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HP0-A08 NonStop H-series Operating System Support

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HP0-A08 exam Dumps Source : NonStop H-series Operating System Support

Test Code : HP0-A08
Test denomination : NonStop H-series Operating System Support
Vendor denomination : HP
exam questions : 68 actual Questions

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HP NonStop H-series Operating System

HP Tweaks NonStop, HP-UX systems | actual Questions and Pass4sure dumps

windows and Linux servers may furthermore dominate income at Hewlett-Packard, as they conclude for the programs market at giant, but the company nonetheless has a significant company peddling NonStop and HP-UX techniques. These machines requisite custody and a focus on occasion, as any product line does, and this week HP is updating the hardware for NonStop methods and the HP-UX operating rig for its Integrity and Superdome machines.

In many ways, the NonStop failing tolerant servers are going to possess an extended and extra entertaining future than the HP-UX machines. As EnterpriseTech reported final fall, HP has decided to port the NonStop working rig and disbursed database administration system from its latest Itanium processors to Intel’s Xeon processors. HP has been vague about when this port can live finished and on what specific Xeon equipment. HP is clearly in no hurry, nor does it ought to live given the dimensions out nature of the NonStop line. The present NonStop machines can possess up to 4,080 nodes linked along with a proprietary ServerNet interconnect for a maximum of 16,320 cores running the shared-nothing relational database and its underlying NonStop kernel. Randy Meyer, director of product administration for the NonStop line, which is allotment of HP’s enterprise considerable systems division, informed EnterpriseTech closing drop that the largest account has simply over 1,000 nodes in creation. there is a number of latitude to scale out, naturally, with the existing product line. but just because the database cluster can scale out horizontally doesn't besubstantive that valued clientele don’t requisite some extra perpendicular scaling on each and every node to mitigate raise the efficiency of the dispensed applications running atop NonStop clusters. (If this had been now not the case, NonStop machines would silent live running on MIPS processors which are about as powerful as you possess got inner your home router.)

The high-conclusion NonStop NB56000 techniques are in response to a variant of the Integrity i4 blade servers that HP announced in November 2012 wearing the “Poulson” Itanium 9500 processors, which reach in two-core and four-core variants with clock speeds operating from 1.seventy six GHz to 2.fifty three GHz. HP additionally has a low-end product that receives purchasers going on smaller clusters that are in line with much less expensive rx2800 i4 rack servers. These low-conclusion machines are what HP is updating nowadays. The NS2300 NonStop machines are according to two-core Itanium 9500 processors, while the NS2400 are in line with the four-core Itanium 9500 chips. The processors are working at the entry 1.73 GHz speed. The prior machines topped out at 32 GB of reminiscence per node but the recent one is accelerated to 48 GB per node. as much as four of these machines can live clustered prerogative into a lone failing tolerant system. With the entire tweaks between the “Tukwila” Itanium 9300 and Poulson Itanium 9500 processors, socket for socket the more moderen Itaniums carry someplace between 2X and a couple of.4X in performance, counting on the workload. in response to the clock speeds HP has used for the NonStop machines, valued clientele will note round a 50 % performance increase. (HP is staying far from the higher-clocking and greater costly Itanium 9500 chips.)

HP is not divulging the pricing on the NonStop machines but Jeff Kyle, director of product management for the enterprise Servers community, says that pricing for the recent NB2300 and NB2400 machines based on Poulson are in the same latitude because the NB2100 and NB2200 machines in line with Tukwila. A groundwork NonStop 2100 machine from August 2012 cost $75,000 with two logical processors in two sever physical nodes with eight GB of memory on each and every node; that machine additionally included six system disks (that’s three mirrored volumes) and six information disks (triple mirrored as neatly for secure conserving). That rig has the NonStop kernel rate however the NonStop database will can pervade you an extra $13,000 for an annual license. The entry gadget additionally runs the ServerNet clustering atop Ethernet, which cuts expenses.

The element that HP specializes in with the NonStop line is that it no longer only presents incredible scalability for database purposes, however that the failing tolerance is enhanced than which you can accumulate with a cluster of Linux servers running databases in a exorbitant availability mode. in case you hold an Oracle actual application Clusters setup, says Kyle, you may live able to shove it to three or 4 nines of availability (that’s ninety nine.9 p.c or ninety nine.ninety nine p.c uptime, which is, respectively, four.4 hours or 52.3 minutes of downtime per 12 months). but, contends Kyle, that you could accumulate five nines of availability, or just around 5 minutes of downtime per 12 months, with a NonStop cluster ­– and conclude so at a 25 p.c reduce cost. That evaluation comes from certainly one of HP’s system integrators in Europe who desires to wait anonymous and who builds fee techniques on both NonStop failing tolerant clusters and greater commonplace Linux clusters. HP continues a low-conclusion rig around to accumulate valued clientele hooked on the iron and then to grow with them. there's a intuition these venerable Tandem machines persist and when HP at terminal gets NonStop ported over to Xeon processors and ServerNet operating atop InfiniBand it is going to live possible to ramp up the keep in base.

Ideally, HP would possess carried out this lengthy for the intuition that when it grew to live obvious that Itanium was a lifeless end, however the enterprise wanted to store puss in its combat within the press and then within the courts with Oracle over the destiny of the Itanium processor. HP has no longer gained damages in its lawsuit as of yet and hence it is going to conclude nothing to disparage the chip. but the future “Kittson” Itanium, due in everyone probability this yr or next, is not anticipated to present purchasers an abominable lot within the means of core import number or efficiency boosts. What become once a scheme to conclude a more aggressive redecorate of the Itanium with the Kittson 9700 collection – together with socket compatibility with the Xeon E7s – now looks to live some modest architectural tweaks on the current Itanium 9500s and no more socket compatibility.

HP’s techies possess proposed porting the venerable HP-UX Unix variant to Xeon processors a few instances but every time the hassle turned into shot down by means of the top brass on the industry for explanations it has not defined. It is not arduous to figure. For probably the most half, NonStop valued clientele write their personal functions, most frequently in Java nowadays, so relocating their applications from Itanium to Xeon is not a ample deal. The Java stack takes custody of most of it and HP is providing a source code assure for those that employ different NonStop compilers to jot down their code. On HP-UX, besides the fact that children, most shoppers are the employ of an Oracle database and third celebration applications, often from Oracle or SAP. It appears impossible that any of the device utility suppliers will conclude ports of their code to HP-UX on Xeon given the quite miniature base. SAP has clearly tied its future to Xeon E7 machines working SUSE Linux and its HANA in-reminiscence database and Oracle has no activity in assisting HP-UX sell towards its own Sparc SuperCluster or Xeon Exadata “engineered techniques,” which eschew its own Solaris and Oracle Linux operating techniques. If HP had finished an X86 port of HP-UX decades in the past, lengthy earlier than both SAP or Oracle were attracted to programs, there could had been an opening for HP-UX on Xeon and Opteron processors. realizing this, HP has in its plot pitched Linux and windows on its future Xeon E7 “undertaking Odyssey” machines, so that you can scale as much as sixteen sockets and sixteen TB of main memory in a lone photo the usage of NUMA clustering.

Having talked about everyone of that, HP-UX continues to live a ample a allotment of the workload at many world 2000 businesses and may most really live supported until 2020, and very likely beyond that. And so HP has to supplant the working device from time to time to ply concerns that its largest valued clientele are dealing with. HP is additionally changing the pricing on its CloudSystem Matrix add-on for Integrity i4 machines to manufacture it affordable for companies to construct clouds in line with HP-UX.

The March 2014 update to HP-UX 11i v3, as you can note from the unencumber notes, is the thirteenth update to this version of HP’s Unix, which is supported on Itanium-primarily based machines, and brings a “soft reboot” role to the Integrity i4 machines. This characteristic was already available on the Superdome 2 servers in an update final 12 months. depending on the complexity of the methods utility, booting up an HP-UX desktop can hold anyplace from several to as an abominable lot as 40 minutes, says Kyle, and this fine reboot characteristic can lop this time in half.

The HP-UX update furthermore comprises the capability to dynamically stream workloads running inner of Integrity VMs and vPars partitions from Integrity i2 machines in line with Tukwila Itaniums to Integrity i4 machines in keeping with Poulson chips. This circulate requires no downtime. whereas Kyle is making no promises on the naming conventions, when the Kittson Itaniums are available in what they postulate should live called the Integrity i6 servers, this dynamic VM software migration characteristic can live attainable to flux apps from the current i4 to the long eschew i6 machines as smartly. HP-UX 11i v3 has additionally been modified to aid the dynamic addition of I/O, and C and C++ libraries can in a similar style live sizzling swapped without taking down the device. Integrity VMs are additionally fatter with twice the digital cores (32) and twice the virtual memory (256 GB) supported per VM. HP has already converged the administration of vPars and Integrity VM virtual machines in a previous unlock and with the March 2014 update, HP has automated the conversion process to creep vPars to Integrity VMs. The HP-UX statistics sheet has details on the previous a few releases and additionally explains the diverse versions of the HP-UX stack.

The one other change concerning HP-UX is a change in pricing for the CloudSystem Matrix cloud controller and automation device that HP sells for both its ProLiant X86 and Integrity Itanium machines. On the Itanium machines, HP used to require that customers purchase no less than eight sockets of licenses to the CloudSystem Matrix software. starting now, customers can buy a license for under two sockets. that's a pretty modest cloud by route of any necessities, however then once more, HP-UX workloads, like these of other Unix suppliers, reach from pretty miniature to notmuch massive. CloudSystem Matrix will eschew on relatively veteran ProLiant and Integrity equipment, however Kyle says that it's really tuned to eschew on Integrity i2 and i4 and ProLiant Gen7 and Gen8 packing containers.


HP presents WebLogic on OpenVMS, NonStop servers | actual Questions and Pass4sure dumps

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HP gears down NonStops for midrange, rising markets | actual Questions and Pass4sure dumps

Hewlett-Packard's NonStop servers tolerate faults besides the fact that recent CEO Meg Whitman and Wall road, which is respiratory down her neck, cannot. And now, in a hope to offset declines on its HP-UX Itanium server industry and accumulate its NonStop Integrity machines into emerging markets, HP has trimmed down the configurations and costs on the NonStops so they are within financial reach of extra customers.

unlike the HP Integrity and Superdome servers that eschew HP-UX and the OpenVMS variants of the Integrity machines, the NonStop platform that everyone started out as Tandem and came to HP via its acquisition of Compaq greater than a decade in the past is one which HP absolutely controls and that Oracle cannot basically conclude a powerful deal to. As is the case on AIX and Solaris, Oracle's 10g and 11g databases are by using some distance the favorite databases on HP-UX and a unbiased amount of HP-UX industry is pushed through Oracle's myriad utility suites. Oracle furthermore controls the RDB relational database for OpenVMS, too. And clustering technology from Tru64 Unix is the underpinning of Oracle's actual utility Clusters because of a licensing hold custody of Compaq that predates the HP takeover of Compaq.

The NonStop machines employ quick networking and clustering expertise to manufacture a parallel database note like a lone database to functions; the application has failing tolerance, which capacity if you lose a server node within the community, processing continues on the final nodes without crashing the utility.

With the NonStop line, economic functions, charge processing, stock exchanges, healthcare, and telecom firms (who are often legally mandated to maintain their techniques up and operating) frequently write their own applications and are neatly acquainted with the NonStop Kernel working rig and the NonStop SQL database and at the present time are apt to live coding apps in Java, commonly from within Microsoft's visual Studio app dev tool. Larry Ellison can compete with NonStop with Oracle RAC on Solaris or Linux, but he has no app or database or middleware levers to play here as he does with HP-UX and to a much smaller extent with OpenVMS.

it's a marvel that HP hasn't establish out that the one working gadget and database it must port to Xeons is never HP-UX, but fairly NonStop. Then HP might employ more cost-effective Xeon iron and combine the ServerNet network clustering into the computer.

It may even live in a position to tug a Cray and keep a Linux emulation environment atop the hypothetical ServerNet infrastructure after which allow applications already compiled for X86 iron to eschew unchanged on ServerNet, pondering they're on a standalone Linux container with an Ethernet stack. (here is a allotment of the Cray Linux atmosphere, which masks the underlying "SeaStar" and "Gemini" interconnects from supercomputer applications.)

i could travel one further and protest that perhaps HP needs to purchase Cray above everyone for this Linux layer and build a wholly recent server company from Cray and Tandem. This ported NonStop atmosphere would, for instance, travel very properly with the longer term "undertaking Odyssey" Xeon-based mostly servers that the company is working on.

but, regrettably, that isn't what HP is doing these days. The company is offering a geared-down NS2100 server, a comply with-on to the previously smallest NonStop gadget in the lineup, the NS2200, which HP started selling in February and which it didn't publicly announce. (i know, this makes no sense.)

The NonStop 2100 is in keeping with the rx2800 i2 rack-mounted server, which debuted again in April 2010 with the relaxation of the Integrity and Superdome servers carrying Intel's "Tukwila" quad-core Itanium 9300 processors. this is a two-socket server, just like the blade servers that other Integrity machines are, however HP only puts one processor in the device and, counting on the mannequin, handiest activates one, two, or four cores in that lone socket.

This might furthermore sound ordinary, but it means HP only has to buy one chip from Intel to manufacture a various line of machines – in the case of the entry NonStop machines, that would live the 1.33GHz Itanium 9320 processor, which has 16MB of L3 cache and costs half as tons as the excellent-bin 1.73GHz half.

NonStop NS2100 failing tolerant server

NonStop NS2100 failing tolerant server

by the way, in keeping with Randy Meyer, director of product administration for the NonStop line within HP's enterprise essential techniques division, you cannot spark off those dormant cores in an NS2100 or NS2200 node. So conclude not mischance attempting. (You requisite at the least two nodes to live failing tolerant.) in preference to the usage of the high-conclusion ServerNet clustering that's on the heart of the higher NonStop machines, HP has cooked up a variant cluster know-how known as extend-over-IP that enables gauge Gigabit Ethernet links and outboard switches for linking I/O, storage, and telecom switching systems.

The NonStop machines create a logical processor, which can possess from two to 4 cores and hence from two to 4 nodes. These logical processors can possess from 8GB to 32GB of logical memory, and they're then linked with the expand-over-IP network stack into a larger cluster over the Gigabit Ethernet backbone implemented by the IP Cluster I/O module, or I/O CLIM for brief. as much as 1,020 logical processors can furthermore live linked collectively into a lone failing tolerant cluster with a highest of 32TB of reminiscence and up to four,080 Itanium cores across that cluster.

There are Storage CLIMs to link to storage – during this case, arrays with as much as 200 disk drives – and if you are within the telco racket, the Telco CLIM to link into switching systems. The NS2100 can possess up to 6 of those CLIMs in its networks. in the intervening time, the NS2100 ships in a 42U rack, however Meyer says a more compact 36U gadget is coming inside a few months.

You should live would becould very well live considering, how can a NonStop cluster eschew over Gigabit Ethernet? neatly, the sorts of functions that consumers are likely to eschew on NonStop machines customarily possess loads of tiny transactions. "or not it's now not like you are poignant round images of your dog," says Meyer with a chortle.

With the NonStop NS2200 entry gadget that debuted in February, everyone of the feeds and speeds are the same except that each and every rx2800 i2 server has two of its 4 cores activated, and for this intuition which you could carry roughly twice the computing aptitude to bear across these 1,020 logical processors and 32TB of leading memory.

With the NonStop BladeSystem NB54000c machines that were announced in March 2011, the nodes are clustered along with arrogate ServerNet switches and employ the IP, Storage, and Telco CLIMs to consult with the outdoor world. The NB54000c has a logical node comprised of two blade servers and it will probably extend up to sixteen blade servers. every blade is actually a two-socket on the Integrity BL860c i2 blade server, and once again there is only one physical processor installed on the blade.

shoppers can possess two or four cores on the Itanium 9340 activated; they spin at 1.6GHz. The excessive-end bladed NonStop makes employ of the same c7000 chassis as ProLiant and Integrity blade servers, and it could scale as much as 255 logical processors to a complete of four,080 physical blades with as much as sixteen,320 Itanium cores in a lone cluster. The greater box can aid 48 CLIMs and a pair of,four hundred SAS disks or 60 I/O Modular Enclosure adapters (from the old-trend NonStops) with three,248 Fibre Channel disks for storage.

The NS2100 and NS2200 eschew the equal NonStop J-series operating gadget, which was tweaked to eschew on multicore Itanium processors, as the bigger NonStop BladeSystem machines. (The latest supported unlock on the NS2100 is J06-14.)

A groundwork configuration of the NS2100 gadget comes with two logical processors in two nodes, 8GB of reminiscence in every node, six device disks (with three mirrored volumes) and six records disks (once again in three mirrored volumes. The machine comes with the NonStop Kernel working system, however not the NonStop SQL database (no longer everyone valued clientele employ the database, in keeping with Meyer) and charges $75,000 with a one-year license to NonStop Kernel. if you requisite to add NonStop SQL, an annual license will eschew you round $13,000, counting on aspects.

this is significantly less elevated priced than the NS2000 rack-primarily based machine that HP announced lower back in March 2009 using the twin-core Itanium 9100 processors. A groundwork NS2000 with two logical processors (four cores, not two irony you) and 16GB of reminiscence across those two nodes ran about $a hundred twenty five,000 for the hardware, and the NonStop application stack introduced a further $one hundred,000 to $a hundred twenty five,000 on upright of that. denomination it $225,000 at the midpoint. The NS2100 has about 35 per cent much less oomph, but at $88,000 charges about 60 per cent less. that's a large growth in bang for the buck. (I feel HP may conclude enhanced with Xeon iron, but it surely would require software investment to accumulate Itanium and MIPS emulation to work on Xeons.)

That NS2100 furthermore prices a powerful deal less than an NB54000c setup, and here is what is essential for miniature and midrange purchasers in addition to companies and govt organizations in emerging markets that don't requisite the gross processing and that i/O capability of the NonStop BladeSystem but who want failing tolerance just the identical. reckoning on hardware and utility configuration, an entry NB54000c laptop can cost as a lot as $500,000 in response to Meyer, with a gauge groundwork configuration working round $325,000 for 2 logical processors.

Pricing for the NS2200 begins at beneath $150,000 for a groundwork computing device with a one-12 months license for NonStop Kernel.

NonStop biz is growing to be

HP does not demolish out sales of the NonStop products from different systems within the industry crucial methods unit, and hence Meyer cannot accumulate selected about how this line is doing.

"we're starting to live consumers, starting to live market share, and transforming into their ISV companion groundwork – and we're no longer dropping customers," Meyer tells El Reg>, including that the can pervade of clustering up Linux programs for elevated availability is not any more cost-effective than these recent NS2100 machines and that is why HP has been able to grow the NonStop installed base. "purchasers carefor their NonStop machines and they eschew them continuously and ever."

HP is not yet ready to contend its plans for the upcoming eight-core "Poulson" Itanium 9500 processors from Intel, so as to scale from 1.73GHz to 2.53GHz. If HP goes with the eight-core Itanium 9550 half working at 2.4GHz, it may drop these into the NS2100 and NS2200 machines and augment performance with the aid of round 50 per cent – even after turning off seven of the eight cores, as crazy as that sounds.

Meyer says that HP will roll the Poulson chips into the NonStop BladeSystem machines first after which cascade it down the road at some later date. So in case you requisite an entry NonStop desktop, there isn't a point in ready. The Tukwila variants are the only ones that could live accessible except perhaps the seat of next 12 months, they guess. ®

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NonStop H-series Operating System Support

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HP Updates Himalaya Servers | actual questions and Pass4sure dumps

HP Updates Himalaya Servers

Future's so bright

One of the worries of Compaq customers after the merger with Hewlett-Packard Co. is the future of server products such as the Alpha processor and the OpenVMS operating system. With its announcement of its updates to the NonStop server line, HP gave an indication for the future of one of its product lines.

The former Compaq Computer Corp. acquired the NonStop server line with its purchase of Tandem in 1997. NonStop is a line of High-Availability (HA) servers used in Datacenter applications such as flight reservations or credit card transactions.

This week’s refresh updates the CPU used in the NonStop line. The recent top-tier NonStop 86000 machine will employ the MIPS R14000 processor. HP furthermore updated its older line, giving the recent S76 machines the R14000. Older machines, such as the S74000 used MIPS’ R12000.

HP furthermore updated other hardware in the NonStop server line. The recent servers can back more memory, up to 16GB per processor. Faster storage systems were furthermore introduced, which HP says improves I/O performance by 25%.

A clearer indication that HP has plans for the former tandem machines is the software updates. HP introduced a recent version of the NonStop SQL/MX relational database, version 1.5. It furthermore brought the aboriginal software in line with current Java standards. HP furthermore partnered with Radiant Logic Inc. to bring aboriginal directory services to the NonStop platform.

Finally, HP signaled its intent to bring NonStop’s software into the Web Services age. It will back SOAP, WSDL, and other components of the Web services stack in future software releases. It furthermore announced a partnership with EAI heavyweight TIBCO for enterprise integration opportunities.

The high-end S76000 and low-end S760 servers are available today, with other servers arriving in the third quarter. HP will hold a conference convoke Monday to further clarify its vision for the NonStop line.

About the Author

Chris McConnell is Product and Technology Editor for Enterprise Systems.

TIC On the creep – Adds HPE NonStop Performance Expert to Team | actual questions and Pass4sure dumps

(PRLEAP.COM) July 10, 2018 (Great Neck, NY) – TIC Software, the leading provider of software solutions and consulting services for HPE NonStop modernization, is pleased to broadcast the addition of Matt Riesz to their employ as a customer consultant. Mr. Riesz is a 35-year veteran of Tandem/Compaq/HP/HPE and brings to bear vast sustain and expertise in the domain of performance analytics to assist TIC customers. He'll work with TIC's NonStop customers, keeping their systems operating at peak efficiency and productivity levels.

Mr. Riesz's career spans the gamut of corporate transitions within what is now known as HPE NonStop. Hired by Tandem Computers in 1982 as a systems engineer, his career evolved as the company morphed from Tandem to Compaq, and finally to HP/HPE, where he retired as a master systems architect. Matt's focus has been on pre-and post-sales technical back for software and systems. His expertise in system architecture, analytics and performance will live leveraged to mitigate TIC clients realize optimal productivity from their NonStop systems.

Mr. Riesz will live providing operations back for TIC customers through performance analysis, in addition to integrating recent technologies into the firm's ongoing NonStop modernization efforts. Some of these recent technologies include:

  • Amazon Web Services (AWS) – providing subscription-based on-demand cloud computing
  • TOP NonStop GUI – giving NonStop users efficient access from a gauge Windows interface
  • Blockchain Technology – distributed digital data – shared & reconciled across the Internet
  • "We are excited to add an experienced professional of Matt's caliber to their team," explained Phil Ly, President, TIC Software. "Matt's vast sustain with NonStop customers in the field, and his system analysis and architecture skills and expertise, will mitigate their customers help their IT operations through enhanced performance and productivity. They note forward to offering Matt's skills to everyone their NonStop modernization customers'!"

    About TIC Software:TIC Software was created to address the challenges of keeping Tandem/HP NonStop legacy systems current with ever-evolving "modernization" technology – providing consulting expertise and software solutions designed to preserve mission-critical applications up-and-running. Today, they continue to meet these modernization challenges, as well as offer migration solutions to organizations looking to explore other technological options. Visit for more.

    TIC Software – NonStop Innovation

    MEDIA CONTACT: Ryan Ly, TIC Software, C: 310-409-5082

  • King of the network operating systems | actual questions and Pass4sure dumps

    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 everyone boils down to what you're looking for in a network operating system (NOS).

    Do you want it skinny and flexible so you can install it any route you please? Perhaps administration bells and management whistles are what you requisite 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 advantageous news is that there is a NOS waiting just for you. After the rash of recent software revisions, they took an in-depth note 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 recent version.

    Microsoft's Windows 2000 edges out NetWare for the Network World Blue Ribbon Award. Windows 2000 tops the domain 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 powerful groundwork for an enterprise network.

    We establish 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 stint 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 manufacture it a sturdy candidate for running enterprise applications.

    The numbers are in

    Regardless of the job you saddle your server with, it has to effect 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 actual world, their benchmark tests regard a wide reach of server conditions.

    NetWare was the hands-down leader in their performance benchmarking, taking first plot 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 effect well handling large loads - those tests in which there were more than 100 users. Under heavier user loads, Linux had a drift to halt servicing file requests for a short age and then start up again.

    Windows 2000 demonstrated penniless write performance across everyone their file tests. In fact, they establish 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 implement they used, they determined that the penniless write performance could live due to two factors. One, which they were unable to verify, might live 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 supposititious to occasions the server to update cache, if appropriate, and then force a write to disk. When the write to disk occurs, the write convoke is released and the next request can live sent.

    At first glance, it appeared as if Windows 2000 was the only operating system to veneration 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 veneration 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 everyone 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 establish 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 conditional 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 silent 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 everyone 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 aptitude to ply large numbers of network sessions with miniature file transactions.

    Despite a penniless 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 ply network requests with multiple processors. Novell and Red Hat protest they are working on integrating this capability into their products.

    NetWare and Linux furthermore registered sturdy long TCP test results, coming in second and third, respectively.

    In the short TCP transaction test, NetWare came out the limpid winner. Linux earned second plot in spite of its need of back for abortive TCP closes, a mode by which an operating system can quickly rend 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 back more halt 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 establish 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 simple to employ and lets you configure many local server elements, including users, disks, and system settings such as time and date.

    MMC furthermore lets you implement management policies for groups of users and computers using dynamic Directory, Microsoft's recent directory service. From the dynamic Directory management implement inside MMC, you can configure users and change policies.

    The network configuration tools are establish in a sever 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 deem ConsoleOne's interface is a bit unsophisticated, but it works well enough for those who must possess a Windows- based manager.

    Novell furthermore 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 implement 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 eschew as a graphical or text-based application. The graphical interface, which resembles that of MMC, works well but has some layout issues that manufacture it difficult to employ at times. For example, when you eschew 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 employ 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 accumulate 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 halt 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 particular in a sever 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 furthermore offers a useful Java-based remote administration implement called WebTop that works from your browser.

    An eye on the servers and clients

    One considerable administration stint is monitoring the server itself. Microsoft leads the pack in how well you can preserve 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 implement called Network Monitor has a basic network packet analyzer that lets you note the types of packets coming into the server. Together, these Microsoft utilities can live 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 note for, it can live a powerful implement for diagnosing bottlenecks in the system. Learning the signification of each of the monitored parameters is a bit of a challenge, though.

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

    Red Hat offers the gauge 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 elevated flush of proficiency to employ effectively. A suite of graphical monitoring tools would live a powerful addition to Red Hat's Linux distribution.

    UnixWare furthermore 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 advantageous overall conception of the load on the server.

    Client administration

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

    We were able to configure user permissions via Microsoft's dynamic Directory and the directory administration implement 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 route of client administration features. You must control local users through Unix consent 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 back 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 aptitude to partake 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 dynamic Directory management tools. Windows 2000 furthermore offers Distributed File Services, which let you combine files on more than one server into a lone share.

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

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

    Red Hat includes Linux's printtool utility for setting up server-connected and networks printers. You can furthermore employ 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 earnest drawback.

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

    Storage management

    Windows 2000 provides the best tools for storage management. Its graphical Manage Disks implement 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 live moved to another 2000 server without having to configure the volume on the recent server. The recent 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 simple to use, but it can live a exiguous 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 implement looks a exiguous primitive, but they give it elevated 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 implement that ships with UnixWare. They had some problems initially getting the implement to recognize the drives so they could live formatted. They managed to work around the disk configuration problem using an assortment of command line tools, after which Volume Manager worked well.


    While they did not probe these NOSes extensively to expose any security weaknesses, they did note 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 implement that integrates with MMC for simple management of security objects in the dynamic Directory Services system, and a recent Encrypting File System that lets you designate volumes on which files are automatically stored using encryption.

    Novell added back 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 live individually controlled to augment security. Red Hat offers Pluggable Authentication Modules as a route of allowing you to set authentication policies across programs running on the server. Passwords are protected with a shadow file. Red Hat furthermore 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 everyone network services off. It's a advantageous management time saver, though you could manually modify the services to achieve the same result.

    Stability and failing tolerance

    The most feature-rich NOS is of exiguous value if it can't preserve a server up and running. Windows 2000 offers software RAID 0, 1 and 5 configurations to provide failing tolerance for onboard disk drives, and has a built-in network load-balancing feature that allows a group of servers to note like one server and partake the same network denomination and IP address. The group decides which server will service each request. This not only distributes the network load across several servers, it furthermore provides failing tolerance in case a server goes down. On a lesser scale, you can employ 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 furthermore 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, everyone 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 live 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 arduous confine to the number of servers you can configure in a cluster. Red Hat Linux furthermore provides software RAID back 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 elevated flush of fault-tolerance. Currently, Non-Stop Clustering supports six servers in a cluster. UnixWare provides software RAID back that is managed using SCO's On-Line Data Manager feature. everyone the gauge RAID levels are supported. Computer Associates' bundled ArcServeIT 6.6 provides backup and restore capabilities. UnixWare has memory protection capabilities.


    Because their testing was conducted before Windows 2000's universal 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 live much easier to employ if it gave more than a couple of sentences at a time for a particular mitigate topic.

    NetWare 5 comes with two manuals: a detailed manual for installing and configuring the NOS with advantageous explanations of concepts and features along with an overview of how to configure them, and a miniature 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 pilot and a reference manual - everyone of which are simple 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 advantageous job of reflecting this painful experience. The getting started pilot 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 simple to follow.

    Wrapping up

    The bottom line is that these NOSes offer a wide reach of characteristics and provide enterprise customers with a powerful deal of selection regarding how each can live used in any given corporate network.

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

    The selection is yours.

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


    Debate will focus on Linux vs. LinuxJanuary 20, 2000Some Windows 2000 PCs will jump the gunJanuary 19, 2000IBM throws Linux lovefestJanuary 19, 2000Corel Linux will eschew Windows appsJanuary 10, 2000Novell's eDirectory spans platformsNovember 16, 1999New NetWare embraces Web appsNovember 2, 1999Microsoft sets a date for Windows 2000October 28, 1999


    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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    Novell, Inc.Microsoft Corp.The Santa Cruz Operation, Inc. (SCO)Red Hat, Inc.

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    ICAI [1 Certification Exam(s) ]
    ICDL [6 Certification Exam(s) ]
    IEEE [1 Certification Exam(s) ]
    IELTS [1 Certification Exam(s) ]
    IFPUG [1 Certification Exam(s) ]
    IIA [3 Certification Exam(s) ]
    IIBA [2 Certification Exam(s) ]
    IISFA [1 Certification Exam(s) ]
    Intel [2 Certification Exam(s) ]
    IQN [1 Certification Exam(s) ]
    IRS [1 Certification Exam(s) ]
    ISA [1 Certification Exam(s) ]
    ISACA [4 Certification Exam(s) ]
    ISC2 [6 Certification Exam(s) ]
    ISEB [24 Certification Exam(s) ]
    Isilon [4 Certification Exam(s) ]
    ISM [6 Certification Exam(s) ]
    iSQI [7 Certification Exam(s) ]
    ITEC [1 Certification Exam(s) ]
    Juniper [65 Certification Exam(s) ]
    LEED [1 Certification Exam(s) ]
    Legato [5 Certification Exam(s) ]
    Liferay [1 Certification Exam(s) ]
    Logical-Operations [1 Certification Exam(s) ]
    Lotus [66 Certification Exam(s) ]
    LPI [24 Certification Exam(s) ]
    LSI [3 Certification Exam(s) ]
    Magento [3 Certification Exam(s) ]
    Maintenance [2 Certification Exam(s) ]
    McAfee [8 Certification Exam(s) ]
    McData [3 Certification Exam(s) ]
    Medical [69 Certification Exam(s) ]
    Microsoft [375 Certification Exam(s) ]
    Mile2 [3 Certification Exam(s) ]
    Military [1 Certification Exam(s) ]
    Misc [1 Certification Exam(s) ]
    Motorola [7 Certification Exam(s) ]
    mySQL [4 Certification Exam(s) ]
    NBSTSA [1 Certification Exam(s) ]
    NCEES [2 Certification Exam(s) ]
    NCIDQ [1 Certification Exam(s) ]
    NCLEX [2 Certification Exam(s) ]
    Network-General [12 Certification Exam(s) ]
    NetworkAppliance [39 Certification Exam(s) ]
    NI [1 Certification Exam(s) ]
    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) ]
    Oracle [282 Certification Exam(s) ]
    P&C [2 Certification Exam(s) ]
    Palo-Alto [4 Certification Exam(s) ]
    PARCC [1 Certification Exam(s) ]
    PayPal [1 Certification Exam(s) ]
    Pegasystems [12 Certification Exam(s) ]
    PEOPLECERT [4 Certification Exam(s) ]
    PMI [15 Certification Exam(s) ]
    Polycom [2 Certification Exam(s) ]
    PostgreSQL-CE [1 Certification Exam(s) ]
    Prince2 [6 Certification Exam(s) ]
    PRMIA [1 Certification Exam(s) ]
    PsychCorp [1 Certification Exam(s) ]
    PTCB [2 Certification Exam(s) ]
    QAI [1 Certification Exam(s) ]
    QlikView [1 Certification Exam(s) ]
    Quality-Assurance [7 Certification Exam(s) ]
    RACC [1 Certification Exam(s) ]
    Real-Estate [1 Certification Exam(s) ]
    RedHat [8 Certification Exam(s) ]
    RES [5 Certification Exam(s) ]
    Riverbed [8 Certification Exam(s) ]
    RSA [15 Certification Exam(s) ]
    Sair [8 Certification Exam(s) ]
    Salesforce [5 Certification Exam(s) ]
    SANS [1 Certification Exam(s) ]
    SAP [98 Certification Exam(s) ]
    SASInstitute [15 Certification Exam(s) ]
    SAT [1 Certification Exam(s) ]
    SCO [10 Certification Exam(s) ]
    SCP [6 Certification Exam(s) ]
    SDI [3 Certification Exam(s) ]
    See-Beyond [1 Certification Exam(s) ]
    Siemens [1 Certification Exam(s) ]
    Snia [7 Certification Exam(s) ]
    SOA [15 Certification Exam(s) ]
    Social-Work-Board [4 Certification Exam(s) ]
    SpringSource [1 Certification Exam(s) ]
    SUN [63 Certification Exam(s) ]
    SUSE [1 Certification Exam(s) ]
    Sybase [17 Certification Exam(s) ]
    Symantec [135 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) ]

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