Veeam, PowerShell and SAN snapshot

So a week or so ago I wrote a post about using PowerShell to add snapshots to a SAN found in Veeam Backup & Replication. It was a quick test to see if it worked, now I’ve slightly improved the script.

The Get-HP4* cmdlets is specifically for HPE StoreVirtual VSA/P4000/LeftHand line. If you have another supported SAN Storage system use the correct cmdlets:

NetAPP Storage Systems
HPE 3Par StoreServ Storage Systems
HPE StoreVirtual Storage Systems
EMC VNX Storage Systems

You can accomplish the same thing using the management tool for the SAN, taking recurring snapshots. But in the case of HPE StoreVirtual it’s a licensed feature and it can only occur every 30 minutes so if you need it more often or you’re lacking the license you can use the PowerShell script instead.

Add-PSSnapin VeeamPSSnapIn -ErrorAction SilentlyContinue

$source_storage = ‘Veeam-VSA-MGMTG’
$source_cluster = ‘veeam-vsa-cluster’
$source_vol_name = ‘datastore1’
$snapshot_name = ‘Oh_snap_’+(Get-Date -Format MMddhhmm)

#Create a new snapshot
try {
$getvolume = (Get-HP4Storage -Name $source_storage | Get-HP4cluster -Name $source_cluster | Get-HP4Volume -name $source_vol_name)
‘getvolume-Name: ‘ + $getvolume.Name
‘getvolume-InternalId: ‘ + $getvolume.InternalId
‘getvolume-IsThin: ‘ + $getvolume.IsThinProvision
‘getvolume-Size: ‘ + $getvolume.Size

$getvolume | Add-HP4Snapshot -name $snapshot_name
} catch {
‘Failed to find storage, cluster or datastore’
‘Unable to create snapshot’

#Remove the oldest snapshot if more than 4 are available
$getsnapshot = ($getvolume | Get-HP4Snapshot | Where-Object {$_.Name -like ‘Oh_snap_*’})
$snapshot_count = @($getsnapshot).Count

if ($snapshot_count -ge 4) {
$getsnapshot | Sort-Object creationtimeutc | Select-Object -First 1 | Remove-HP4Snapshot