topic Re: snapdrive snapshot retention in Microsoft Virtualization Discussions

snapdrive snapshot retention

JSHACHER11 — Thu, 05 Jun 2025 05:59:10 GMT

Hi guys,

we schedule snapdrive snapshots with a ps1 script:

++++++++++++++++++++++++++++++++++++

$date=(Get-Date -Format dd-MM-yyyy_HH-mm)

sdcli snap create -s $date -D e

++++++++++++++++++++++++++++++++++++

I'm after a script that will delete any snapdrive snapshots older than 5 days

note: we don't use snapmanager or DFM

Thanks

Re: snapdrive snapshot retention

bsti — Fri, 05 Jul 2013 03:09:41 GMT

Try something like this:

function Remove-Snapshots()
{
  [CmdletBinding(SupportsShouldProcess=$true)]
  param
  (
    [Parameter(Mandatory=$true,Valuefrompipeline=$true)] $Volume,
    [string] $SnapName = "*",
    [int] $DaysOld = 5
  )
  begin
  {}

  process
  {
    foreach ( $vol in $Volume )
    {
      $volObj = $vol
      
      if ( $vol -is [string] )
      {
        #  If user provided a volume name as a string
        $volObl = Get-NaVol -Name $vol
      }
      
      $vol | Get-NaSnapshot | Where-Object -FilterScript { $_.Name -ilike $SnapName -and $_.Name -inotmatch "\.\d+?$" -and (New-TimeSpan -Start $_.AccesstimeDt).totalDays -gt $DaysOld } | Remove-NaSnapshot
    }
  }  
}
Import-Module dataontap
Connect-NaController controller1 -rpc
Get-NaVol | Remove-Snapshots
"vol1" | Remove-Snapshots

Re: snapdrive snapshot retention

JSHACHER11 — Fri, 05 Jul 2013 08:33:09 GMT

Thank you

I saw this article - can this be implemented in my case?

http://blogs.technet.com/b/heyscriptingguy/archive/2007/10/31/hey-scripting-guy-how-can-i-use-windows-powershell-to-delete-all-the-files-in-a-folder-older-than-90-days.aspx

let's say that I call the snapshots yyyyMMddHHmm - this will give me something like 201307050935 and then somehow check the difference between the current date and the snapshot name and if greater than 5 days, remove the snapshot

Cheers

Re: snapdrive snapshot retention

JSHACHER11 — Fri, 05 Jul 2013 13:20:25 GMT

cracked it:

Get-NaVol vol_test | Get-NaSnapshot | where-object {$_.Created -lt (Get-Date).AddDays(-5)} | remove-nasnapshot

Re: snapdrive snapshot retention

bsti — Fri, 05 Jul 2013 19:31:47 GMT

Glad you figured it out. Looks remarkably similar to what I posted above