vCenter | Snapshot Operations

Hi Folks,

Today someone asked about the snapshot. Like if I need to take snapshot from PowerShell then how to? if I quiesce the snapshot in PowerShell then how-to etc. etc. so, I thought to summarize as many as I can snapshot operations in a single page and share with all. Here you go..

Connect-VIserver VC-IP

#To take a snapshot for a single VM without quiescing and memory
$VM = read-host "Enter the VM Name "
New-Snapshot -VM $VM -Name vcnotes_snap -Description "This is test snap"
#with quiesced on
New-Snapshot -VM $VM -Name vcnotes_snap -Description "This is test snap" -Quiesce
#With memory state
New-Snapshot -VM $VM -Name vcnotes_snap -Description "This is test snap" -Memory
#with Memory and quiesce both
New-Snapshot -VM $VM -Name vcnotes_snap -Description "This is test snap" -Memory -Quiesce

#take snapshot for mulitple VMs and with quiesced off and no memory state
foreach ($AVM in (Get-content -path C:\Temp\vmlist.txt)){New-Snapshot -VM $AVM -Name vsnap -Description "This is test"}
#with quiesced on
foreach ($AVM in (Get-content -path C:\Temp\vmlist.txt)){New-Snapshot -VM $AVM -Name vsnap -Description "This is test" -Quiesce}
#with memory state
foreach ($AVM in (Get-content -path C:\Temp\vmlist.txt)){New-Snapshot -VM $AVM -Name vsnap -Description "This is test" -memory}
#with memory and quiesce both
foreach ($AVM in (Get-content -path C:\Temp\vmlist.txt)){New-Snapshot -VM $AVM -Name vsnap -Description "This is test" -Quiesce -Memory}

#Snapshot Consolidation
#For all Vms which needs consolidation
Get-VM | Where-Object {$_.Extensiondata.Runtime.ConsolidationNeeded} | foreach {$_.ExtensionData.ConsolidateVMDisks_Task()}
#for any single VM
$vmname = Read-Host "Enter VM Name"
$vm = Get-VM -Name $vmname
$vm.ExtensionData.consolidateVMDisks_Task()

#snapshot deletion
#to delete all snapshot older than specific days for single VM. In order to delete all snapshot taken today just replace 10 with 0 in below command
$vmname = Read-Host "Enter VM Name"
Get-VM -Name $vmname | Get-Snapshot | Where {$_.Created -lt (Get-Date).AddDays(-10)} | Remove-Snapshot
#delete snapshot on multiple VMs older than specific days
$VM = Get-Content -Path C:\temp\vmlist.txt
Get-VM -Name $VM | Get-Snapshot | Where {$_.created -lt (Get-Date).AddDays(-10)} | Remove-Snapshot

#delete all snapshot on a VM
$VM = Read-Host "Enter VM Name"
Get-VM -Name $VM  | Get-Snapshot | Remove-Snapshot
#delete specific snapshot on a VM
$VM = Read-Host "Enter VM Name"
Get-VM -name $VM | Get-Snapshot | Select VM,Name,Created,SizeGB | FT
Write-Host "Tell me the snapshot name from above list"
$snapname = Read-Host "enter name here"
Get-VM -Name $VM | Get-Snapshot -name $snapname | Remove-Snapshot


#Revert to the last snapshot
$VM = read-host "Enter VM Name" 
Get-snapshot -VM $VM | select name 
Write-host "Tell me the name of Snapshot from the above list which you want to revert to"
Get-Snapshot -VM $VM -Name Test1 | Set-VM $VM


Let me know if anyone wants me to add anything to the list.



Thank you,
vCloudNotes