ibm xiv storage system host attachment and interoperability

68 IBMXIVStorageSystemHostAttachmentandInteroperability

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2.2AttachingaMicrosoftWindows2008R2clustertoXIV

ThissectionaddressestheattachmentofMicrosoftWindows2008R2clusternodestothe

XIVStorageSystem.

Formoreinformation,seetheXIVStorageSystemHostSystemAttachmentGuidefor

Windows-InstallationGuide,whichisavailableat:

http://publib.boulder.ibm.com/infocenter/ibmxiv/r2/topic/com.ibm.help.xiv.doc/xiv_pubsrelatedinfoic.html

ThissectionaddressestheimplementationofatwonodeWindows2008R2Clusterbyusing

FCconnectivity.

Important:Theproceduresandinstructionsthataregivenherearebasedoncodethat

wasavailableatthetimeofwriting.Forthelatestsupportinformationandinstructions,see

theSystemStorageInteroperabilityCenter(SSIC)at:

http://www.ibm.com/systems/support/storage/config/ssic/index.jsp

Chapter2.XIVandWindowshostconnectivity 69

2.2.1Prerequisites

TosuccessfullyattachaWindowsclusternodetoXIVandaccessstorage,anumberof

prerequisitesmustbemet.Thisisagenericlist.Yourenvironmentmighthaveextra

requirements.

CompletetheFCcabling.

ConfiguretheSANzoning.

TwonetworkadaptersandaminimumoffiveIPaddresses.

InstallWindows2008R2SP1orlater.

Installanyotherupdates,ifrequired.

InstallhotfixKB2468345ifServicePack1isused.

InstalltheHostAttachmentKittoenabletheMicrosoftMultipathI/OFramework.

Ensurethatallnodesarepartofthesamedomain.

CreatevolumestobeassignedtotheXIVHost/Clustergroup,nottothenodes.

SupportedversionsofWindowsClusterServerAtthetimeofwriting,thefollowingversionsofWindowsClusterServeraresupported:

WindowsServer2008R2(x64)

WindowsServer2008(x32andx64)

SupportedconfigurationsofWindowsClusterServerWindowsClusterServerwastestedinthefollowingconfigurations:

Uptoeightnodes:Windows2008(x32andx64)

Upto10nodes:Windows2008R2(x64)

Ifotherconfigurationsarerequired,youneedaStorageCustomerOpportunityREquest

(SCORE),whichreplacestheolderrequestforpricequotation(RPQ)process.IBMthentests

yourconfigurationtodeterminewhetheritcanbecertifiedandsupported.ContactyourIBM

representativeformoreinformation.

SupportedFCHBAsSupportedFCHBAsareavailablefromBrocade,Emulex,IBM,andQLogic.Moreinformation

aboutdriverversionsisavailablefromtheSSICat:

http://www.ibm.com/systems/support/storage/config/ssic/index.jsp

UnlessotherwisenotedinSSIC,useanysupporteddriverandfirmwarebytheHBAvendors.

Thelatestversionsarealwayspreferred.

Multi-pathsupportMicrosoftprovidesamulti-pathframeworkanddevelopmentkitthatiscalledtheMPIO.The

driverdevelopmentkitallowsstoragevendorstocreateDSMsforMPIO.YoucanuseDSMs

tobuildinteroperablemulti-pathsolutionsthatintegratetightlywithMicrosoftWindows.

MPIOallowsthehostHBAstoestablishmultiplesessionswiththesametargetLUN,but

presentthemtoWindowsasasingleLUN.TheWindowsMPIOdriversenableatrue

active/activepathpolicythatallowsI/Oovermultiplepathssimultaneously.

FurtherinformationaboutMicrosoftMPIOsupportisavailableat:

http://download.microsoft.com/download/3/0/4/304083f1-11e7-44d9-92b9-2f3cdbf01048/mpio.doc

70 IBMXIVStorageSystemHostAttachmentandInteroperability

2.2.2InstallingClusterServices

ThisscenariocoversatwonodeWindows2008R2Cluster.Theproceduresassumethatyou

arefamiliarwithWindows2008Cluster.Therefore,theyfocusonspecificrequirementsfor

attachingtoXIV.

FormoreinformationaboutinstallingaWindows2008Cluster,see:

http://technet.microsoft.com/en-us/windowsserver/bb310558.aspx

Toinstallthecluster,completethesesteps:

1. OntheXIVsystemmainGUI,selectHostsandClusters.Createaclusterandputboth

nodesintotheclusterasdepictedinFigure 2-28.

Figure2-28XIVclusterwithbothnodes

Inthisexample,anXIVclusternamedclu_solmanwascreatedandbothnodeswere

placedinit.

2. MapalltheLUNstotheclusterasshowninFigure 2-29.

Figure2-29MappedLUNslist

AllLUNsaremappedtotheXIVcluster,butnottotheindividualnodes.

3. Setupacluster-specificconfigurationthatincludesthefollowingcharacteristics:

Allnodesareinthesamedomain

Havenetworkconnectivity

Private(heartbeat)networkconnectivity

Chapter2.XIVandWindowshostconnectivity 71

Node2mustnotdoanyDiskI/O

Runtheclusterconfigurationcheck

4. OnNode1,scanfornewdisks.Then,initialize,partition,andformatthemwithNTFS.The

followingrequirementsareforsharedclusterdisks:

Thesedisksmustbebasicdisks.

ForWindows2008,youmustdecidewhethertheyareMasterBootRecord(MBR)

disksorGUIDPartitionTable(GPT)disks.

Figure 2-30showswhatthisconfigurationlookslikeonnode1.

Figure2-30Initialized,partitioned,andformatteddisks

72 IBMXIVStorageSystemHostAttachmentandInteroperability

5. Ensurethatonlyonenodeaccessestheshareddisksuntiltheclusterserviceisinstalled

onallnodes.ThisrestrictionmustbedonebeforeyoucontinuetotheClusterwizard

(Figure 2-31).YounolongermustturnoffallnodesasyoudidwithWindows2003.You

canbringallnodesintotheclusterinasinglestep.However,nooneisallowedtoworkon

theothernodes.

Figure2-31CreateClusterWizardwelcomewindow

6. SelectallnodesthatbelongtotheclusterasshowninFigure 2-32.

Figure2-32Selectingyournodes

Chapter2.XIVandWindowshostconnectivity 73

7. AftertheCreateClusterwizardcompletes,asummarypanelshowsyouthatthecluster

wascreatedsuccessfully(Figure 2-33).Keepthisreportfordocumentationpurposes.

Figure2-33FailoverClusterValidationReportwindow

8. Checkaccesstoatleastoneoftheshareddrivesbycreatingadocument.Forexample,

createatextfileononeofthem,andthenturnoffnode1.

9. ChecktheaccessfromNode2totheshareddisksandpowernode1onagain.

74 IBMXIVStorageSystemHostAttachmentandInteroperability

10.MakesurethatyouhavethecorrectclusterwitnessmodelasillustratedinFigure 2-34.

Theoldclustermodelhadaquorumasasinglepointoffailure.

Figure2-34ConfigureClusterQuorumWizardwindow

Inthisexample,theclusterwitnessmodelischanged,whichassumesthatthewitness

shareisinathirddatacenter(seeFigure 2-35).

Figure2-35Selectingthewitnessmodel