Acustomerneedsatestbedservertorun64-bitmodeling，simulat……

单项选择题Asmallbio-technicalcompanyisinterestedinimplementinga32-nodeLinuxcluster.Theydevelopedtheirownsoftwarethatallowsallofthenodestoworkonthesameproblematthesametime.Theapplicationrequiresmessagestobepassedbetweenthenodes.Eachnodewillrequireaccesstoasharedstoragepoolofaround500GB.Toidentifythroughputrequirementsforthestoragepool，whichofthefollowingisthemostappropriatequestiontoask？（）

A.Is high availability required？
B.Which network protocols are going to be used？
C.What are the expected I/O’s per second to the storage？
D.To what network infrastructure is the storage pool connected？

多项选择题AretailcompanyneedstoaddmoreserverstotheirCitrixfarm.Theyareconsidering1UserversandHighEndEnterpriseServers.Theircurrentneedisinternalstorageonly，withthepossibilitytoattachtoaSANlater.WhichTWOofthefollowingfeaturesoftheIBMx366wouldexceedthe1Userver’scapabilities？（）

A.Ability to add expansion cards
B.More Citrix users per server reduces management costs
C.Ability to run on both 110V and 220V power input
D.Ease of deployment due to infrastructure integration
E.Physical sharing of the SCSI Storage Expansion Unit
F.Fewer cables and better cable management due to modular switches
G.Integrated HBAs for SAN connectivity

单项选择题Acustomerhasanx445andusestheinternalLSIadaptertomanagetwo146GBdrivesinthechassis.Thecustomerisnoticingperformanceissueswhendeployingadatabasewithsignificantwriteactivityontheinternaldrives.ShouldtheyconsiderusingaServeRAID-6Mwith256MBofcacheinstead，andwhyorwhynot？（）

A.Yes， the internal LSI SCSI adapter has no write cache.
B.Yes， the internal LSI SCSI adapter is unreliable.
C.No， the downtime to install the card and reformat the drives would be cost prohibitive.
D.No， there will be no performance benefit， because drive performance is the bottleneck.

单项选择题A specialist is monitoring performance on a server. The data is on another partition within the same array as the OS. The following information is available：       （1）The average record written to disk is 16KB       （2）The I O block size is 2KB   （3）The stripe size on the RAID array is 16KB  Which of the following will improve performance without rebuilding the operating system？（）

A.Change the I/O block size to match the RAID Stripe size.
B.Change the RAID stripe size to match the I/O block size.
C.Change the record size of the database to match the RAID stripe size.
D.Change the record size of the database to match the I/O transfer rate.

单项选择题AcustomerhasasmallSANwithbothLinuxandWindowsserversattachedtoaDS4300storageserverthrougharedundantfabric.Whichofthefollowingisthemostimportantconsiderationtoensurethatthisconfigurationwouldfunctionproperly？（）

A.The utilization of interswitch links between the redundant switches
B.The enablement of the multi-OS Storage Partitioning feature on the DS4300
C.Selection of 50u multi-mode Fibre to ensure 2Gb operation
D.The RAID level of the array on the DS4300 storage server