I am trying to delete old snapshots after patching using PowerCLI. The code i am using now is:
Get-VM | Get-Snapshot | Remove-Snapshot -confirm$false
It works great...but it only removes one at a time, and i would like it to do 2-3 at a time. Is this possible?
Thanks in advance!
This code will remove multiple snapshots from all virtual machines:
Get-VM | Get-Snapshot | % { Remove-Snapshot $_ -Confirm:$false }
I would recommend selecting a single virtual machine and testing first:
$VM = Get-VM -Name 'My Virtual Machine'
$VM | Get-Snapshot | % { Remove-Snapshot $_ -Confirm:$false }
Tested to work on PowerCLI 6.5.
I would recommend taking a look at the 'RunAsync' parameter. This will create the task and then move onto the next task without waiting for the prior task to complete.
Example:
Get-VM | Get-Snapshot | Remove-Snapshot -RunAsync -Confirm:$false
Related
I can set a tag for the VM through Windows Admin Center, but I can't find how to view this tag through powershell.
I need this for a script so that I take all VM names with a specific tag
UPD:
I am using hyper-v server core 2019
Thanks to #zett42, I solved the problem, albeit in a different way
$vm = Get-VM my_vm
$vm | Set-VM -Notes "mytag" -Confirm:$false
$VMs = Get-VM | Where-Object Notes -match "mytag" | Select-Object -Expand Name
$VMs | Out-File ./vms.txt
I would like to export some Server Statistics from a Failover Cluster System.
My plan is to show with the Get-VHD command all VHD used on the VMs on my host.
So I was Trying to use:
Get-VM | select-object VMID |get-vhd |ft
This gives me a list the
"ComputerName, Path, VHDFormat,VHDType,FileSize,MinimumSize, LogicalSectorSize, PhysicalSectorSize"
Sadly the ComputerName is not the VMName but just the Name of the Host.
Now when I run the Get-VM command I get the Name and here it is actually the VMName.
Is there a nice way to get the real VMnames in the Output of Get-VHD?
I am fairly new to Powershell and I could not find a solution that worked... Most of the "sniplets" found here did not work at all or did not return the VMname...
Thank you for your suggestions =)
Sorry, I think my Title is not that well described, I was not sure how this funktion is called.
Untested, but you could use a ForEach-Object loop and capture the Name property from the Get-VM cmdlet. Then go on with Get-VHD and combine the output:
Get-VM | ForEach-Object {
$name = $_.Name
$_ | Get-VHD | Select-Object #{Name = 'Name'; Expression = {$name}}, *
} | Format-Table -AutoSize
Good Evening, I am developing a C# too, that is supposed to help users to control VMs on a server.
Now I have created the functions to create and erase Snapshots of these VMs and want to create a function to list all Snapshots of a VM including a view selected Snapshot parameter. With:
Invoke-Command -ComputerName ServerName -ScriptBlock { Get-VMSnapshot -VMName VMName |Select-Object}
I am able to get nearly all information that are requested but the total size of the Snapshot itself.
However I could get the size with this command:
Invoke-Command -ComputerName ServerName -ScriptBlock {Get-VM -VMName VMName | gci -r -Filter *.avhd*| select #{Name="MB";Expression={$_.Length / 1Mb}}, *}
Not to get the two results together I compared the creation time of these two with a tolerance of up to 10 seconds and took the closest one. (Primitive I know), but now it becomes even more complicated.
If I now use a Snapshot to set the VM to this state, the time of the File creation changes and so my previous method stops working completely.
Why I want to know is, is there a better way to compare these two results or even better, to get the Snapshot size without such primitive comparisons?
Thanks in advance for the help.
Below one-liners should suffice your need.
1)
Get-VM | Sort Name | Get-Snapshot | Where { $_.Name.Length -gt 0 } | Select VM,Name,Created,SizeMB
2)
Get-VM | Format-Table Name, #{Label="NumSnapshots";Expression={(Get-Snapshot -VM $_ | Measure-Object).Count}}, #{Label="TotalSnapShotSizeMB";Expression={(Get-Snapshot -VM $_ | Measure-Object -Sum SizeMB).Sum}}
Hope it helps.
I am new to PowerShell scripting. I am trying to get number of snapshots have been created for a VM. I am able to get snapshots information of the VM's using the below command.
get-vm Test_sub | Get-Snapshot
It is giving complete information but is there any way I can count the number of snapshots?
Thanks,
Sasikumar.
If Get-Snapshot returns one output for each snapshot then use Measure-Object (alias Measure) to see the count e.g.:
get-vm Test_sub | Get-Snapshot | Measure
If you need the value in a script then:
$count = (get-vm Test_sub | Get-Snapshot).length
I'm working on a small script that will get all the snapshots in a VM and remove all snapshots in the VM except for the 6 newest snapshots, based off the description.
Right now my code looks like this:
get-snapshot -vm "test" | sort -property description | remove-snapshot ?
I am using get-date to make the description for each VM be the date on which it was created, and want to remove all but the 6 newest snapshots. What am I missing with my script to accomplish this task?
I was thinking of using the -getchildren however I'm unable to figure out how to get it to where it would delete snapshots 7 and on.
A snapshot has a property called Created so you can sort on this property and skip the first 6. Test this in a test environment and remove the WhatIf switch to delete the snapshots.
Get-Snapshot -VM test |
Sort-Object Created |
Select-Object -Skip 6 |
Remove-Snapshot -Confirm:$false -WhatIf