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Hyper-V 每日备份脚本

原英文标题：Hyper-V daily backup script

To create checkpoint for each virtual machine:

Get-VM | Checkpoint-VM -Name {$_.Name} -SnapshotName "Daily Snapshot $((Get-Date).toshortdatestring())"

To delete checkpoint older than 14 days:

Get-VM | Get-VMSnapshot -VMName {$_.Name} | Where-Object {$_.CreationTime -lt (Get-Date).AddDays(-14)} | Remove-VMSnapshot

Put these two commands into a powershell script, and let the task scheduler to invoke it at 4 am everyday:

schtasks /create /tn vmbackup /tr "powershell -NoLogo -WindowStyle hidden -file C:\Hyper-V\backup.ps1" /sc daily /st 04:00 /ru SYSTEM