VMware View 4 Premier Add-On: 10 pack Specifikace stáhnout pdf (Strana 131)

VMware, Inc. 131

Chapter 6 View Composer

Averyaggressivelevelofstorageovercommitresultsinarelativelysmallamountof

spacebeingreservedfordeltadiskexpansion;however,administratorscanaddalotof

extravirtualmachinestothedatastoreiftheypredictthatthedeltadisksofeachvirtual

machinewillnevergrowtotheirmaximum

possiblesize.

Whileahighovercommitlevelmaybeoptimalforcreatingalargenumberofvirtual

machines,adesktoppoolofthistypealsodemandsmoreattentionfromthe

administratorinordertoensurethattheremainingdiskspaceisnotcompletely

consumedbyvirtualmachineexpansion.Thisconditioncan

bepreventedby

periodicallyrefreshingorrebalancingthedesktoppoolandreducingthesizeofthe

operatingsystemdatatoitsbaselinelevel.

Toaddressdifferentlev elsofthrough putoneachdatastore,youcanvarystorage

overcommitlev elsbetweendifferenttypesofdatastores(forexample,NASversusSAN).

Storageovercommitapplies

onlytodeltadisks.Itdoesnotapplytouserdisksor

standard(non‐linked)clones.

Desktop Recomposition

InFigure 6‐2adesktopcloneislinkedtoreplica1,whichitselfisacopyofParent VM 1.

Arecompositionactionisinitiatedwhentheadministratorselectsadifferentsnapshot

inthesameParentVMordifferentParentVM(asinthisexample).Ineithercaseanew

replicaisprovisioned.

Figure 6-2. Desktop Recomposition

base image + snapshot

bloated

OS data disk

refreshed

OS data disk

user data disk

replica 2—

new base image

after recomposition

replica 1

parent VM 1

base image + snapshot

parent VM 2

recompose

1 2 ... 126 127 128 129 130 131 132 133 134 135 136 ... 231 232

Žádné komentáře

VMware View 4 Premier Add-On: 10 pack Specifikace Strana 131