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000-674 xSeries - Windows 2000 Installation/Performance Optimization

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000-674 exam Dumps Source : xSeries - Windows 2000 Installation/Performance Optimization

Test Code : 000-674
Test Name : xSeries - Windows 2000 Installation/Performance Optimization
Vendor Name : IBM
: 68 Real Questions

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IBM xSeries - Windows 2000

IBM Presses forward with Scale-Out Benchmark on Datacenter | killexams.com Real Questions and Pass4sure dumps

information

IBM Presses forward with Scale-Out Benchmark on Datacenter
  • by using Scott Bekker
  • 03/26/2001
  • IBM Corp. now tops the Transaction Processing efficiency Council's ( TPC ) OLTP benchmark performance listing with 688,220 transactions per minute on the TPC-C benchmark (tpmC).

    IBM ran home windows 2000 Datacenter Server and SQL Server 2000 on 32 of its new eight-processor IBM eServer xSeries 370 servers, which have been unveiled on Friday. IBM additionally ran a junior edition of the look at various -- the equal configuration with 16 nodes and a yield of 363,129 tpmC.

    Analyst Tom Manter of the Aberdeen community calls the effects staggering.

    "IBM has taken loads of their event and know-how from the excessive-conclusion mainframe programs and midrange systems and introduced that down into their xSeries. We're starting to see one of the vital results and that they're very high-quality and extraordinary," Manter says.

    The outcomes are entertaining for 2 causes. they are the first clustered results run using home windows 2000 Datacenter Server. They additionally signify a departure for IBM Corp. in using Microsoft's SQL database instead of IBM's own DB2.

    Jay Bretzmann, IBM's supervisor of product advertising for the xSeries, calls the database determination an "openness issue."

    "ultimate time they used DB2. next time they might also use DB2 once again. They don't want to seem like a one database corporation," Bretzmann says.

    Manter says one rationale IBM might also have switched databases changed into to get Microsoft's support. Microsoft issued a information release Monday morning promotion IBM's outcomes, but Redmond changed into in most cases silent over the summer when IBM produced what became then a record benchmark on windows 2000 superior Server using DB2.

    IBM's present configuration used 256 of Intel's newest Xeon processor, the 900 MHz released ultimate week.

    The right influence places IBM forward of Compaq's 505,302 tpmC from October for the #1 spot. Compaq and IBM had been playing leapfrog with the scale-out programs considering Compaq and Microsoft teamed on the first windows 2000 scale-out influence in February 2000.

    those clustered systems have been controversial, spurring the TPC to create a new division in the means it publishes its effects: one record for clustered effects, one for non-clustered outcomes. not one of the providers -- Microsoft, IBM and Compaq -- has pushed ahead a reference consumer who is imposing their clustered databases yet, besides the fact that children Microsoft elements out that Tandem shoppers were the usage of clustered programs for years.

    The expense performance of $28.89/tmpC works out to a total system charge of $19,884,668. it truly is just about twice the $10 million of the 2d place Compaq gadget ($19.ninety eight/tpmC) and appreciably greater than the very nearly $12 million fee tag of the highest ranking non-clustered equipment on the record, Fujitsu's seventh-ranked PrimePower 2000 that hits 222,772 tpmC ($50.34/tpmC).

    The rate performance compared with Compaq's outcomes stems partly from the use of Datacenter Server as adverse to advanced Server. The hardened Datacenter OS fees extra and ought to at all times consist of a service component.

    IBM's examine techniques are scheduled for availability in late may also. --

    in regards to the writer

    Scott Bekker is editor in chief of Redmond Channel companion magazine.


    IBM shows its Hand in high-end windows Hardware | killexams.com Real Questions and Pass4sure dumps

    information

    IBM shows its Hand in excessive-conclusion home windows Hardware
  • by means of Scott Bekker
  • 03/26/2001
  • IBM Corp. had been the lone holdout amongst essential OEMs from a signing a deal to resell Unisys' massive 32-processor servers constructed for windows 2000 Datacenter Server. Now IBM has shown why it waited.

    large Blue unveiled its IBM eServer xSeries 430 on Friday, a 64-processor NUMA gadget constructed for 32-bit Intel processors. The methods, an outgrowth of the NUMA-Q line IBM got 18 months in the past when it purchased Sequent computer programs, help Linux and mainframe purposes immediately. they'll begin supporting Datacenter Server in the Whistler timeframe. Microsoft presently says its Whistler servers will doubtless ship within the fourth quarter.

    Ian Miller, vice chairman for advertising of the eServer xSeries, says that over time windows and Whistler signify the biggest single marketplace for the xSeries 430. For now, IBM executives don't consider they may be lacking an enormous probability by now not having stronger-than-eight-processor hardware attainable for home windows 2000 Datacenter Server.

    "The scalability that windows has at this aspect in terms of in fact becoming to a full 32-processor gadget, there are limitations in how some distance that you could go," Miller says. IBM will point clients to scaling out on their new eight-processor servers, the IBM eServer xSeries 370. "i would argue that the x370, frankly, represents an improved expense-performance message for the home windows Datacenter market than the CMP machine," Miller says.

    Analyst Tom Manter with the Aberdeen group says IBM will ought to reveal compelling cost to compete efficiently within the Datacenter market with the x430.

    "these days you have got a Unisys CMP gadget, which is being offered via all the principal suppliers except for IBM. they've a chance to set up a de facto average. Then IBM goes to have quite a challenge when Whistler server comes out three hundred and sixty five days later to then come into the industry with a unique architecture," Manter says.

    however Manter is in no way writing IBM off: "They've stunned us during the past, too."

    Unisys faces challenges of its personal in holding its CMP coalition collectively. enterprise executives are already merchandising the subsequent generation of the mobile MultiProcessing architecture to preserve companions committed. but agencies with their own R&D operations like Compaq and Hewlett-Packard might also choose to increase their own architectures. --

    in regards to the creator

    Scott Bekker is editor in chief of Redmond Channel companion magazine.


    IBM Servers: a little additional | killexams.com Real Questions and Pass4sure dumps

    IBM's servers are worth paying greater for, some say, since it has main technology and repair; others grumble that large Blue runs like a forms.

    IBM receives nods of approval for Intel-primarily based servers designed with a eager eye for engineering element, although its methods are usually pricier than opponents'.

    The important Bucks school District in Doylestown, Pa., swapped out Compaq servers two years ago in want of IBM's. Ray Kase, the district's director of guidance know-how, says his team evaluated IBM and Hewlett-Packard. The figuring out components, he says: IBM provided more suitable integration between the servers and its own FastT networked storage systems, and the enterprise appeared extra technically astute.

    View the PDF -- turn off pop-up blockers!

    "We felt very decent concerning the adventure they had with the IBM engineers," he says. "They have been really trying to get to know their environment, asking very specific questions." Kase says the district's 46 IBM servers have had "very nearly no downtime, and they have 25,000 college students and college who hammer those programs pretty decent."

    but some grumble that large Blue nevertheless services like an impenetrable forms. it be now and again challenging to locate the correct individuals at a corporation with about as many personnel (319,273 eventually count) as the population of Tampa, Fla. "there have been a few instances after I needed to scream at a person to get service," says André Mendes, chief expertise integration officer at the Public Broadcasting service, which become an early adopter of IBM's BladeCenter. provides a precise suggestions-technology government at a Fortune 500 business, who asked not to be identified: "coping with IBM is like dealing with the IRS. they're totally unresponsive."

    no longer everybody consents with such assessments. really, IBM's highly responsive service places it ahead of opponents, says Brendan Carlton, methods supervisor at the U.S. division of Huhtamaki, a Finnish packaging business. Huhtamaki's servers, as an example, are installation to alert IBM of impending hardware disasters. "a couple of times I've come into the office and there's an IBM guy there with a alternative tough force," Carlton says. "and i failed to even understand I had an issue." As for pricing, he allows for that IBM is always "a little bit additional. however i would somewhat pay extra as a result of IBM service is 2d to none."

    in the meantime, Leo Hurtado, CIO of furnishings retailer W.S. Badcock, which operates 330 outlets within the southeastern U.S., says the IBM servers his company purchased remaining 12 months were below 10% greater expensive than those from Dell or HP: "We're very satisfied with the cost element."

    IBMNew Orchard Rd.,Armonk, the big apple 10504(914) 499-1900www.ibm.com/servers

    Ticker: IBM (NYSE)

    personnel: 319,273

    invoice ZeitlerSenior VP & community executive, systems GroupThe IBM lifer (he joined the enterprise in 1969 as a programmer) was put in cost of all storage and server products in January 2003.

    Susan M. WhitneyGeneral manager, eServer xSeriesResponsible for Intel-based server development, revenue, advertising and manufacturing businesses.

    ProductsThe xSeries includes x200 servers (as much as 4 processors each and every), purchasable as towers or in rack-mountable chassis; x300 servers designed for information centers; and the x445, available with up to 32 processors. BladeCenter methods can fit up to eighty four two-processor server blades in a 7-foot rack. administration software contains Director, which tracks hardware configuration of remote programs and monitors add-ons equivalent to processors and disks.

    Cendant go back and forth Distribution ServicesRobert WisemanCTOrobert.wiseman@cendant.comProject: commute-services enterprise ultimate yr migrated its fare-pricing gadget from an IBM mainframe to about one hundred xSeries servers.

    primary Bucks school DistrictRay KaseDir., I.T.(267) 893-2100Project: The 24-faculty district in Pennsylvania spent about $250,000 in 2002 for 16 x300-collection servers, plus 1.eight terabytes of storage. It now runs 46 servers, together with a BladeCenter gadget with 14 server blades.

    HuhtamakiBrendan CarltonSystems manager(913) 583-8744Project: Finnish packaging business's U.S. division, based mostly in De Soto, Kan., runs about sixty five xSeries home windows 2000 servers in 10 plant life and distribution centers.

    J&B GroupKurt AndersonVP, I.T.(763) 497-3913Project: Wholesale meals distributor this yr changed seven Dell servers with an IBM x400 eight-processor device working Microsoft's trade and SQL Server, and other applications.

    W.S. BadcockLeo HurtadoVP, I.T. & CIO(863) 425-7527Project: furniture retailer in Mulberry, Fla., consolidated applications on 47 servers—provided by way of eight different companies—onto 16 IBM xSeries techniques.

    Asian artwork Museum of san franciscoJames HorioDir., I.T.(415) 581-3580Project: Museum runs eight xSeries server blades running windows 2000 in a single AS/four hundred-primarily based iSeries midrange device. Three standalone xSeries servers run an online Protocol telephony device from Cisco techniques.

    Executives listed listed below are all users of IBM's items. Their willingness to talk has been proven by Baseline.

    2004YTD 2003 2002 income $forty five.40B $89.13B $eighty one.19B Gross margin 36.4% 37.0% 37.three% working income $5.13B $10.09B $6.80B internet revenue $3.59B $7.58B $three.58B net margin 7.9% 8.5% 4.4% revenue per share $2.08 $four.32 $2.06 R&D expenditure $2.79B $5.08B $four.75B

    * Fiscal 12 months ends Dec. 31; YTD reflects first six monthsSource: company stories

    other Financials**

    total property - $ninety nine.58BStockholders' fairness - $28.83BCash and equivalents - $7.72BLong-time period debt - $14.42BShares extraordinary - 1.71BMarket value as of eight/25 - $142.51B

    **As of June 30, 2004, apart from as noted


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    (Family Features) Enhancing your home’s energy-efficient features is a savvy way to make the space more livable while also making a smaller impact on the environment and your bank account.

    The U.S. Department of Energy estimates that the average American homeowner spends about $2,000 a year on energy for heating, cooling and other power needs throughout the house. However, inefficiencies caused by poorly operating systems, drafts and other energy drains may account for as much as 10-20 percent of wasted money each year.

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    Windows

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    If you add new windows, there are several variables to consider. Generally, the goal is to optimize heat gain during colder months and reduce heat gain in the summer. Energy performance ratings can help you understand how particular windows transfer heat and light so you can make the best choices for your home’s location, including the climate and orientation to the sun.

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    Like windows, doors, and especially their perimeters, are a common source of lost energy. Poor insulation due to faulty installation or simply wear over time can contribute to energy loss.

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    An often overlooked home element, but one homeowners and interior designers are increasingly turning attention to, is the ceiling, affectionately dubbed the “fifth wall.” Not only does this surface offer a blank slate for introducing new style to a room, it’s also an ideal space to integrate energy-efficient features such as skylights.

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    Skylights engage all of the senses while providing balanced, natural light that reduces reliance on powered light and ventilation fixtures. In addition, skylights can work in concert with vertical windows to create the “chimney effect” where cool, fresh air enters through vertical windows and warm, stale air escapes from the skylights, cooling your home without using electricity.

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    Climate control accounts for as much as half of the average home’s annual energy costs, so while it’s a behind-the-scenes home feature, it’s an important one.

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    A consultation with a certified technician can help you determine the right system for your home, as well as supplemental heating and cooling options like attic fans that can reduce your overall energy reliance.

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    Keep in mind that leaks and cracks represent a substantial volume of lost energy, and even after windows and doors are sealed there are still plenty of places for air leaks to occur.

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    If you’re uncertain about where improvements may be necessary to increase your home’s energy efficiency, an energy audit is a good place to start. Learn more about how to evaluate your home, including which assessments you can tackle alone and what areas may require expert advice, at energy.gov.


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    COMPUTINGFrom...Network World Fusion networking

    January 24, 2000Web posted at: 12:11 p.m. EST (1711 GMT)

    by John Bass and James Robinson, Network World Test Alliance

    (IDG) -- It all boils down to what you're looking for in a network operating system (NOS).

    Do you want it lean and flexible so you can install it any way you please? Perhaps administration bells and management whistles are what you need so you can deploy several hundred servers. Or maybe you want an operating system that's robust enough so that you sleep like a baby at night?

    The good news is that there is a NOS waiting just for you. After the rash of recent software revisions, they took an in-depth look at four of the major NOSes on the market: Microsoft's Windows 2000 Advanced Server, Novell's NetWare 5.1, Red Hat Software's Linux 6.1 and The Santa Cruz Operation's (SCO) UnixWare 7.1.1. Sun declined their invitation to submit Solaris because the company says it's working on a new version.

    Microsoft's Windows 2000 edges out NetWare for the Network World Blue Ribbon Award. Windows 2000 tops the field with its management interface, server monitoring tools, storage management facilities and security measures.

    However, if it's performance you're after, no product came close to Novell's NetWare 5.1's numbers in their exhaustive file service and network benchmarks. With its lightning-fast engine and Novell's directory-based administration, NetWare offers a great base for an enterprise network.

    We found the latest release of Red Hat's commercial Linux bundle led the list for flexibility because its modular design lets you pare down the operating system to suit the task at hand. Additionally, you can create scripts out of multiple Linux commands to automate tasks across a distributed environment.

    While SCO's UnixWare seemed to lag behind the pack in terms of file service performance and NOS-based administration features, its scalability features make it a strong candidate for running enterprise applications.

    The numbers are in

    Regardless of the job you saddle your server with, it has to perform well at reading and writing files and sending them across the network. They designed two benchmark suites to measure each NOS in these two categories. To reflect the real world, their benchmark tests consider a wide range of server conditions.

    NetWare was the hands-down leader in their performance benchmarking, taking first place in two-thirds of the file tests and earning top billing in the network tests.

    Red Hat Linux followed NetWare in file performance overall and even outpaced the leader in file tests where the read/write loads were small. However, Linux did not perform well handling large loads - those tests in which there were more than 100 users. Under heavier user loads, Linux had a tendency to stop servicing file requests for a short period and then start up again.

    Windows 2000 demonstrated poor write performance across all their file tests. In fact, they found that its write performance was about 10% of its read performance. After consulting with both Microsoft and Client/Server Solutions, the author of the Benchmark Factory testing tool they used, they determined that the poor write performance could be due to two factors. One, which they were unable to verify, might be a possible performance problem with the SCSI driver for the hardware they used.

    More significant, though, was an issue with their test software. Benchmark Factory sends a write-through flag in each of its write requests that is supposed to cause the server to update cache, if appropriate, and then force a write to disk. When the write to disk occurs, the write call is released and the next request can be sent.

    At first glance, it appeared as if Windows 2000 was the only operating system to honor this write-through flag because its write performance was so poor. Therefore, they ran a second round of write tests with the flag turned off.

    With the flag turned off, NetWare's write performance increased by 30%. This test proved that Novell does indeed honor the write-through flag and will write to disk for each write request when that flag is set. But when the write-through flag is disabled, NetWare writes to disk in a more efficient manner by batching together contiguous blocks of data on the cache and writing all those blocks to disk at once.

    Likewise, Red Hat Linux's performance increased by 10% to 15% when the write-through flag was turned off. When they examined the Samba file system code, they found that it too honors the write-through flag. The Samba code then finds an optimum time during the read/write sequence to write to disk.

    This second round of file testing proves that Windows 2000 is dependent on its file system cache to optimize write performance. The results of the testing with the write-through flag off were much higher - as much as 20 times faster. However, Windows 2000 still fell behind both NetWare and RedHat Linux in the file write tests when the write-through flag was off.

    SCO honors the write-through flag by default, since its journaling file system is constructed to maximize data integrity by writing to disk for all write requests. The results in the write tests with the write-through flag on were very similar to the test results with the write-through flag turned off.

    For the network benchmark, they developed two tests. Their long TCP transaction test measured the bandwidth each server can sustain, while their short TCP transaction test measured each server's ability to handle large numbers of network sessions with small file transactions.

    Despite a poor showing in the file benchmark, Windows 2000 came out on top in the long TCP transaction test. Windows 2000 is the only NOS with a multithreaded IP stack, which allows it to handle network requests with multiple processors. Novell and Red Hat say they are working on integrating this capability into their products.

    NetWare and Linux also registered strong long TCP test results, coming in second and third, respectively.

    In the short TCP transaction test, NetWare came out the clear winner. Linux earned second place in spite of its lack of support for abortive TCP closes, a method by which an operating system can quickly tear down TCP connections. Their testing software, Ganymede Software's Chariot, uses abortive closes in its TCP tests.

    Moving into management

    As enterprise networks grow to require more servers and support more end users, NOS management tools become crucial elements in keeping networks under control. They looked at the management interfaces of each product and drilled down into how each handled server monitoring, client administration, file and print management, and storage management.

    We found Windows 2000 and NetWare provide equally useful management interfaces.

    Microsoft Management Console (MMC) is the glue that holds most of the Windows 2000 management functionality together. This configurable graphical user interface (GUI) lets you snap in Microsoft and third-party applets that customize its functionality. It's a two-paned interface, much like Windows Explorer, with a nested list on the left and selection details on the right. The console is easy to use and lets you configure many local server elements, including users, disks, and system settings such as time and date.

    MMC also lets you implement management policies for groups of users and computers using Active Directory, Microsoft's new directory service. From the Active Directory management tool inside MMC, you can configure users and change policies.

    The network configuration tools are found in a separate application that opens when you click on the Network Places icon on the desktop. Each network interface is listed inside this window. You can add and change protocols and configure, enable and disable interfaces from here without rebooting.

    NetWare offers several interfaces for server configuration and management. These tools offer duplicate functionality, but each is useful depending from where you are trying to manage the system. The System Console offers a number of tools for server configuration. One of the most useful is NWConfig, which lets you change start-up files, install system modules and configure the storage subsystem. NWConfig is simple, intuitive and predictable.

    ConsoleOne is a Java-based interface with a few graphical tools for managing and configuring NetWare. Third-party administration tools can plug into ConsoleOne and let you manage multiple services. They think ConsoleOne's interface is a bit unsophisticated, but it works well enough for those who must have a Windows- based manager.

    Novell also offers a Web-accessible management application called NetWare Management Portal, which lets you manage NetWare servers remotely from a browser, and NWAdmin32, a relatively simple client-side tool for administering Novell Directory Services (NDS) from a Windows 95, 98 or NT client.

    Red Hat's overall systems management interface is called LinuxConf and can run as a graphical or text-based application. The graphical interface, which resembles that of MMC, works well but has some layout issues that make it difficult to use at times. For example, when you run a setup application that takes up a lot of the screen, the system resizes the application larger than the desktop size.

    Still, you can manage pretty much anything on the server from LinuxConf, and you can use it locally or remotely over the Web or via telnet. You can configure system parameters such as network addresses; file system settings and user accounts; and set up add-on services such as Samba - which is a service that lets Windows clients get to files residing on a Linux server - and FTP and Web servers. You can apply changes without rebooting the system.

    Overall, Red Hat's interface is useful and the underlying tools are powerful and flexible, but LinuxConf lacks the polish of the other vendors' tools.

    SCO Admin is a GUI-based front end for about 50 SCO UnixWare configuration and management tools in one window. When you click on a tool, it brings up the application to manage that item in a separate window.

    Some of SCO's tools are GUI-based while others are text-based. The server required a reboot to apply many of the changes. On the plus side, you can manage multiple UnixWare servers from SCOAdmin.

    SCO also offers a useful Java-based remote administration tool called WebTop that works from your browser.

    An eye on the servers and clients

    One important administration task is monitoring the server itself. Microsoft leads the pack in how well you can keep an eye on your server's internals.

    The Windows 2000 System Monitor lets you view a real-time, running graph of system operations, such as CPU and network utilization, and memory and disk usage. They used these tools extensively to determine the effect of their benchmark tests on the operating system. Another tool called Network Monitor has a basic network packet analyzer that lets you see the types of packets coming into the server. Together, these Microsoft utilities can be used to compare performance and capacity across multiple Windows 2000 servers.

    NetWare's Monitor utility displays processor utilization, memory usage and buffer utilization on a local server. If you know what to look for, it can be a powerful tool for diagnosing bottlenecks in the system. Learning the meaning of each of the monitored parameters is a bit of a challenge, though.

    If you want to look at performance statistics across multiple servers, you can tap into Novell's Web Management Portal.

    Red Hat offers the standard Linux command-line tools for monitoring the server, such as iostat and vmstat. It has no graphical monitoring tools.

    As with any Unix operating system, you can write scripts to automate these tools across Linux servers. However, these tools are typically cryptic and require a high level of proficiency to use effectively. A suite of graphical monitoring tools would be a great addition to Red Hat's Linux distribution.

    UnixWare also offers a number of monitoring tools. System Monitor is UnixWare's simple but limited GUI for monitoring processor and memory utilization. The sar and rtpm command-line tools together list real-time system utilization of buffer, CPUs and disks. Together, these tools give you a good overall idea of the load on the server.

    Client administration

    Along with managing the server, you must manage its users. It's no surprise that the two NOSes that ship with an integrated directory service topped the field in client administration tools.

    We were able to configure user permissions via Microsoft's Active Directory and the directory administration tool in MMC. You can group users and computers into organizational units and apply policies to them.

    You can manage Novell's NDS and NetWare clients with ConsoleOne, NWAdmin or NetWare Management Portal. Each can create users, manage file space, and set permissions and rights. Additionally, NetWare ships with a five-user version of Novell's ZENworks tool, which offers desktop administration services such as hardware and software inventory, software distribution and remote control services.

    Red Hat Linux doesn't offer much in the way of client administration features. You must control local users through Unix permission configuration mechanisms.

    UnixWare is similar to Red Hat Linux in terms of client administration, but SCO provides some Windows binaries on the server to remotely set file and directory permissions from a Windows client, as well as create and change users and their settings. SCO and Red Hat offer support for the Unix-based Network Information Service (NIS). NIS is a store for network information like logon names, passwords and home directories. This integration helps with client administration.

    Handling the staples: File and print

    A NOS is nothing without the ability to share file storage and printers. Novell and Microsoft collected top honors in these areas.

    You can easily add and maintain printers in Windows 2000 using the print administration wizard, and you can add file shares using Active Directory management tools. Windows 2000 also offers Distributed File Services, which let you combine files on more than one server into a single share.

    Novell Distributed Print Services (NDPS) let you quickly incorporate printers into the network. When NDPS senses a new printer on the network, it defines a Printer Agent that runs on the printer and communicates with NDS. You then use NDS to define the policies for the new printer.

    You define NetWare file services by creating and then mounting a disk volume, which also manages volume policies.

    Red Hat includes Linux's printtool utility for setting up server-connected and networks printers. You can also use this GUI to create printcap entries to define printer access.

    Linux has a set of command-line file system configuration tools for mounting and unmounting partitions. Samba ships with the product and provides some integration for Windows clients. You can configure Samba only through a cryptic configuration ASCII file - a serious drawback.

    UnixWare provides a flexible GUI-based printer setup tool called Printer SetUp Manager. For file and volume management, SCO offers a tool called VisionFS for interoperability with Windows clients. They used VisionFS to allow their NT clients to access the UnixWare server. This service was easy to configure and use.

    Storage management

    Windows 2000 provides the best tools for storage management. Its graphical Manage Disks tool for local disk configuration includes software RAID management; you can dynamically add disks to a volume set without having to reboot the system. Additionally, a signature is written to each of the disks in an array so that they can be moved to another 2000 server without having to configure the volume on the new server. The new server recognizes the drives as members of a RAID set and adds the volume to the file system dynamically.

    NetWare's volume management tool, NWConfig, is easy to use, but it can be a little confusing to set up a RAID volume. Once they knew what they were doing, they had no problems formatting drives and creating a RAID volume. The tool looks a little primitive, but they give it high marks for functionality and ease of use.

    Red Hat Linux offers no graphical RAID configuration tools, but its command line tools made RAID configuration easy.

    To configure disks on the UnixWare server, they used the Veritas Volume Manager graphical disk and volume administration tool that ships with UnixWare. They had some problems initially getting the tool to recognize the drives so they could be formatted. They managed to work around the disk configuration problem using an assortment of command line tools, after which Volume Manager worked well.

    Security

    While they did not probe these NOSes extensively to expose any security weaknesses, they did look at what they offered in security features.

    Microsoft has made significant strides with Windows 2000 security. Windows 2000 supports Kerberos public key certificates as its primary authentication mechanism within a domain, and allows additional authentication with smart cards. Microsoft provides a Security Configuration Tool that integrates with MMC for easy management of security objects in the Active Directory Services system, and a new Encrypting File System that lets you designate volumes on which files are automatically stored using encryption.

    Novell added support for a public-key infrastructure into NetWare 5 using a public certificate schema developed by RSA Security that lets you tap into NDS to generate certificates.

    Red Hat offers a basic Kerberos authentication mechanism. With Red Hat Linux, as with most Unix operating systems, the network services can be individually controlled to increase security. Red Hat offers Pluggable Authentication Modules as a way of allowing you to set authentication policies across programs running on the server. Passwords are protected with a shadow file. Red Hat also bundles firewall and VPN services.

    UnixWare has a set of security tools called Security Manager that lets you set up varying degrees of intrusion protection across your network services, from no restriction to turning all network services off. It's a good management time saver, though you could manually modify the services to achieve the same result.

    Stability and fault tolerance

    The most feature-rich NOS is of little value if it can't keep a server up and running. Windows 2000 offers software RAID 0, 1 and 5 configurations to provide fault tolerance for onboard disk drives, and has a built-in network load-balancing feature that allows a group of servers to look like one server and share the same network name and IP address. The group decides which server will service each request. This not only distributes the network load across several servers, it also provides fault tolerance in case a server goes down. On a lesser scale, you can use Microsoft's Failover Clustering to provide basic failover services between two servers.

    As with NT 4.0, Windows 2000 provides memory protection, which means that each process runs in its own segment.

    There are also backup and restore capabilities bundled with Windows 2000.

    Novell has an add-on product for NetWare called Novell Cluster Services that allows you to cluster as many as eight servers, all managed from one location using ConsoleOne, NetWare Management Portal or NWAdmin32. But Novell presently offers no clustering products to provide load balancing for applications or file services. NetWare has an elaborate memory protection scheme to segregate the memory used for the kernel and applications, and a Storage Management Services module to provide a highly flexible backup and restore facility. Backups can be all-inclusive, cover parts of a volume or store a differential snapshot.

    Red Hat provides a load-balancing product called piranha with its Linux. This package provides TCP load balancing between servers in a cluster. There is no hard limit to the number of servers you can configure in a cluster. Red Hat Linux also provides software RAID support through command line tools, has memory protection capabilities and provides a rudimentary backup facility.

    SCO provides an optional feature to cluster several servers in a load-balancing environment with Non-Stop Clustering for a high level of fault-tolerance. Currently, Non-Stop Clustering supports six servers in a cluster. UnixWare provides software RAID support that is managed using SCO's On-Line Data Manager feature. All the standard RAID levels are supported. Computer Associates' bundled ArcServeIT 6.6 provides backup and restore capabilities. UnixWare has memory protection capabilities.

    Documentation

    Because their testing was conducted before Windows 2000's general availability ship date, they were not able to evaluate its hard-copy documentation. The online documentation provided on a CD is extensive, useful and well-organized, although a Web interface would be much easier to use if it gave more than a couple of sentences at a time for a particular help topic.

    NetWare 5 comes with two manuals: a detailed manual for installing and configuring the NOS with good explanations of concepts and features along with an overview of how to configure them, and a small spiral-bound booklet of quick start cards. Novell's online documentation is very helpful.

    Red Hat Linux comes with three manuals - an installation guide, a getting started guide and a reference manual - all of which are easy to follow.

    Despite being the most difficult product to install, UnixWare offers the best documentation. It comes with two manuals: a system handbook and a getting started guide. The system handbook is a reference for conducting the installation of the operating system. It does a good job of reflecting this painful experience. The getting started guide is well-written and well-organized. It covers many of the tools needed to configure and maintain the operating system. SCO's online documentation looks nice and is easy to follow.

    Wrapping up

    The bottom line is that these NOSes offer a wide range of characteristics and provide enterprise customers with a great deal of choice regarding how each can be used in any given corporate network.

    If you want a good, general purpose NOS that can deliver enterprise-class services with all the bells and whistles imaginable, then Windows 2000 is the strongest contender. However, for high performance, enterprise file and print services, their tests show that Novell leads the pack. If you're willing to pay a higher price for scalability and reliability, SCO UnixWare would be a safe bet. But if you need an inexpensive alternative that will give you bare-bones network services with decent performance, Red Hat Linux can certainly fit the bill.

    The choice is yours.

    Bass is the technical director and Robinson is a senior technical staff member at Centennial Networking Labs (CNL) at North Carolina State University in Raleigh. CNL focuses on performance, capacity and features of networking and server technologies and equipment.

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    Fusion's Forum: Square off with the vendors over who has the best NOS(Network World Fusion)How they did it: Details of the testing(Network World Fusion)Find out the tuning parameters(Network World Fusion)Download the Config files(Network World Fusion)The Shootout results(Network World Fusion)Fusion's NOS resources(Network World Fusion)With Windows 2000, NT grows up(Network World Fusion)Fireworks expected at NOS showdown(Network World Fusion)

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    Windows Server 2008 R2 Benefits for Administration | killexams.com real questions and Pass4sure dumps

    This chapter is from the book 

    Windows Server 2008 R2 provides several new benefits that help organizations better administer their networking environment. These new features provide better file and data management, better performance monitoring and reliability tracking tools to identify system problems and proactively address issues, a new image deployment tool, and a whole new set of Group Policy Objects that help administrators better manage users, computers, and other Active Directory objects.

    Improvements in the Group Policy Management

    Windows Server 2008 R2 introduces over 1,000 new Group Policy Objects specific to Windows Server 2008 R2 and Windows 7, along with several new components that expand on the core capabilities of Group Policy management that have been part of Windows 2000/2003 Active Directory. The basic functions of Group Policy haven't changed, so the Group Policy Object Editor (gpedit) and the Group Policy Management Console (GPMC) are the same, but with more options and settings available.

    As mentioned earlier, the Group Policy Management Console can either be run as a separate MMC tool, or it can be launched off the Features branch of the Server Manager console tree, as shown in Figure 1.7. Group policies in Windows Server 2008 R2 provide more granular management of local machines, specifically having policies that push down to a client that are different for administrator and non-administrator users.

    Additionally, applications can now query or register with a network location awareness service within Group Policy management, which provides the identity where a user or computer object resides. As an example, a policy can be written that allows users to have access to applications and files if they are on a local network segment, but blocks users from accessing the same content when they are on a remote segment for security and privacy reasons. This addition to group policies adds a third dimension to policies so that now administrators can not only define who and what someone has access to, but also limit their access based on where they are.

    Group policies are covered in detail in Chapter 27, "Group Policy Management for Network Clients," as well as in Chapter 19, "Windows Server 2008 R2 Group Policies and Policy Management."

    Introducing Performance and Reliability Monitoring Tools

    Windows Server 2008 R2 introduces new and revised performance and reliability monitoring tools intended to help network administrators better understand the health and operations of Windows Server 2008 R2 systems. Just like with the Group Policy Management Console, the new Reliability and Performance Monitor shows up as a feature in the Server Manager console. By clicking on the Performance Diagnostic Console, the tool shows up in the right pane, as shown in Figure 1.8.

    Figure 1.8

    Figure 1.8 Windows Reliability and Performance Monitor.

    The new tool keeps track of system activity and resource usage and displays key counters and system status on screen. The Reliability Monitor diagnoses potential causes of server instability by noting the last time a server was rebooted, what patches or updates were applied, and chronologically when services have failed on the system so that system faults can potentially be traced back to specific system updates or changes that occurred prior to the problem.

    By combining what used to be three to four tools into a single console, administrators are able to look at system performance, operational tasks, and historical event information in their analysis of a server problem or system operations instability. You can find more details on performance and reliability monitoring in Chapter 34.

    Leveraging File Server Resource Manager

    File Server Resource Manager (FSRM) was a feature pack add-in to Windows 2003 R2 and has been significantly improved with the release of Windows Server 2008 R2. FSRM is a quota management system of files on network shares across an enterprise. Rather than allowing employees to copy the entire content of their laptop to a network, or potentially back up their MP3 audio files onto a network, FSRM provides the ability to not only limit the amount of content stored on network shares, but also to set quotas (or limit storage altogether) on certain file types. So, a user could be limited to store 200GB of files on a network share, but of that limit, only 2GB can be allocated to MP3 files.

    FSRM, shown in Figure 1.9, in Windows Server 2008 R2 has been improved to allow the nesting of quotas to ensure the most restrictive policy is applied. Quotas can also transcend subfolders, so as new folders are created, or as policies are applied at different levels in a folder hierarchy, the policies still apply, and the rules are combined to provide varying levels of quota allocation to user data. Additionally, quotas are now based on actual storage, so if a file is compressed when stored, the user will be able to store more files within their allocated quota.

    File Server Resource Manager is covered in detail in Chapter 28.

    Leveraging the Best Practice Analyzer

    Included in Windows Server 2008 R2 is a built-in Best Practice Analyzer. Found in the Server Manager console tool, the Best Practice Analyzer runs a series of tests against Active Directory roles, such as the Hyper-V role, the DNS role, and the Remote Desktop Services role, to assess whether the role has been installed and configured properly and to compare the installation with tested best practices.

    Some of the results from the Best Practice Analyzer could tell an administrator they need to add more memory to a server, to move a role to a separate server to improve role optimization, or to shift a database to a different drive on the server to distribute disk performance demands on the system. More details on the Best Practice Analyzer are covered in Chapter 20.

    Introduction of Windows Deployment Services

    Windows Server 2008 introduced a new tool called Windows Deployment Services (WDS), which was effectively an updated version of the Remote Installation Services (RIS) that has been available for the past several years. Unlike RIS, which was focused on primarily scripted installations and client images, WDS in Windows Server 2008 R2 can distribute images of Windows 7 clients or Windows Server 2008 R2 servers in a significantly more flexible and modifiable deployment process.

    Like with RIS, Windows Deployment Services allows a client system to initiate a Preboot Execution Environment (PXE), effectively "booting" to the WDS server to see a list of images that can be deployed on the system. Alternately, an organization can create a Windows PE boot disc and have an image initiated from a CD or DVD.

    With Windows Server 2008 R2 and Windows 7, the image can be created in Windows Imaging (WIM) format, which allows for the injection of patches, updates, or even new code to a WIM file without even booting the image file. This provides the organization with more than just static images that get pushed out like in RIS, but rather a tool that provides ongoing and manageable updates to image files.

    WDS also supports the imaging of Windows 2003 servers and Windows XP client systems in the same manner that RIS did in terms of pushing out images or using an unattend script file to send images to systems.

    Windows Deployment Services is covered in detail in Chapter 26, "Windows Server 2008 R2 Administration Tools for Desktops."



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    HR [4 Certification Exam(s) ]
    HRCI [1 Certification Exam(s) ]
    Huawei [21 Certification Exam(s) ]
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    Microsoft [374 Certification Exam(s) ]
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    NIELIT [1 Certification Exam(s) ]
    Nokia [6 Certification Exam(s) ]
    Nortel [130 Certification Exam(s) ]
    Novell [37 Certification Exam(s) ]
    OMG [10 Certification Exam(s) ]
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    RedHat [8 Certification Exam(s) ]
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    SCP [6 Certification Exam(s) ]
    SDI [3 Certification Exam(s) ]
    See-Beyond [1 Certification Exam(s) ]
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    SUN [63 Certification Exam(s) ]
    SUSE [1 Certification Exam(s) ]
    Sybase [17 Certification Exam(s) ]
    Symantec [134 Certification Exam(s) ]
    Teacher-Certification [4 Certification Exam(s) ]
    The-Open-Group [8 Certification Exam(s) ]
    TIA [3 Certification Exam(s) ]
    Tibco [18 Certification Exam(s) ]
    Trainers [3 Certification Exam(s) ]
    Trend [1 Certification Exam(s) ]
    TruSecure [1 Certification Exam(s) ]
    USMLE [1 Certification Exam(s) ]
    VCE [6 Certification Exam(s) ]
    Veeam [2 Certification Exam(s) ]
    Veritas [33 Certification Exam(s) ]
    Vmware [58 Certification Exam(s) ]
    Wonderlic [2 Certification Exam(s) ]
    Worldatwork [2 Certification Exam(s) ]
    XML-Master [3 Certification Exam(s) ]
    Zend [6 Certification Exam(s) ]





    References :


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