topic Get-NaSnapshotDelta in Microsoft Virtualization Discussions

Get-NaSnapshotDelta

JSHACHER11 — Thu, 05 Jun 2025 05:30:38 GMT

Hi guys,

I am trying to list Delta of all snapshots in a volume

this doesn't work:

$snaps = Get-NaSnapshot -TargetName vol1

$snaps | foreach {Get-NaSnapshotDelta | ft -AutoSize}

neither does this:

foreach ($snap in $snaps) {Get-NaSnapshotDelta}

nor this:

foreach ($snap in $snaps) {Get-NaSnapshotDelta $snap}

(still asking for snapshot name)

any idea?

tnx

billyd — Fri, 15 Aug 2014 11:28:03 GMT

If you are looking for the sum of all of the snapshots in a volume give this a shot:

$v = get-nasnapshot -targetname <VOLUME NAME> | measure-object total -sum;[math]::truncate($v.sum / 1gb)

I'm not sure how to get it done without a variable.

JGPSHNTAP — Fri, 15 Aug 2014 12:25:06 GMT

Yes, we need to understand why you are trying to use snapshot delta in the first place..

Billyd, -

IMHO - Here is the way you should do it using the cmdlets from netapp

convertto-formattednumber ((get-navol vol0 | get-nasnapshot | measure -property Total -sum).sum) data

size "0.0"

4.5 GB

You can you system.math .net functions, but yours should look something like this

[math]::round(((get-navol vol0 | get-nasnapshot | measure -property Total -sum).sum/1gb),2)

4.5

billyd — Fri, 15 Aug 2014 12:48:34 GMT

Thanks JGP - I didn't know about the convertto-formattednumber cmdlet. Much better than what I was using.

JGPSHNTAP — Fri, 15 Aug 2014 12:51:15 GMT

Yeah, it was written for the module so I figured I use it when I can..

If not, i use the .net math functions

JSHACHER11 — Fri, 15 Aug 2014 13:22:08 GMT

thanks guys!