Powercli one liners

Find  RDMs in your environment

This process will find any RDMs in your environment. I’ve found it useful as we attempt to phase out use of RDMs.

Get-VM | Get-HardDisk -DiskType “RawPhysical”,”RawVirtual” | Select Parent,Name,ScsiCanonicalName,DiskType

Cleanup Backup Snapshots

A common problem in our environment are “Consolidate” snapshots that our backup process leaves behind.  Find and irradicate those with this quick command:

Get-VM | Sort Name | Get-Snapshot | Where { $_.Name.Contains(“Consolidate”) } | Remove-Snapshot

Find Lost or Unknown Snapshots

Our backup process also seems to leave behind orphaned snapshots, snapshots vCenter or ESX no longer knows about. vCenter sees the VM in linked-clone mode, where the VMX file points to a snapshot VMDK instead of the original parent.

Compare-Object $(Get-VM | SORT | Get-Harddisk | WHERE { $_.Filename -like "0000" } | SELECT @{Name="VM";Expression={$_.Parent}} | Get-Unique -asstring) $(Get-VM | Get-Snapshot | SELECT VM | Get-Unique -asstring) -Property VM

Rescan All HBA and New Storage

get-cluster -name “clustername” | get-vmhost | Get-VMHostStorage -RescanAllHBA

All Hosts in VC:
get-vmhost | Get-VMHostStorage -RescanAllHBA

List of VM’s created in the last 14 days

Get-VIEvent -maxsamples 10000 -Start (Get-Date).AddDays(–14) | where {$_.Gettype().Name-eq “VmCreatedEvent” -or$_.Gettype().Name-eq “VmBeingClonedEvent” -or$_.Gettype().Name-eq “VmBeingDeployedEvent”} |SortCreatedTime -Descending |Select CreatedTime, UserName,FullformattedMessage

List of VM’s removed in the last 14 days

Get-VIEvent -maxsamples 10000 -Start (Get-Date).AddDays(–14) |where {$_.Gettype().Name-eq “VmRemovedEvent”} |SortCreatedTime -Descending |Select CreatedTime, UserName,FullformattedMessage