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HP0-J21 - Designing and Implementing HP Storage Essentials SRM - Dump Information

Vendor : HP
Exam Code : HP0-J21
Exam Name : Designing and Implementing HP Storage Essentials SRM
Questions and Answers : 73 Q & A
Updated On : December 7, 2018
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HP0-J21 Designing and Implementing HP Storage Essentials SRM

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HP0-J21 exam Dumps Source : Designing and Implementing HP Storage Essentials SRM

Test Code : HP0-J21
Test Name : Designing and Implementing HP Storage Essentials SRM
Vendor Name : HP
Q&A : 73 Real Questions

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HP Designing and Implementing HP

What’s All This HP Museum Stuff, anyways? | killexams.com Real Questions and Pass4sure dumps

Ken Kuhn (Fig. 1), an adjunct professor within the branch of Electrical and laptop Engineering on the school of Alabama at Birmingham, wrote Bob Pease back in January of 2006, “just a short word to make you aware of my web site committed to analog electronics and heritage. Take the photo tour of my shop and museum (Fig. 2). This can be probably the most biggest domestic electronics shops anyplace. All of this antique analog electronics is menu pushed the usage of analog GUI— the devices perform the function the knobs factor to. No programming required. assist menus now not essential. I relish your column in electronic Design— sustain the decent work.”

1. Ken Kuhn together with his cat in entrance of a working bench at his HP Museum in Alabama. (Courtesy of Ken Kuhn)

2. As an analog aficionado, Kuhn’s cache of cool look at various equipment additionally has Tektronix, prevalent Radio, and lots of other historic, traditional check device. (Courtesy of Ken Kuhn)

Pease thanked Ken for the compliment about his articles and introduced an emphatic “That, i admire!!” involving the analog GUI (graphical person interface). After reviewing the web page, Pease cited,

“in one paragraph you say, "There should be a book...." I saw the ebook in regards to the 25 best possible items of HP; that came out from HP, about a dozen years in the past. Or turned into it 18 or 20? I purchased and studied it and discovered some. Do you've got that ebook? I do not know the place I put mine. It was first rate bed-time reading. Do you've got a "desired listing" of historic HP instruments or guideline Manuals? I, too, used to study the schematics of the brand new gadgets similar to Tektronix, HP, facts Precision, etc. and so on. nowadays, every thing is so computerized, and most of it, I hate. Menus, I hate. I select your analog gui. it's like analog PowerPoint. howdy, in a pair months, can i send individuals to your museum? there is also a Philbrick Archive, and that i should additionally send americans to analyze that. finest regards. / rap”

Pease ought to have pored over Ken’s site once more, seeing that four hours later he wrote back, “howdy, Ken. that's a very best museum! at the beginning i used to be worried about those tall racks of device (Fig. 3), have been simply an invitation for an earthquake to knock all of them down. however as you seem to reside in Alabama, I bet they are protected. i hope you don't seem to be too near that earthquake website in New Madrid, Illinois, or Missouri, or something. I bet you are at least one hundred miles away, enabling for the measurement of Mississippi. Very fine work!!”

3. Bob Pease concerned concerning the earthquake balance of these tall racks in Kuhn’s assortment. Kuhn certain Pease that there have been few earthquakes in Alabama, and the racks are laced to posts maintaining up the roof. (Courtesy of Ken Kuhn)

Kuhn wrote back,

“I reside in Birmingham, Alabama so earthquake possibility is minimal. youngsters, the row of racks is going to be secured to the residence posts (I think they're obscured in the photograph) only for insurance.

“As for the HP e-book you mentioned. i'm not aware about that certain one. besides the fact that children, there become an HP book that turned into published in 1983 titled, ‘inventions of chance: Matching expertise with Market wants.’ This publication turned into chosen articles from the HP Journal. This ebook featured about 31 giant HP devices. I even have this publication and it's wonderful analyzing. That can be the one you're speakme about. FYI: there are two books in regards to the historical past of HP which are being written now and i guess should be posted this 12 months or subsequent. One is a biography of Mr. Hewlett, Mr. Packard, and the company, and is being written by using Michael Malone— a well-recognized writer of books about Silicon Valley. The different e-book is being written by using two former HP employees and should be extra concerning the company.

“As for a desire record for HP gadget, I do have a minimal listing, I personal most every little thing else. This listing contains an HP204A oscillator and manual. This one become a battery-operated vacuum tube transportable unit and is very infrequent. I actually have the greater regular HP204B, C, and D instruments. also an HP200T oscillator. this is a distinct edition of the HP200 sequence oscillators for telemetry testing. it's the handiest 200 sequence oscillator I do not need. i do know there are a few greater, however my intellect is blank in the mean time.

“i'm drawn to locating an HP803A VHF Impedance bridge and the HP417A VHF detector that goes with it. I have these in my assortment, however HP is interested in buying this set for the archives. remaining fall i was contacted via paintings Fong in Palo Alto (see some article links about him on my internet site page about HP humans) who became the engineer who developed these and he discovered them on my net web page. He turned into working with Anna Mancini (HP corporate archivist) trying to find these for a documentary HP become filming. I didn't need to promote my units but offered to loan them for the movie however time limits ran out. Anna instructed me that HP still wanted to purchase a group. I stated that i'd watch for some to show up. I have checked every supply i do know but no success thus far— these contraptions are very rare.

“feel free to refer people to my net website. I can also give personal tours. One revenue adult from Agilent is planning to take the tour next time he is on the town. an awful lot greater is coming for the web website as I have time, so check returned sometimes to look new material. I enjoyed meeting you about two years in the past in case you have been doing a country wide Analog Seminar in Huntsville. Hope to see you once again sooner or later. i'm established and fashionable in the community for my analog electronics knowledge. i used to be literally drafted many years in the past to teach evening analog electronics on the institution of Alabama, Birmingham. I actually have been doing that for about the closing 18 years besides my day job. serious about now, Ken.”

Pease immediately forwarded the thread to me and a few friends. He stated, “hi, guys, this memo includes his "need listing". I wager, even right here within the Valley, it would be slim pickings to discover such historic stuff. I advised him he need to publish a bit "desired" section on his web pages. / rap”

I dropped a observe to Kuhn to ask permission to run his photos and quote him. He introduced:

“I truly leave out Bob Pease. He became my variety of guy. I actually have a couple of emails with him and also bought to meet him some years ago. i am now retired but am working just about full time on a captivating analog electronics project i used to be drafted into. I even have a piece of writing in digital Design about corridor networks used to make notch and bandpass filters. there's additionally a pdf of the content material on my very own website. I actually have been contacted by using a number of people who saw it and had pleasing applications.

“I also operate the HP reminiscence assignment, which changed into developed through a chum of mine, Marc Mislanghe, who labored for HP France. alas, he died in 2014 and that i turned into drafted to take over the site. The web site is big with a whole lot statistics and memoirs of former HP engineers.

“probably the most books that had now not been posted on the time of my correspondence with Pease is ‘The HP Phenomenon’ written via Charles house and Raymond price. It turned into published in 2009 and i am outlined in the book. i know Mr. apartment and offered a little analysis for him. The Michael Malone e-book is ‘invoice and Dave.’ I met Mr. Malone and provided him some research too. round 2007 I donated an HP417A and HP803A to the Agilent background middle. I also donated an HP200B oscillator to Stanford school and it's on display at the HP garage reveal on the Huang Engineering middle.

“I even have had the pleasure of an inner tour of the famous HP storage and condominium. There are YouTube videos [check out one of them below] of presentations on the HP company auditorium that my friends, Glenn Robb, Marc Mislanghe, and that i did again in 2007 about our HP heritage work and sites. The Hewlett Packard Archive site operated by Glenn Robb also has lots of HP counsel.”

I should still additionally mention my chum and fellow tech author Steve Leibson’s web site concerning the HP 9825 computer desktop from 1977. The website has suggestions on past and later HP computers as smartly. Leibson writes with the conviction of a former Colorado HP employee.

Stanford professor Tom Lee instructed me about HP giving a high school pupil an oscilloscope returned within the Sixties. Kuhn knew all about that story and forwarded me a 2009 email titled “A heartwarming HP story.” It become by Ken Chalfant, the engineer who obtained the free ‘scope. Chalfant wrote:

“My story involving Hewlett Packard starts in 1967 when i used to be a junior excessive college student, age 13. i was already completely focused on electronics, owned an EICO VTVM (vacuum-tube voltmeter), and become attempting to save up money to buy a kit-form oscilloscope from HeathKit. My science category went on a tour of the native HP plant right here in Colorado Springs, CO. Wall to wall, as far as I might see, had been oscilloscopes and check device so far beyond superb that I very nearly had a seizure.

“once I obtained home I known as out to the plant and asked if they had any used scopes for sale. ‘We don't sell our used equipment.’ got here the answer. ‘How a great deal is your cost-effective scope in kit kind?’ I requested. ‘We put all our machine together, we do not offer kit kind.’ become the reply, adopted by ‘Would you adore a catalog?’

“My mom took me out to the plant and i met Norm hall, the local advertising supervisor that I had talked to on the mobilephone. He gave me a replica of their catalog. Oh my! What a catalog. It changed into well-nigh an inch thick of glossy pages stitched complicated-sure into an exquisite book. I took it all over the place and wore it out. It became now not best full of their gadget, however a good deal of tips on how their gadget worked and how to practice it. That catalog was my first electronics instrumentation textual content book. I nonetheless have that exact replica and i have additionally bought a pristine reproduction for my library.

“i was now not able to surrender on getting an HP scope, so I wrote Mr. Hewlett a letter and asked him if I may buy a used one. neatly, to maintain an extended story a little bit shorter, Mr. Hewlett gave me a 120B scope. Forty years to the month later, Agilent [now Keysight] rediscovered the story of what Mr. Hewlett had achieved for me. Jay Alexander, now CTO of Keysight, invited me out to the factory as a visitor speaker to talk about Mr. Hewlett and the ‘ancient’ HP days, however I actually have never labored for HP. Then they did it once more— they gave me another scope (Fig. 4), an MSO6054A. Wow, what an awesome oscilloscope. i like it!

4. As a 13-year-ancient electronics lover, Ken Chalfant wrote invoice Hewlett asking to buy a used oscilloscope. Hewlett despatched him a brand new one. Forty years later, Agilent (now Keysight) celebrated the event via giving Chalfant one more free ‘scope. (Courtesy of Ken Chalfant)

“It’s surprising that a person I in no way met and a corporation I under no circumstances worked for have had the sort of profound and nice affect on my lifestyles. Mr. Hewlett and a few Colorado Springs engineers like Blair Harrison, the heart beat generator lab supervisor who kindly tolerated me, giving me constituents, and turning me unfastened to talk to his engineers at the plant, helped me so a great deal when i was just a kid. Then after telling ‘my’ story and assisting them remember how incredible Mr. Hewlett and HP in fact had been, they ‘framed’ my existence through giving me yet another scope.

“Of path, i am absolutely biased, but I doubt there'll ever be two extra large and honorable business individuals then Mr. Hewlett and Mr. Packard. I don't believe any individual will ever construct an organization a good way to contribute as tons in technical terms and so plenty extra in human phrases than did Mr. Hewlett and Mr. Packard. Agilent [now Keysight too] nevertheless makes incredible equipment and there are lots of dazzling, caring, concerned individuals working there, however without Dave and invoice, Agilent isn't, and never could be the historical Hewlett Packard.”

After checking with Chalfant for permission to run his photo and phrases, he stated, “I actually have at all times been a bit stunned, possibly humbled is a stronger word, that I have been blessed greater than as soon as with the aid of Mr. Hewlett’s type generosity. In a small method the story is about me as a kid, but in a bigger approach the story is all about Mr. Hewlett. It in fact is an opportunity to gain insight into probably the most two men who created the most desirable enterprise in order to ever exist. with the aid of assessment I don’t feel there are any awesome business leaders. starting to be up, my peers envied activities heroes, rock-n-roll stars, and film stars. I didn’t care about any of that. The one man I admired, and nonetheless do, is Mr. Hewlett.” Chalfant then delivered, “I still have, and will always have, that a hundred and twenty-B oscilloscope.”

Like Chalfant, i'm biased as neatly. I consulted to the HP automobile programs Division returned in 1998. The HP means was alive and well, and it changed into one of the finest jobs I ever had, with the most desirable boss I even have ever met. If any of the brand new HP entities, Keysight, or Agilent, or HP business, want to be mindful the fierce loyalty they have from engineers, they may still feel about how bill Hewlett and Dave Packard handled a young junior excessive college kid from Colorado, and how they inspired school professors and others to document the company’s legacy (Fig. 5). it truly is the way you build a brand.

5. one more working bench in Ken Kuhn’s HP Museum. word the track lighting fixtures for the benchtop. (Courtesy of Ken Kuhn)

That Colorado Springs advertising manager giving a 13-yr-ancient child a pricey difficult-sure catalog did not assist that quarter’s income. Yet the long-time period improvement to HP/Agilent/Keysight/HP enterprise is well-nigh incalculable. That’s the difference between advertising and marketing and revenue. greater groups should still be taught that.


HP Spectre Folio 13 vs. HP ENVY x2: Which if you purchase? | killexams.com Real Questions and Pass4sure dumps

HP did anything special with the Spectre Folio, growing a special computing device that isn't only fabricated from aluminum but additionally 100 percent precise leather. while or not it's not a real 2-in-1 wherein it will also be used as a removable tablet, you'll be capable of savor as much as 18 hours of use on the go.

$1,300+ at HP

pros
  • actual leather-based
  • up to 18 hours of battery lifestyles
  • 1W Intel reveal
  • brilliant construct high-quality
  • Stylus guide
  • Cons
  • can't be indifferent
  • need to clean the leather-based
  • HP ENVY x2 has a kickstand, keyboard and active pen, and able internals. Get a seventh Gen Intel Core CPU, 8 GB of RAM, and a quickly 256 GB PCIe SSD to handle most day's work, however watch out for the battery that in reality lasts best about eight hours.

    $950+ at HP

    execs
  • authentic 2-in-1 with detachable tablet
  • Intel-powered pill
  • sensible design
  • Stylus support
  • Cons
  • less battery than the Spectre Folio
  • more affordable substances used than ARM edition
  • in case you be on the hunt for a premium computing device it really is designed primarily as a desktop, go along with the Spectre Folio. If a pill sounds like the better option, the ENVY x2 allows for some flexibility with the detachable keyboard cowl, as long as you could make do with an ARM processor.

    by way of the numbers

    it be difficult to evaluate the two gadgets towards one yet another considering that the HP ENVY x2 is available in each ARM and Intel processors. To retain issues reasonable, we are going to be using Intel processors in the ENVY x2, but if you had been to go along with the ENVY, we'd advocate on account that ARM for explanations we are going to cover beneath.

    HP Spectre Folio HP ENVY x2 Processor Intel Core i5-8200YIntel Core i7-8500Y Qualcomm Snapdragon 835Intel Core i5-7Y54 RAM 8GB 4GB or 8GB garage256GB 128GB or 256GB screen length13.three inchesTouch 12.three inchesTouch display choice1920 x 108016:9 factor ratio 1920 x 108016:9 point ratio photos Intel UHD pix 615 Intel HD portraits 615 Ports 2x Thunderbolt 31x USB category-C 3.1 Gen 13.5mm audio 2x USB-C (Gen 1, DisplayPort 1.three vigor delivery)microSD3.5mm audioSIM tray Biometrics IR digital camera for home windows hey IR camera for windows hey Stylus N-trig N-trig Battery up to 18 hours up to 12 hours (eight for Intel) Dimensions 11.5 inches x 7.9 inches x 0.33 inches(292 mm x 201 mm x eight.5 mm) 11.fifty three x 8.28 x 0.27 inches(293 x 210 x 6.eighty five mm) Weight 3.28 kilos (1.45 g) pill: 1.57lbs (0.71kg)With KB: 2.67lbs (1.21kg) Intel vs. Intel vs. ARM

    performance is fairly similar between the Intel-powered HP ENVY x2 and Spectre Folio 13 because both gadgets use low-vigor Intel processors, even though the Spectre Folio will also be kitted out with a Core i7-8500Y CPU. it's additionally worth noting that the ENVY x2 comes with 7th Gen Intel processors, as opposed to eighth Gen chips inner the Spectre Folio.

    The ARM edition of the ENVY x2 is much less powerful than all Intel processors obtainable for both instruments, notwithstanding it does allow the ENVY x2 to be "at all times on" a whole lot like your smartphone. you could press the energy button and it be respectable to move. The ARM processor additionally lets you get greater computing day out of the battery due to the fact that it attracts less juice general.

    as long as you do not deserve to do any video processing or intensive multitasking, the Snapdragon ARM processor is more than satisfactory. It really is a draw in this regard, considering the fact that storage, RAM, and other internal add-ons are all very similar, counting on configuration.

    leather looks more advantageous

    The ENVY x2 is rarely an unpleasant machine, neither is it one we find missing within the design department. The problem is that we're comparing it tothe Spectre Folio, which activities leather that consequences in a far more costly and top class seem to be and feel. by using placing the ENVY x2 and Spectre Folio facet-by using-facet, you'll be suitable in assuming the leather-based-touting notebook became the more high priced gadget.

    there is an obstacle to having leather-based as a part of the design, which includes regular cleaning. both shows are equivalent in resolution and applied sciences, and using aluminum in both items make them appear and consider excessive excellent. if you happen to be all about looks, the Spectre Folio is a suit made in heaven. N-trig technology is supported in each circumstances, making it viable to use a stylus just like the HP Tilt Pen or floor Pen.

    don't purchase the Intel ENVY x2

    comparing the ARM ENVY x2 against the Spectre Folio is unfair because of the variations in performance between both processors, nevertheless it's worth since due to how HP managed to mess up the Intel version of the ENVY x2. As covered in our ARM vs. Intel ENVY x2 comparison, the company has cut corners on a lot of elements.

    If the equipment become similar in each means however the CPU, the Intel-powered ENVY x2 would be a fine equipment usual, but this simply isn't the case. The further can charge of going with the Intel processor potential you're going to have fun with shorter battery life, worse keyboard and trackpad, more limited kickstand positioning, no instant-on and all the time related functionality, and a price of $ninety nine if you upgrade to windows 10 pro.

    if you like the appear of the ENVY x2 over the Spectre Folio (possibly leather just is rarely your factor) we strongly urge you to agree with the ARM processor variant.

    HP Spectre Folio is a top rate leather pc

    If best the most excellent will do, HP offers the Spectre Folio and it's a unique computing device made from leather-based and aluminum. the use of this computing device out within the wild will turn heads and make you suppose better than the rest. The option of LTE and an Intel Core i7 makes it a competent windows 10 laptop.

    top class leather

    HP Spectre Folio 13

    HP Spectre Folio is one enjoyable equipment.

    HP determined to get a hold of a brand new windows 10 computing device and desired so as to add some leather into the mix. The culmination is the Spectre Folio, a premium computing device that not best looks incredible, however has the necessary horsepower to make it via even more intensive projects.

    HP ENVY x2 is a pretty good ARM windows 10 tablet

    When portability is what you definitely want, make sure you go together with the ENVY x2. The means to detach the equipment from its base makes it feasible to use it as a lightweight notebook and a tablet, reckoning on the immediate needs. The only downside is the battery existence, which is around eight-10 hours less than the Spectre Folio. this is until you get the ARM version, which we advocate over Intel.

    effective tablet

    HP ENVY x2

    Balancing portability and performance.

    There are some severe benefits of purchasing the HP ENVY x2, including the great reveal, just a little most economical expense, and configurations. it be possible to avoid wasting critical dollars and go with an ARM processor with better battery existence.

    This submit may also include affiliate hyperlinks. See our disclosure coverage for greater details.

    prosperous Edmonds

    rich is a word conjurer and editor at windows primary, protecting everything involving home windows, gaming, and hardware. which you could follow him over on Twitter at @RichEdmonds.


    HP's tech chief on the way forward for manufacturing and how the company's reclaiming its Silicon Valley innovator status | killexams.com Real Questions and Pass4sure dumps

    No result discovered, try new key phrase!As HP Inc. continues to diversify from own computer items ... years of the industrial Revolution has been — into a global wherein what you do is: I design digitally, in a smart, AI-driven worl...

    HP0-J21 Designing and Implementing HP Storage Essentials SRM

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    HP0-J21 exam Dumps Source : Designing and Implementing HP Storage Essentials SRM

    Test Code : HP0-J21
    Test Name : Designing and Implementing HP Storage Essentials SRM
    Vendor Name : HP
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    The Best Touch-Screen Laptops of 2018 | killexams.com real questions and Pass4sure dumps

    How to Shop for a Touch-Screen Notebook

    Ever since smartphones ate the world whole, tapping and touching screens has become an expectation in new gear you buy. But tap the screen on any given laptop in your local electronics superstore, and it's a roll of the dice whether you'll get a response, or just an oily fingerprint.

    Touch screens are a staple of modern computing, but not every laptop has one. It's a feature that you need to shop for specifically. With some categories of laptop, it's uncertain whether the machine will support touch. With others, their very nature is a virtual guarantee that they will—or won't. The key is knowing the difference.

    At PCMag, we test hundreds of computers a year, some with touch screens, many without. Based on our in-labs testing and deep-dive reviews, we compiled the above matrix of the best touch-equipped machines that have passed through our hands. Below, let's run through the basics of laptop touch screens and why you might (or might not) want one.

    Touch Screens 101: The Basics

    First of all, some terminology. In most cases, a touch-screen-equipped laptop has a conductive digitizing layer, overlaid on the panel element, that allows for tap, pinch, or swipe input. Most modern laptops make use of what's known as capacitive touch input, in which the over-screen layer detects where you've touched with one or more fingers using the conductivity of your skin. This layer is typically a grid of ultra-fine wires, or a film; it needs to be subtle or translucent enough to not interfere with viewability.

    That electrical aspect explains why touch screens don't work if you're wearing gloves. This is in contrast to the resistive touch technology you might see in other implementations of touch screens, in which the upper layer covering the screen flexes. When you write or tap on a resistive screen, that upper layer closes a circuit with another layer beneath it. (Having to press a little to, say, sign your name on a screen is an earmark of resistive touch.)

    Back to capacitive, though. The capacitive touch layer maps your finger or pen input to coordinates on the screen that determine the position of your touch. Also detected are parameters such as tap speed, whether you've tapped versus swiped, or if you've executed multi-finger touch. Note that tap pressure sensitivity is not a parameter that is typically detected through simple finger touch, though certain touch implementations and stylus pens might transmit that. More on those later.

    A few panels use an infrared X/Y axis-mapping technology, in which sensors in the bezel cross-reference an interruption of their beams at a specific intersecting screen location, but the employment of this tech in laptops is rare. It's usually seen only in cases where the panel is very large, or uses a display technology that is not available in a variant that can accept capacitive touch (or is cost-prohibitive).

    Note that the screens in a given laptop family may come with options for touch and non-touch versions. This is the case with some mainstream and business-oriented clamshell laptops, especially ones in model lines that sell in lots of subtly different retail configurations, or that have many tweakable configuration options when sold direct. When looking at one of these machines, be very much cognizant whether or not the particular screen or screen option you are looking at supports touch.

    For example, a laptop might come in a version with a 1,366-by-768-pixel screen without touch support, as well as in another with an upticked 1,920-by-1,080-pixel (1080p) panel that does do touch. Or, more confusingly, the manufacturer might offer both touch and non-touch options at 1080p. Attention to detail matters here.

    Which Laptops Will Have Touch Input?

    Depending on the specific kind of laptop you're looking at, the tendency toward touch support will vary. Let's dig into the major types.

    Budget clamshells. Most low-cost machines that are straight-up laptops (that is, models that do not have 2-in-1-type hinges or tablet modes) will not have touch screens, but you'll run across the occasional exception. In under-$500 machines, a touch screen should be seen as a pleasant surprise, not a given. Exception: 2-in-1s, more about which in a moment.

    For more, see our picks for the best budget laptops.

    Mainstream and business clamshells. You'll see the most varied mix of touch and non-touch models here. This is the category most likely to be frought with touch versus non-touch models in the same system family. Take for example, the 1080p non-touch panel versus the 4K touch panel in the latest Dell XPS 13.

    For more, see our picks for the best business laptops.

    2-in-1 convertibles and detachables. By their very nature, all 2-in-1 machines will have touch screens. When you're using a 360-degree-rotating 2-in-1 in tent or tablet mode, you don't have access to the keyboard, so touch input is essential in those modes. Likewise in a detachable 2-in-1: Remove the keyboard, and all you're left with for input is your tapping fingers or a stylus, Indeed, a key differentiator here is whether the 2-in-1 additionally supports stylus input, and if so, whether the stylus is included or costs extra. A high-profile example of the latter: the Microsoft Surface devices, which mandate $99 for their complementing Surface Pen stylus.

    For more, see our picks for the best convertible laptops.

    HP Spectre X2 (2017)

    Gaming laptops. Most gaming laptops have 15- or 17-inch screens, and very few offer touch input. PC gamers don't have much use for touch input (PC games aren't written to support it), and implementing a touch screen would reduce what is an often already-challenged battery.

    For more, see our picks for the best gaming laptops.

    Giant-screen machines. It's rare to see a laptop of any stripe with a 17-inch display that supports touch input. Touch-panel implementations at that size are pricey and simply not cost-effective. Razer's Blade Pro is an uncommon exception, and the touch screen is available only as an option.

    New Razer Blade Pro (2017)

    Chromebooks. Touch screens did not feature in early Chromebook models, but we're seeing them in more and more new ones. With the emergence of 2-in-1 convertible chromebooks (most are 360-degree-rotating designs), touch is becoming more common in this class, especially as support for Android apps profilerates on these machines. The Chrome OS operating system itself is not optimized or intended for touch.

    For more, see our picks for the best Chromebooks.

    Google Pixelbook

    Apple MacBooks. Denied outright…sorry! No current Mac desktop or MacBook laptop supports touch input, unless you count the thin Touch Bar touch strip forward of the keyboard on some recent MacBook Pro models. (The Touch Bar is merely a contextual-shortcut strip that adapts to the program at hand.) Like Chrome OS, the macOS operating system isn't optimized for touch. In the Apple-sphere, full touch displays remain the province of the company's iPhones and iPads, running iOS.

    Do You Even Need a Touch Screen?

    You might think it's a given that having a touch screen is a good thing, if you can get one. But you'll want to consider a few factors before going all in.

    Consider battery drain. All else being equal, a touch screen will reduce your battery life versus an identical non-touch screen in the same system. That's because the system has to keep a trickle of power fed to the digitizing layer, which will be always on, waiting for your fingertip or stylus tip to tap. That said, we emphasize "all else being equal": The battery factor is seldom an apples-to-apples comparison, because touch screens in a given laptop line that also offers non-touch options tend to be in higher-end, higher-resolution, or higher-brightness screens that, by their nature, consume more power to start with—the touch aspect regardless.

    Will you actually use it? Think about how you actually work or play, day to day, before insisting on a touch panel. If your main PC activity is mincing through fine-celled spreadsheets, jabbing a touch screen with a finger might not afford the precision or utility you need for operations. If you spend 80 percent of your time tapping from YouTube vid to YouTube vid, on the other hand, touch can be a delight.

    Also consider the ergonomic aspects. To use a touch panel much, you'll be reaching from keyboard to screen, which can clash with your workflow on a clamshell machine. So make sure that kind of reaching jibes with your day-to-day usage. Alternately, if you'll often be tapping at music- and movie-playback controls on the screen or poking frenetically at YouTube thumbnails, consider a 2-in-1 that you can prop up in A-frame or tent mode, in which tapping the screen makes more sense and requires less reaching.

    Asus Chromebook Flip (C302CA-DHM4)

    Chromebook? Think about the Android factor. As we mentioned earlier, Chrome OS is not optimized for touch. So, on a Chromebook, touch is only marginally useful unless yours is a 2-in-1, or you mean to use a lot of Android apps (that is, assuming the unit supports them). For Android stuff, a touch screen is almost essential. Controlling these apps with a touch pad and keyboard is a fast path to frustration, since they were designed to work on smartphones and tablets.

    Are you good with glossy? Most touch screens have a glossy facing that extends across both the screen and its bezels (the borders surrounding the screen). Matte-finish touch screens are uncommon. The seamless bezel coverage allows for side-in swipes and prevents interruption of your tap and swipe activity near the screen's periphery. That's fine if you like glossy screens, and they can enhance the perceived vividness of the panel. But know that screens of this kind are more prone to smudging, and they tend to be afflicted by glare outdoors or under harsh indoor lighting more than matte panels are. Keep a lens cleaning cloth handy.

    Lenovo Miix 630

    Thickness and weight. Implementing a touch layer on the screen's face means a bit of additional material and circuitry. It's minimal, but know that a touch versus a non-touch laptop will levy a slight penalty on both fronts—again, all things being equal.

    You Pen? Stylus Considerations

    Separate from simple tap, swipe, and pinch actions on the screen, pen support requires a touch-capable screen, and if sketching or handwritten note-taking are part of how you work, you'll want to investigate the pen options available in a given touch-screen laptop.

    Usually, it's just the 2-in-1s that will offer them. Stylus types range from a simple passive stick, which is essentially a more precise surrogate for your fingertip, to an active pen, which has a built-in battery and will have click buttons on the pen and possibly support for pressure sensitivity.

    Top of the line are true digital pens, which are active—meaning, they are powered by their own internal battery. Pens of this kind will include click buttons, pressure-sensitivity detection, angle detection, and possibly a digital "eraser" on the top. A prime example of the latter is Microsoft's Surface Pen we mentioned earlier, which works with its line of detachable laptops.

    If you go this route, also investigate the pen storage scheme. A laptop or convertible stylus is easy to lose in your bag or leave behind if it doesn't have a niche to tuck into. Some laptop and 2-in-1 makers employ a magnetic "clip" that sticks the pen onto the side of the unit (the Surfaces are known for that), or in a few cases, provide a plastic bracket that may insert into a USB port.

    Windows Ink, which was introduced in a 2016 update to Windows 10, can also be a compelling reason to investigate the stylus capabilities of a given touch-enabled laptop. With the introduction of Ink came support for Sticky Notes, Sketchpad, and Screen Sketch within the OS. With Sticky Notes, you can scrawl on virtual Post-It notes and have Cortana interpret relevant information from your scribbles, such as email addresses and phone numbers, and make them actionable. Sketchpad lets you do freeform drawing with basic tools, while Screen Sketch lets you annotate onscreen images freehand, great for UI designers, developers, or others who work with graphical elements that need feedback. Other pen-enabled apps appear in the Windows Ink Workspace, a pen-centric panel that you can pop up with an icon in your taskbar.

    So, Which Touch-Screen Laptop to Buy?

    That's where our reviews come in. Our rankings above and below line up our current-favorite clamshells, detachables, rotating 2-in-1s, and Chromebooks that support touch. Note that if you find one you like and decide to order from an e-tailer, we strongly recommend that you double-check that the specific model you're looking at (especially if it's a configurable clamshell) actually does include the touch-screen option.

    In the case of a few models in our ranking, the specific model may support a touch-screen option, but we may have reviewed a non-touch version and our online pricing links may point to that. Bear that in mind if you click through to an e-tailer.

  • Pros: Convertible hinge design. Lots of storage and RAM. Full HD screen. Metal body construction. Two USB-C ports. Warranty includes damage protection. Bright and clear display. Backlit keyboard.

    Cons: Legacy connections require adapters. Pricier than other chromebooks.

    Bottom Line: The Asus Chromebook Flip (C302CA-DHM4) might be more expensive than the average chromebook, but its rich selection of features makes it well worth the extra money.

    Read Review
  • Pros: Elegant, compact design. Two Thunderbolt 3 ports plus USB-C.

    Cons: No HDMI or USB Type-A ports. 4K display means shorter battery life than its predecessor. Webcam looks up your nose.

    Bottom Line: A new rose gold and white color scheme-well worth an extra $50-makes the Dell XPS 13 a stunning fashion statement, and it's backed by strong performance and a svelte but sturdy build.

    Read Review
  • Pros: Superb audio quality. Comfortable, oversized touchpad. Thin, sleek design. Screen aspect ratio makes editing documents easier. USB-C and USB 3.0 ports.

    Cons: Awkward webcam placement.

    Bottom Line: With a sleek aluminum body, ample computing power, and superb audio quality, in some ways, the Huawei MateBook X Pro is a better ultraportable than the Apple MacBook Pro that inspired it.

    Read Review
  • Pros: Integrated stylus. Thin and light. Stylish metal design with multiple color options. Optional 4K display. Webcam privacy filter. Dolby Vision (HDR) support. Excellent battery life.

    Cons: No SD-card reader. Ships with some bloatware.

    Bottom Line: With a revamped hinge, an integrated stylus, and a sleek design, Lenovo's Yoga C930 2-in-1 convertible laptop is even better than its winning predecessor.

    Read Review
  • Pros: Remarkably thin and light. Formidable six-core Xeon horsepower. Gorgeous 4K touch screen.

    Cons: Expensive. Unusable webcam placement. No middle button (or any buttons) on touchpad. Only one Thunderbolt 3 port.

    Bottom Line: Dell splices its XPS 15 DNA with its Precision mobile workstation line to create the 5530, a lightweight basher with overpowering six-core Xeon and Nvidia Quadro chops and a spiffy 4K touch panel.

    Read Review
  • Pros: Elegant detachable design. Spiffy screen. More lap-friendly than tablets with kickstands. Strong performance and battery life.

    Cons: Expensive. No backlit keyboard. Mediocre cameras.

    Bottom Line: It could use a $50 or $100 price cut, but HP's pioneering Chromebook x2 detachable joins Google's $999 Pixelbook as the elite of the Chrome OS field.

    Read Review
  • Pros: Premium build quality. Thin and light. Very good battery life. Quick charging.

    Cons: Expensive. Finicky touch screen. Anemic speakers. No Ethernet port.

    Bottom Line: The Lenovo ThinkPad X1 Carbon offers premium features in a slim and attractive package that business users will love-just be prepared to open your wallet wide for this top-notch ultraportable laptop.

    Read Review
  • Pros: Premium alloy construction. Elegant convertible design. Sharp high-resolution touch display in new larger size. Discrete Nvidia GTX 1060 graphics. Very long battery life. Multiple configuration options. Xbox wireless controller receiver is integrated.

    Cons: 16GB RAM maximum. Surface Pen is an additional purchase. Adding SSD storage is pricey. Some finicky issues required troubleshooting in our tests.

    Bottom Line: The Surface Book 2 is a feat of design, a top-of-the-line premium convertible 2-in-1 laptop that's fast, long lasting, versatile, and portable. It's even up for gaming.

    Read Review
  • Pros: Speedy new 8th Generation Intel processor. Good battery life. Premium feel. Sleek all-black color option. Brilliant display. Well-implemented kickstand.

    Cons: Minimal changes from previous model. As ever, keyboard sold separately. Not ideal for in-lap use. Somewhat restrictive configuration combinations. Limited ports.

    Bottom Line: With a modest speed boost and a new color choice, the Microsoft Surface Pro 6 may not have changed much from the previous iteration, but what we loved about this 2-in-1 convertible then, we still love now.

    Read Review
  • Pros: Premium build quality. Beautiful 4K touch display with strong color spectrum coverage. High-end gaming performance.

    Cons: Loud fans. Audiovisual differences from non-THX version are minor for most users. Short battery life.

    Bottom Line: The New Blade Pro is a modest improvement on the previous iteration, with a THX-certified panel and audio alongside a slightly faster unlocked Core i7 processor.

    Read Review

  • Biggest Hadoop mistakes and how to avoid them | killexams.com real questions and Pass4sure dumps

    Hadoop

    Hadoop, for all its strengths, is not without its difficulties. Business needs specialized skills, data integration, and budget all need to factor into planning and implementation. Even when this happens, a large percentage of Hadoop implementations fail.

    To help others avoid common mistakes with Hadoop, I asked our consulting services and enterprise support teams to share their experiences working with organizations to develop, design and implement complex big data, business analytics or embedded analytics initiatives. These are their top seven mistakes, and some advice on how to avoid them.

    Mistake 1: Migrate everything before devising a plan

    As tempting as it can be to dive head first into Hadoop, don’t start without a plan. Migrating everything without a clear strategy will only create long-term issues resulting in expensive ongoing maintenance. With first-time Hadoop implementations, you can expect a lot of error messages and a steep learning curve.

    Successful implementation starts by identifying a business use case. Consider every phase of the process -- from data ingestion to data transformation to analytics consumption, and even beyond to other applications and systems where analytics must be embedded. It also means clearly determining how Hadoop and big data will create value for your business.

    My advice: Maximize your learning in the least amount of time by taking a holistic approach and starting with smaller test cases. Like artisan gin, good things come in small batches!

    Mistake 2: Assume rational database skillsets are transferable to Hadoop

    Hadoop is a distributed file system, not a traditional relational database (RDBMS). You can’t migrate all your relational data and manage it in Hadoop the same way, nor can you expect skillsets to be easily transferable between the two.

    If your current team lacks Hadoop skills, it doesn’t necessarily mean you have to hire all new people. Every situation is different, and there are several options to consider. It might work best to train up existing people and add a few new. You might be able to plug skills gaps with point solutions in some instances, but growing organizations tend to do better in the long run with an end-to-end data platform that serves a broad spectrum of users.

    My advice: While Hadoop does present IT organizations with skills and integration challenges, it’s important to look for software, along with the right combination of people, agility, and functionality to make you successful. More tools are now available that automate some of the more routine and repetitive aspects of data ingestion and preparation, for example.

    Mistake 3: Treating a Hadoop data lake like a regular database

    You can’t treat a data lake on Hadoop just like a regular database in Oracle, HP Vertica, or a Teradata database, for example. Hadoop’s structure is totally different. It also wasn’t designed to store anything you’d normally put on Dropbox or Google Drive. A good rule of thumb is: if it can fit on your desktop or laptop, it probably doesn’t belong on Hadoop!

    Data in a lake exists in a very raw form. Think of a box of Lego: you have what you need in it to build a Star Wars figurine, but it’s not a figurine out of the box. People imagine a data lake to be pristine, clear, and easy to find. But as your organization scales up to onboard hundreds or more data sources, in reality they often end up being three miles wide, two inches deep and full of mud! IT time and resources can easily get monopolized, creating hundreds of hard-coded, error-prone data movement procedures.

    My advice: Take the proper steps up front, in order to understand to best ingest data to get a working data lake. Otherwise, you’ll end up with a data swamp. Everything will be there, but you won’t be able to derive any value from it.

    Mistake 4: I can figure out security later

    High profile data breaches have motivated most enterprise IT teams to prioritize protecting sensitive data. If you’re considering using big data, it’s important to bear in mind that you’ll be processing sensitive data about your customers and partners. Never, ever, expose credit card and bank details, national insurance numbers, proprietary corporate information and personally identifiable information about clients, customers or employees. Protection starts with planning ahead, not after deployment.

    My advice: Address each of the following security solutions before you deploy a big data project:

  • Authentication: Control who can access clusters and what they can do with the data
  • Authorization: Control what actions users can take once they’re in a cluster
  • Audit and tracking: Track and log all actions by each user as a matter of record
  • Compliant data protection: Utilise industry standard data encryption methods in compliance with applicable regulations
  • Automation: Prepare, blend, report and send alerts based on a variety of data in Hadoop
  • Predictive analytics: Integrate predictive analytics for near real-time behavioural analytics
  • Best practices: blending data from applications, networks and servers as well as mobile, cloud, and IoT data
  • Common strategic mistakes

    HiPPO is an acronym for the "highest paid person's opinion." Trusting one person’s educated opinion over data may work occasionally, but Hadoop is complex and requires strategic inquiry to fully understand the nuances of when, where, and why to use it. To start, it’s important to understand what business goals you’re trying to reach with Hadoop, who will benefit, and how the spend will be justified. Most big data projects fail because the business value is not being achieved.

    Once a data problem has been established, next determine whether or not your current architecture will help you achieve your big data goals. If you’re concerned about exposure to open source or unsupported code, it may be time to explore commercial options with support and security.

    My advice: Once a business need for big data has been established, decide who will benefit from the investment, how it will impact your infrastructure, and how the spend will be justified. Also, try to avoid "science projects" -- technical exercises with limited business value.

    Mistake 6: Bridging the skills gap with traditional ETL

    Plugging the skills gap can be tricky for organizations considering how to solve big data’s ETL challenges. There just aren’t enough IT pros with Hadoop skills to go around. On the other hand, some developers proficient in Java, Python, and HiveQL, for example, may lack the experience to optimize performance on relational databases. When Hadoop and MapReduce are used for large scale traditional data management workloads such as ETL, this problem intensifies.

    Some point solutions can help plug the skills gap, but these tend to work best for experienced developers. If you’re dealing with smaller data sets, it might work to hire people who’ve had the proper training on big data and traditional implementations, or work with experts to train and guide staff through projects. But if you’re dealing with hundreds of terabytes of data, for instance, then you’ll need an enterprise-class ETL tool as part of a comprehensive business analytics platform.

    My advice: Technology only gets you so far. People, experience, and best practices are the essential for successful Hadoop projects. When considering an expert or a team of experts as permanent hires or consultants, you’ll want to consider their experience with "traditional" as well as big data integration, the size and complexity of the projects they’ve worked on, the companies with whom they worked with, and the number of successful implementations they’ve done. When dealing with very large volumes of data, it may be time to evaluate a comprehensive business analytics platform that’s designed to operationalize and simplify Hadoop implementations.

    Mistake 7: I can get enterprise-level value on a small budget 

    The low-cost scalability of Hadoop is one reason why organizations decide to use it. But many organizations fail to factor in data replication/compression (storage space), skilled resources, and overall management of big data integration of your existing ecosystem.

    Remember, Hadoop was built to process a variety of enormous data files that continue to grow. And once data is ingested, it gets replicated! For example, if you have 3TB you want to bring in, that will immediately require 9TB of storage space, because Hadoop has built-in replication (which is part of the parallel processing that makes Hadoop so powerful.)

    So, it’s absolutely essential to do proper sizing up front. This includes having the skills on hand to leverage SQL and BI against data in Hadoop and to compress data at the most granular levels. While you can compress data, it’s important to note that data compression affects performance. The compression of data also needs to be balanced with performance expectations for reading and writing date. Also, storing the data may cost 3x more than what you’ve initially planned.

    My advice: Understand how storage, resources, growth rates, and management of big data will factor into your existing ecosystem before you implement.

    Wael Elrifai, senior director of Sales Engineering, Pentaho.

    Published under license from ITProPortal.com, a Future plc Publication. All rights reserved.


    SAP System Landscape Design and Planning Approaches | killexams.com real questions and Pass4sure dumps

    This chapter is from the book 

    Remember, a system landscape exists for each mySAP solution—if you deploy R/3, APO, CRM, and PLM, you will in effect be creating four different SAP system landscapes, one for each product. The focus in this and the following few sections, though, is on what one of these system landscapes looks like from a design and planning perspective, for example R/3 alone or APO alone.

    In the most general form, an SAP system landscape consists of SAP instances (installations of the SAP database and application software) and SAP servers. In the Microsoft world of SAP implementations, there is a one-to-one correlation between instances and servers nearly all the time. That is, the Development instance resides on a dedicated Development server, the Test instance resides on a dedicated Test server, and so on. In the world of UNIX implementations, though, multiple instances can be often found on a single "larger" server. For example, both Development and Test instances can reside on a single server. And multiple application instances can be installed on a single server as well.

    Until last year's release of SAP's Multiple Components, One Database (MCOD) initiative, there was a one-to-one correlation between instances and database systems, too, regardless of the Operating System platform. MCOD is beginning to change this, such that a single "larger" database can be leveraged for multiple instances. However, an important difference between MCOD and multiple instances/one server exists—MCOD ties the same type of databases within different SAP system landscapes together. With MCOD, all Development databases used by your R/3, SRM, CRM, and Workplace implementations can be one and the same. Similarly, all Test databases across R/3, SRM, CRM, and Workplace can be bundled together, too, as illustrated in Figure 3.3. Note, however, that in many cases SAP AG frowns on mixing OLTP and OLAP systems, or combining different databases within the same system landscape. In that regard, forcing an MCOD database server to host your R/3 system's Development and Test databases would therefore be unsupported and contrary to best practices.

    Figure 3.3Figure 3.3 A properly architected sample MCOD deployment is displayed for a typical mySAP enterprise consisting of R/3, CRM, SRM, and Workplace.

    As we move forward with our basic understanding of SAP system landscapes, and seek to understand how your SAP solution vision impacts and is impacted by your landscape decisions, my hope is to achieve the following:

  • Note the relative importance and relationship of technology perspectives to our solution vision

  • Understand why each system landscape is important to fulfilling our vision

  • Note how the presence or absence of a particular system within a landscape impacts the other systems and ultimately the overall solution vision

  • All these design and planning approaches I cover tend to come into play in one manner or another across all mySAP implementations. It's how they are weighted or addressed that makes one system landscape different from the next.

    Simplifying Your SAP System Landscape

    After spending time with hundreds of customers and SAP implementations, I think it is safe to say that when all things are equal, the desire to simplify emerges as an important driver. Simplification takes many forms, too. In the case of the SAP system landscape and how it fulfills our SAP solution vision, the desire to simplify manifests itself in any number of ways:

  • First, the pure number of instances will be reduced to the fewest necessary to get the job done "right" for a particular company. An organization focused on simplifying administrative, change management, systems management, operations, and other tasks will deploy a three-system or even a two-system landscape, whereas similar organizations without the same simplification goals can deploy more. There are trade-offs, of course. A system landscape without a dedicated test instance will, for example, be forced to perform testing in the same system used for development. Because of these kinds of limitations, simplification achieved through instance reductions is not as common as it has been in the past.

  • Instead, a more popular approach to simplification seeks to reduce the number of physical servers in a particular system landscape, by installing multiple instances on a single server. Consolidation of instances is becoming quite common in SAP customer environments today, as displayed in Figure 3.4.

  • Figure 3.4Figure 3.4 Multiple SAP instances can be installed and configured on a single physical server, oftentimes reducing both acquisition and systems management costs down the road.

  • Similarly, deploying a shared disk subsystem and tape backup/restore solution also simplifies a very complex piece of the SAP Solution Stack. This is why my colleagues and I have spent so much time in the last two years designing and implementing Storage Area Networks, or SANs—they provide outstanding performance while simultaneously reducing system landscape complexity and allowing expensive resources like enterprise tape libraries to be shared between systems.

  • Another customer of mine shared with me why they went with the WebGUI as opposed to the classic SAPGUI approach to system accessibility—to simplify desktop support and maintenance requirements.

  • Companies that value simplification will also standardize on a particular solution stack option or approach, too, as this simplifies support and maintenance, and minimizes the need for a variety of onsite/reserved spare parts, the time spent in change management activities, and more.

  • Although simplification tends to work in one direction by encouraging a "do more with less" philosophy, our next topic goes the other route in that it purposefully introduces complexity and differences between various systems within a system landscape—high availability.

    High Availability and the SAP System Landscape

    When it comes to high availability, many technology professionals automatically think about what it means to improve the availability of a particular system or hardware component—thoughts of basic HA offerings like clustering or redundancy come to mind. With regard to the broader topic of how your solution vision impacts your SAP system landscape, though, high availability equates to the following:

  • Business-driven requirements—HA offerings and approaches are normally implemented to satisfy specific business-oriented needs, and therefore form an integral part of your overall SAP solution vision.

  • Complexity—HA complicates the SAP system landscape, as HA offerings and approaches tend to only really exist or apply to the Production system and at minimum (hopefully!) another similarly configured system within the landscape.

  • Increased support needs—Because HA offerings are inherently complex, a very real need exists to prepare your SAP support organization in how to install it, update it, manage it, and troubleshoot HA issues.

  • To read more about how business requirements relate to high availability, see "Availability Planning—Documenting Requirements and Key Drivers," p. 167 in Chapter 6.

    Disaster Recovery Considerations

    All companies implement a method of addressing Disaster Recovery (DR), whether or not they actually realize it. Even companies that do not add a dedicated DR system to their system landscape address disaster recovery. That is, their de facto disaster recovery plan simply reflects the challenges and timeframes surrounding rebuilding their SAP system from scratch, restoring from their latest tape backup, and imposing upon their end users to manually rekey any new business transactions lost between the last successful tape backup and the point at which the disaster occurred. This doesn't sound like much of a "plan," of course, but it does represent a baseline against which all other disaster recovery approaches and solutions can be weighed.

    A host of DR approaches are discussed throughout Chapter 6, from those involving disk subsystem data replication solutions, to various clustering solutions, to database and mySAP-specific tactics. But when it comes to sifting the potential layout of your SAP system landscape through your solution vision, two general approaches fall out:

    Both approaches are valid, and the first is more traditional. But I believe that the time and expense related to setting up, configuring, keeping current, and managing your own DR system explains the recent increase in outsourcing I've seen over the last two years.

    To review some of the tasks and considerations inherent to addressing DR internally as opposed to outsourcing it, see "SAP General Availability and DR Best Practices," p. 207 in Chapter 6.

    Companies that outsource the DR component of their SAP system landscape help to preserve their data, and access to this data, in that the outsourcer operates a completely independent data center, typically in a very different geographic location. For smaller and mid-size companies with only a single data center, the expense relief is tremendous. On the other hand, if the DR solution is maintained "in-house," so to speak, it will need to be housed in a separate facility. This alone is sure to drive complexity, cost, and even the architecture and makeup of both the SAP system landscape and its individual systems.

    Addressing Training Requirements

    The SAP system landscape is directly impacted by the potential need to train SAP end users as well as the system's developers and technical support staff. Three different systems come into play, as illustrated in Figure 3.5:

  • A dedicated Training system is often implemented to assist in teaching users new to a particular mySAP component how to actually use the system. This amounts to business-process training as well as SAP user interface training (an excellent alternative to creating multiple training clients on the Test system, which is busy fulfilling integration responsibilities prior to Go-Live—the exact time when end users need to be trained!). To provide the most value to its students, the Training system needs to be an exact copy of Production.

  • A dedicated Technical Sandbox system is extremely useful in helping the SAP Technical Support Organization (SAP TSO) get up to speed on the entire SAP Solution Stack, especially with regard to new components and complex HA offerings (rather than attempting to get time on other systems for what could amount to crash-and-burn testing).

  • A dedicated Business Sandbox or Development Sandbox system allows developers unfamiliar with a particular mySAP component, or faced with integrating multiple components and other legacy systems, the opportunity to do so in a pure testing environment (rather than the real Development system).

  • Figure 3.5Figure 3.5 These SAP training systems support the different needs of different organizations, from end users, to developers and programmers, to technical implementation specialists.

    For details as to how the SAP system landscape satisfies the training needs of both the SAP Technical Support Organization and the production system's end users, see "Training and the Role of the SAP System Landscape," p. 314 in Chapter 9.

    It can represent quite a challenge for the "customers" of one of these training systems to convince everyone that such a system is truly required. In my own experience, I have seen the lack of a Technical Sandbox really hurt an organization in terms of downtime due to botched infrastructure upgrades and changes to DR processes.

    Another colleague of mine has more than once had to strongly push for the adoption of a Training system, too. Such a system allows for extensive informal user testing and practice outside of formally delivered training. He believes that this extra level of hands-on self-directed training is critical because your end-user community is best positioned of all groups to find business-process operational errors and limitations. And of course it is desirable to correct these issues well before Go-Live. But a consultant or even a senior super user is typically not positioned to push the adoption and use of a dedicated Training system. More often than not, it takes the SAP Steering Committee, the project's experienced management team, and the prodding of a knowledgeable SAP Solution Architect to do so. I cannot stress this enough—the risk is huge, in that you do not want to find out too late that not every business scenario works as it did during integration testing (for example, all types of contracts, all types of material movements, all kinds of accounting entries, and so on).

    The Performance-Driven System Landscape

    When it comes to evaluating your solution vision against the layout of your SAP system landscape, it is important to ensure that the performance of the systems meets the needs of their different end-user communities. Most of the time, of course, the focus is on designing, installing, and configuring a well-performing Production system. Performance considerations usually relate back to what an end user will experience while on the system, including

  • Business transaction response times, or how long it takes to refresh your SAPGUI after pressing the Enter key, for example.

  • How quickly a background or "batch" job will execute, otherwise known as throughput.

  • How quickly a report or other query will make it through the system and actually be printed, sometimes called latency.

  • To read more about verifying that a Production system can meet performance expectations, see "Key SAP Stress-Testing Considerations," p. 580 in Chapter 16.

    However, these same performance considerations apply to all of the other systems within the SAP system landscape, too. The Development system, for example, needs to exhibit excellent performance even while 25 or 50 or more developers are banging away at keyboards trying to build your custom mySAP solution. Similarly, your Test system needs to provide the performance necessary to get through integration testing. Even the Training system needs to provide adequate user response times so as to make the actual training experience more than something to be avoided.

    High-performance considerations cover the gamut, touching every facet of every system within the landscape. This means that everything—from the performance of the network connecting each system, to each server's CPU, RAM, and disk configuration, to each system's OS, database, and mySAP component—must be addressed. Starting off on the right foot (with properly sized and configured hardware and software elements) is paramount, of course, but tuning all these solution stack pieces to create a cohesive well-running machine is just as important to achieving excellent performance. Like the weakest link in a chain, a single underperforming solution component will only throttle back the maximum performance otherwise obtainable from your system.

    Driving Scalability into Your System Landscape

    The need for scalability, like high availability and excellent performance, is addressed primarily through the sizing process. Scalability does not pay off up front in terms of improved system availability or better user response times, though. Rather, scalability is all about paying for "headroom" in your system, headroom that is not actually needed at present but might be required in the near future. In other words, scalability addresses future planned and unplanned growth in your system.

    This growth can manifest itself in a number of ways. In my experience in the real world, I have seen the results of unplanned growth hurt companies where scalability was never addressed, as in the following cases:

  • The number of end users increased at one of my new accounts, not due to more hiring than was anticipated when their mySAP.com solution was crafted, but because they unexpectedly acquired their competitor and doubled in size. We had six months to project the delta needed in terms of database and application server processing power and RAM requirements, followed by stress-testing the new design and finally implementing it.

  • More than one of my customers' databases grew so fast that they outstripped the results of their comprehensive three-year database sizing methodology in the first year! In most cases, the system we put in place for these customers was scalable—more disk drives could be added, smaller drives could be swapped with larger ones, and so on. In three cases in particular, though, the database growth was so explosive that a whole new disk subsystem platform needed to be brought in, and the recently acquired current platform retired (or redeployed) years earlier than expected.

  • When databases grow quickly, the tape backup/restore solution implemented often grows less effective as well. I have seen this most often in relatively small SAP implementations, where an initial investment in tape backup technology needed to be tossed in favor of tape solutions that backed up more data per tape cartridge, and did so fast enough to not exceed the customer's backup window (time allotted to perform a backup, which usually equates to planned downtime in the case of offline full backups).

  • It's been a while, but I also had a customer outgrow their network, too. Today, with switched networks and Gigabit Ethernet providing more than adequate bandwidth to every mySAP.com server component, and cheap 10- and 100-Megabit Ethernet prevalent across end-user workstations, there's no excuse for lacking network scalability.

  • Outstripping the capabilities of your current system such that a new platform is needed probably represents a worst-case scenario. Not only does the current Production component need to be replaced, but to support sound change control principles, so does the same component in your Test, Staging, and/or Technical Sandbox environments.

    This is why hardware and software vendors tout things like "highly scalable system architectures," "enterprise versions" of particular Operating Systems and Database Systems, and so on—though not necessarily needed up front, the headroom that these approaches provide helps an organization feel more comfortable if they wind up growing faster than they expected. And hardware vendors in particular can position their SAP clients for improved scalability by practicing the following:

  • Specify server platforms that allow additional CPUs and RAM to be added as needed. In other words, avoid "maxing out" the box.

  • Alternatively, design SAP solutions such that they take advantage of SAP's support for horizontal scalability. This is one of my favorite approaches when it comes to SAP Application, Web AS, J2EE middleware, and ITS servers—I prefer to max them out with regard to processors, with the understanding that an incremental number of servers can be added at any time should the environment grow to require it (interestingly, although SAP has successfully tested a system running more than 160 application servers, it is rare to find customer implementations with more than 10 or 12).

  • Architect a solution for the appropriate level of vertical scalability. In other words, if a two-tier "Central System" (where all SAP software components execute on the same physical server) approach to sizing meets today's requirements, perhaps a three-tier solution will provide for unknown scalability requirements. In a three-tiered architecture, one database server and multiple application servers are configured as a single system image.

  • Architect a highly scalable database platform. As my real-world examples earlier in this list illustrate, this tends to be where a lack of scalability causes the most problems.

  • Hardware and software vendors alike spend a great deal of time "proving" how scalable their offerings are. As a first step, I suggest that benchmarks, customer references/feedback, and the results of tests published through white papers and other technical documents be reviewed by prospective mySAP customers. I also suggest that you begin considering new approaches to scalability. For example, HP's iCOD offering touts "capacity on demand." When a customer buys a server, for instance, it is fully populated with CPUs. The customer pays for only what is needed in the near term, however. Later, if it is determined that more processing power is required, the customer takes advantage of the in-place processors by merely applying for a license; no intrusive field upgrade or service call is required and therefore the need for planned downtime is drastically reduced.

    The TCO-Driven System Landscape

    More than anything else, Total Cost of Ownership (TCO) drives what a solution vision actually looks like at the end of the day, when a mySAP solution is implemented and really being used. Discussions on TCO might instead be labeled Return on Investment (ROI), or might fall under the heading of investment protection. Regardless, a focus on lowering TCO seeks to find less expensive solution-stack alternatives that still meet the needs of the business.

    To read more about the relationship between TCO and your SAP solution vision, see "How the SAP Solution Vision Drives TCO," p. 127 in Chapter 5.

    When all other things are equal, the following points apply from a hardware perspective:

  • A hardware vendor's use of common components like CPUs and memory boards allows flexible sharing of resources between different SAP system landscapes and in some cases hardware platforms, too.

  • Similarly, common disk drive form factors reduce cost of ownership by increasing reusability.

  • Support for hot-pluggable and/or hot-add hardware components eliminates or worst-case minimizes downtime (can include hard drives, tape drives, power supplies, fans, and even RAM and processors).

  • Support for redundant components, like power supplies, disk drives, fans, and so on, also eliminates or minimizes downtime.

  • The ability to run mixed-speed CPUs or RAM in a particular platform protects that investment—CPUs and RAM do not have to be tossed aside when additional processing power or memory is required.

  • Outsourcing your entire SAP infrastructure/operations team is another potential method of reducing TCO. In fact, outsourcing can represent the biggest potential TCO factor that a company will consider. At this level, though, outsourcing becomes more of a strategic business solution that impacts a lot more than simply TCO. True, outsourcing can cut labor costs by 50%, and enhance flexibility of a technical support organization to easily change as business requirements change, but there are drawbacks and disadvantages as well (discussed later in this chapter).

    Another solution vision approach that impacts the SAP system landscape from both a configuration and TCO perspective is the use of an Application Service Provider (ASP). ASPs can drive lower TCO by virtue of their application-specific expertise, above and beyond that provided by in-house staff and traditional outsourcing providers. For example:

  • An ASP can offer a preconfigured solution stack for the particular mySAP solution you want to implement. This is one reason why they look so good from a TCO perspective—design, deployment, manageability, operations, and other cost factors are substantially reduced due to a high level of both standardization and core competencies in the services they provide.

  • ASPs were more or less born out of the dot-com era, and by virtue of this, their data centers enjoy the benefit of fat redundant pipes to the Internet. Thus, mySAP.com applications are well positioned to take advantage of this flexible and powerful accessibility option.

  • ASPs offer interesting financing alternatives, in that they partner with various SAP technology partners to make leasing, pay-as-you-go, and other payment methods available.

  • The ASP provider market shrank over the last few years. The mySAP-focused companies that weathered these hard times seem even better prepared and well-positioned to host SAP solutions, however.

    Security Considerations

    I know of no company that does not envision protecting its corporate computing assets. From a solution-stack security perspective, not all software vendors are created equal, however. Oracle touts its unbreakable database, UNIX vendors tout the robust security features of their operating environments, and so on. In my eyes, security features are very important, but good security is more often about managing and testing changes to a solution stack, by carefully identifying security holes and other weaknesses in new solution stack components before these components ever find themselves in Production.

    However, companies that embrace and act upon the idea of protecting computing assets will prove to be better partners in the long run. This is why I believe that Oracle's focus on security will pay big dividends in terms of slowing the adoption of competing databases. And it is why I believe that the Trusted PC joint Intel, AMD, and Microsoft vision (once labeled by Microsoft as Palladium, and now referred to as the "next-generation secure computing base for Windows") will prove fruitful as well. Its goal is to build security into servers and PCs at a microprocessor level. New initiatives coming out of the Trusted Computing Platform Alliance promise to better secure our processing platforms, ensuring that only authorized applications and program executables can ever be executed by the system, and that all data housed on the system is encrypted so that it is useless to others. To this end, Microsoft considers Trusted PC a significant part of its Trustworthy Computing strategy—we should see something commercially available in this regard by 2004 that applies to server as well as desktop and other computing platforms.

    Manageability Considerations

    No customers of mine have ever started their initial SAP implementation planning discussions with me by saying:

    "George, all that high-availability and performance stuff is fine, but what we really want is a nice manageable system. Can you do that for us?"

    By the time Go-Live looms just over the horizon, though, every single one of them—without exception—has indicated a growing concern for manageability. Sure, it's there on the project plan, and any number of products can be used to support managing your mySAP environment. But the whole field of manageability is more complex and more work than you would imagine. Consider the following:

  • Each layer in the SAP Solution Stack must be managed; the risk of not keeping an eye on a particular layer or solution component affects the uptime of the entire system.

  • Because each layer is so different from the others, it's nearly impossible to find a single management product that can actually monitor and report on more than a few layers, much less the entire stack.

  • Therefore, the next best thing becomes trying to find a product that can at least interoperate successfully with other products.

  • At the end of the day, three, four, or even more tools and utilities must ultimately be fused together to provide a holistic view of a mySAP solution stack. This is challenging, to say the least!

  • To learn exactly how challenging piecing together a management approach can be, see "Systems Management Techniques for SAP," p. 511 in Chapter 14.

    Because of the challenges inherent to managing hardware and software products from a lot of different solution stack vendors, some of my customers have purposely chosen less than "best-of-breed" products for their SAP solutions, so as to minimize the number of software partners involved. Or they have decided to reduce the number of partners and vendors altogether by selecting one of the big enterprise hardware/services vendors. The obvious partners are clear—HP, IBM, and Sun. For example, if you go with HP and choose to implement an rp8400-based server platform with an HP StorageWorks SAN, running HP-UX 11i, and managed by HP OpenView, the challenges inherent to managing four different vendors' products just dropped tremendously. Similar arguments could be made for going with an IBM or Sun solution stack, too—IBM even throws a couple of databases into the mix.

    The System Landscape and Accessibility

    The last area I want to cover with regard to solution vision and the SAP system landscape is accessibility. Many companies over the last three or four years have started with a vision of dumping all application-specific interfaces in favor of browser-enabled solutions, so as to ease the burdens and costs associated with desktop/laptop management while opening up new accessibility approaches like hand-helds and other wireless devices. SAP has supported that vision since 1996, with the advent of Internet connectivity in R/3 3.1G. But only in the last few years have I really seen this take off.

    SAP AG offers quite a few accessibility options today when it comes to mySAP solutions. The classic SAPGUI and its revamped and more capable EnjoySAP SAPGUI represent one end of the spectrum. This approach is safe, very mainstream, and very easy to implement. And the SAPGUI we have today is extremely comprehensive, supporting all mySAP components through a single interface, which is unlike the approach a few years ago where each so-called "New Dimension" product like BW or APO required its own GUI. But the SAPGUI still represents a typical application-specific approach to accessibility; each end user installs the client on their desktop or laptop, or runs the SAPGUI from a network share, and off they go.

    Other accessibility approaches are available, however, as you see in Figure 3.6. The original WebGUI, for example, is based on HTML and provides connectivity via Microsoft's Internet Explorer and so on. And a more recent addition, the JavaGUI, allows native Java-based access to SAP. Both of these approaches fulfill an Internet-based approach to connectivity, and subsequently simplify the desktop (assuming Internet connectivity is a standard desktop offering at your particular company, of course).

    Figure 3.6Figure 3.6 Access to mySAP solutions is quite varied today, ranging from classic and updated SAPGUI options to newer Web-enabled versions.



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