Excluding Resource Pool From Script (Snapshot Removal)

[2kool4skool]

Hi All,

I have the below script that has been working well in our test environment. I would like to deploy it to our production vcentre instance.

Get-VM  | `

  Get-Snapshot |  `

  Where-Object { $_.Created -lt (Get-Date).AddDays(-3) } | `

  Remove-Snapshot

I have a need to exclude resource pools that are associated with our View environment. Obviously we do not want to be removing snapshots from the template images for Horizon View.

Is this possible? If so, how would I go about it? I have been unable to find a solid answer on adding an exclusion to a powershell script.

Thanks

[LucD]

One solution could be

Get-ResourcePool | Where {$_.Name -ne "ExcludedResourcePool"} |

Get-VM  |

  Get-Snapshot |

  Where-Object { $_.Created -lt (Get-Date).AddDays(-3) } |

  Remove-Snapshot

[2kool4skool]

Thank you for that!

So if I understand correctly, that is in fact excluding the resource group specified in brackets? If I wanted to specify more then one resource group, would I separate them with a comma or semi-colon?

[LucD]

When you want to be able to exclude more than 1 resourcepool, I would use another operator.

Something like this

Get-ResourcePool | Where {"rp1","rp2","rp3" -notcontains $_.Name} |

Get-VM  |

  Get-Snapshot |

  Where-Object { $_.Created -lt (Get-Date).AddDays(-3) } |

  Remove-Snapshot

This would exclude resourcepools rp1, rp2 and rp3

[2kool4skool]

Very helpful, thank you!

I will test this out and post back on my results.

[dlepinski]

Sorry to dig up an old thread, but this is exactly the situation I'm trying to solve.

Did LucD suggestion work for you, 2kool4skool I tried the script below, but it doesn't seem to be excluding the Normal and Low resource pools.

Add-PSSnapin VMware.VimAutomation.Core

Connect-VIServer -Server myserver

Get-ResourcePool | Where {"2-Normal","3-Low" -notcontains $_.Name} | `

  Get-VM | `

  Get-Snapshot |  `

  Where-Object { $_.Created -lt (Get-Date).AddDays(-0) } | `

  Remove-Snapshot -Confirm:$False -Whatif

I don't know if something changed over the last couple years, but I can't seem to get it to exclude my resource pools. I ran Get-ResourcePool -Name -2-Normal in PowerCLI to make sure it's seeing the 2-Normal resource pool, and it is. So it would seem I have everything in place correctly.

[LucD]

Correct, and you could then use the -notcontains operand.

Get-ResourcePool | Where {"ExcludedResourcePool1","ExcludedResourcePool2" -notcontains $_.Name} |

Get-VM  |

  Get-Snapshot |

  Where-Object { $_.Created -lt (Get-Date).AddDays(-3) } |

  Remove-Snapshot

[dlepinski]

Here's the output I'm seeing:

Add-PSSnapin VMware.VimAutomation.Core

Connect-VIServer -Server myvcenter

Get-ResourcePool | Where {"2-Normal","3-Low" -notcontains $_.Name} | `

  Get-VM | `

  Get-Snapshot |  `

  Where-Object { $_.Created -lt (Get-Date).AddDays(-0) } | `

  Remove-Snapshot -Confirm:$False -Whatif

Name                           Port  User                         

----                           ----  ----                         

myvcenter                 443   myusername   

What if: Performing the operation "Removing snapshot." on target "VirtualMachineSnapshot-snapshot-249".

What if: Performing the operation "Removing snapshot." on target "VirtualMachineSnapshot-snapshot-247".

What if: Performing the operation "Removing snapshot." on target "VirtualMachineSnapshot-snapshot-248".

Each of the 3 test snapshots is in a different resource pool. If I'm understanding correctly, 2 of the 3 should not be there as I'm excluding them. I've tested without the -Whatif and all 3 snapshots are in fact getting deleted. So something doesn't seem to be quite right.

Thank you in advance for the help!

[LucD]

Can you do the following check ?

It should only list VMs that are not in the Resource Pools "2-Normal" and "3-Low".

Get-ResourcePool | Where {"2-Normal","3-Low" -notcontains $_.Name} |

Get-VM |

Select Name,

    @{N='ResourcePool';E={Get-ResourcePool -VM $_ | Select -ExpandProperty Name}}

[dlepinski]

Hmmm... the output listed all VMs in all three resource pools.

[LucD]

Perhaps a stupid question, but are these resourcepool names correct ?

What does the resulting output show ?

[dlepinski]

This is the output I get.

Get-ResourcePool | Where {"2-Normal","3-Low" -notcontains $_.Name} |

Get-VM |

Select Name,

    @{N='ResourcePool';E={Get-ResourcePool -VM $_ | Select -ExpandProperty Name}}

Name                                                                                            ResourcePool                                                                                 

----                                                                                            ------------                                                                                 

Server1                                                                                  3-Low                                                                                        

Server2                                                                                3-Normal                                                                                        

Server3                                                                                   3-High             

I also ran Get-ResourcePool -Name 2-Normal and saw the expected output. I can do that for all 3 resource pools successfully.

[LucD]

The numbers at the beginning of the resourcepool names don't seem to correspond.

[dlepinski]

Removing the numbers and dash doesn't improve the results. Running it as this gives me the same output; lists all servers in all resource pools.

Get-ResourcePool | Where {"Normal","Low" -notcontains $_.Name} |

Get-VM |

Select Name,

    @{N='ResourcePool';E={Get-ResourcePool -VM $_ | Select -ExpandProperty Name}}

However, if I run Get-ResourcePool -Name "Normal" it will fail saying that it can't find resource pool 'Normal'. I assume the above script work because it's looking for resource pools containing those names.

[dlepinski]

Additionally, if I comment out Get-VM I only see the 1-High resource pool. So I must need something more to go along with Get-VM?