VMware Workstation 7 Manual do Utilizador descarregar pdf (Página 206)

Workstation User’s Manual

206 VMware, Inc.

Snapshot Conflicts

Avoidtakingasnapshotwhenapplicationsinthevirtualmachinearecommunicating

withothercomputers,especiallyinproductionenvironments.

Supposeyoutakeasnapshotwhilethevirtualmachineisdownloadingafilefroma

serveronthenetwork.Afteryoutakethesnapshot,thevirtualmachinecontinues

downloadingthefile,communicatingitsprogresstotheserv

er.Ifyoureverttothe

snapshot,communicationsbetweenthevirtualmachineandtheserverareconfused

andthefiletransferfails.

Orconsideracaseinwhichyoutakeasnapshotwhileanapplicationinthevirtual

machineissendingatransactiontoadatabaseonaseparatemac

hine.Ifyourevertto

thatsnapshotafterthetransactionstartsbutbeforeitiscommitted,thedatabaseis

likelytobeconfused.

Enable or Disable Background Snapshots

Whenyousetapreferencetotakesnapshotsinthebackground,youcancontinue

workingwhilethestateofthevirtualmachineisbeingpreserved.Aprogressindicator

forthebackgroundsnapshotisdisplayedinoneofthecornersoftheWorkstation

window.

Beforeyoubegin,onLinuxhosts,runWorkstationastherootuser

.Onlyrootusersare

allowedtochangethispreferencesetting.

IfyoutakeanothersnapshotorreverttoasnapshotbeforeWorkstationcompletesa

pendingsnapshotoperation,aprogressdialogboxappears.Youmustwaitforthe

pendingsnapshotoperationtofinishbeforethenextsnapshotorresumeo

peration

begins.

Enablingbackgroundsnapshotsforahostwithslowharddiskscanadverselyaffect

performance.Ifyouexperiencesignificantperformanceproblemswhentakingor

restoringsnapshots,disablebackgroundsnapshots.

To enable or disable background snapshots

1 ChooseEdit>Preferences.

2ClickthePrioritytab.

3UsethecheckboxintheSnapshotssectiontoenableordisablebackground

apsh

ots.

4ClickOKandrestartthevirtualmachine.

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VMware Workstation 7 Manual do Utilizador Página 206