Specifications

VMware, Inc. 191
Chapter 12 Configuring Virtual Machines
LUNusingtheirNPIVWWNs.Ensurethataccessisprovidedtoboththehost
andthevirtualmachines.
 ThephysicalHBAsontheESXServerhostmustsupportNPIV.Ifthephysical
HBAsdonotsupportNPIV,thevirtualmachinesrunningonthathostwillfall
backtousingtheWWNsofthehost’sphysicalHBAsforLUNaccess.
 Eachvirtualmachinecanhaveupto4virtualports.NPIV‐enabledvirtual
machinesareassignedexactly4NPIV‐relatedWWNs,whichareusedto
communicatewithphysicalHBAsthroughvirtualports.Therefore,virtual
machinescanutilizeupto4physicalHBAsforNPIVpurposes.
Tovieworeditavirtual
machine’sWWNs:
aToeditthevirtualmachine’sWWNs,poweroffthevirtualmachine.
bEnsurethatthevirtualmachinehasadatastorecontainingaLUNthathas
beenmadeavailabletothehost.
c SelecttheOptionstab.
d SelectFibreChannelNPIV.
eCurrentlyassignedWWNsaredisplayedintheWWNAssignmentsbox.
fDooneof
thefollowing:
 ToleaveWWNsunchanged,selectLeaveunchanged.
 TohaveVirtualCenterortheESXServerhostgeneratenewWWNs,select
GenerateNewWWNs.
 ToremovethecurrentWWNassignments,selectRemoveWWN
assignment.
gClickOKtosaveyourchangesandclosethedialogbox.
ProvidetheWWNassignmentstoyourSANadministrator.Theadministrator
needsthoseassignmentstoconfigurevirtualmachineaccesstotheLUN.Formore
informationonhowtoconfigureanvirtual
machinetouseNPIV,seetheESX
Server3ConfigurationGuideorESXServer3iConfigurationGuide.
7 SelectAdvanced>VirtualizedMMUandspecifywhethertodisablethefeature,
alwaysusethefeaturewhereavailable,orhavethehostsystemdeterminewhether
thefeatureshouldbeused.
N
OTEAvirtualmachinewithWWNsthatarealreadyinuseonthestoragenetwork
ispreventedfrompoweringon.Tosolvethisissue,generatenewWWNsorremove
them.