Specifications

Basic System Administration

190 VMware, Inc.

thoseversionsoftheLinuxguestoperatingsystemwhichsupportVMI

paravirtualization.

6 SelectAdvanced>FibreChannelNPIVSettings.

N‐portIDvirtualization(NPIV)providestheabilitytoshareasinglephysicalFibre

ChannelHBAportamongmultiplevirtualports,eachwithuniqueidentifiers.This

allowscontrolovervirtualmachineaccess

toLUNsonaper‐virtualmachinebasis.

Eachvirtualportisidentifiedbyapairofworldwidenames(WWNs):aworld

wideportname(WW PN)andaworldwidenodename(WWNN).TheseWWNs

areassignedbytheVirtualCenterServer.

NPIVsupportissubjecttothefollowinglimitations:

 NPIVmustbeenabledontheSANswitch.Contacttheswitchvendorfor

informationaboutenablingNPIVontheirdevices.

 NPIVissupportedonlyforvirtualmachineswithRDMdisks.Virtual

machineswithregularvirtualdiskscontinuetousetheWWNsofthehost’s

physicalHBAs.

 ThephysicalHBAsontheESXServerhostmusthaveaccesstoaLUNusing

itsWWNsinorderforanyvirtualmachinesonthathosttohaveaccesstothat

OTEEnablingparavirtualizationutilizesoneofthevirtualmachine’ssixvirtual

PCIslots.Also,enablingparavirtualizationcanlimithowandwherethevirtual

machinecanbemigrated.Considerthefollowingbeforeenablingthisfeature:

 ThesehostssupportVMIparavirtualization:ESXServer3.5andgreater,ESX

Server3iversion3.5andgreater,andWorkstation6.0andgreater.Hardware

version4virtualmachineswithparavirtualizationenabledthatarecreatedon

ESXServerhostscanbemigratedtoVMwareServerandWorkstationhosts

withoutlossoffunctionality.

 Avirtualmachinewithparavirtualizationenabledandthatispoweredoffcan

bemovedmanuallytoahostthatdoesnotsupportparavirtualization.

However,thiscanresultinreducedperformance.

 Avirtualmachinewithparavirtualizationenabledandthatispoweredonor

inasuspendedpowerstatecannotbemigratedtoahostthatdoesnotsupport

paravirtualization.

 AutomatedVirtualCenterDRSmigrationsofvirtualmachineswith

paravirtualizationenabledtohoststhatdonotsupportparavirutualization

arenotallowed.