NetApp has recently released a support PowerShell
module for managing Data OnTap.
You need to unzip and import the module
import-module DataOnTap
I'm just getting started with it, but I've noticed a few inconveniences. One of the first tasks I would like to do is list all snapshots older than a certain date.
get-navol myvolname | get-nasnapshot
will return a list of snapshots on a given volume, but unfortunately the time is stored as an integer. A little playing around discovered this will provide the correct information:
Get-NaVol myvolume | Get-NaSnapshot | select Name, @{Name="AccessTime"; Expression = {([datetime]"1/1/1970").AddSeconds($_.AccessTime).ToLocalTime()}}
It is possible to find snapshots older than one week using a command like:
Get-NaVol | Get-NaSnapshot | select Name, @{Name="AccessTime"; Expression = {([datetime]"1/1/1970").AddSeconds($_.AccessTime).ToLocalTime()}} | where-object {$_.AccessTime -lt (Get-Date).AddDays(-7)}
Hopefully version two of the module will use native data types to make this all easier.