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Chapter 9 Preserving the State of a Virtual Machine
Theparentsnapshotofavirtualmachineisthesnapshotonwhichthecurrentstate(the
YouAreHerepositioninFigure 9‐3)isbased.Afteryoutakeasnapshot,thatstored
stateistheparentsnapshotofthevirtualmachine.Ifyourevertorgotoanearlier
snapshot,theearl
iersnapsh
otbecomestheparentsnapshotofthevirtualmachine.
Figure 9-3. Parent-Child Relationship Between Snapshots
Information Captured by Snapshots
Asnapshotcapturestheentirestateofthevirtualmachineatthetimeyoutakethe
snapshotwhichincludesthefollowingconfigurations.
Memorystate–Contentsofthevirtualmachinememory
Settingsstate–Virtualmachinesettings
Diskstate–Stateofallthevirtualdisks
Thestateofaphysicaldiskisnotpreservedwhenyoutakeasnapshot.However,the
stateofanindependentdiskisnotaffectedbysnapshots.
Snapshotsoperateonindividualvirtualmachines.Ifyouselectateamofvirtual
machinesandtakeasn
apshot,onlythestateoftheactivevirtualmac
hineispreserved.
See“SummaryandConsoleViewsforTeamsandTheirVirtualMachines”onpage 276.
Whenyoureverttoasnapshot,youreturnthememory,settings,andvirtualdisksof
thevirtualmachinetothestatetheywereinwhenyoutookthesnapsho
t.Tosus
pend,
poweron,orpoweroffthevirtualmachinewhenyoulaunchit,besureitisinthatstate
whenyoutakethesnapshot.
Snapshots 2, 3, and 4
are all children of Snapshot1.
Snapshot 4 is the parent of
the You Are Here position
and therefore the parent
of the virtual machine.
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