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How to zoom in on snapshot size per virtual machine

I was wondering if there's an easy way to see wich virtual machines are causing exceptional snapshot growth inside NFS-based VMware datastores? 

Re: How to zoom in on snapshot size per virtual machine

Hi Hans and welcome to the Communities!

There is nothing obvious that springs to mind to do what you are looking for.

Two things though:

- I would try to figure out whether OS-level defragmentation has been run / is scheduled on any of these VMs

- Are you running deduplication on this volume? If snapshots growth is 'exceptional', then it may simply mean dedupe savings have been shifted into snapshots (http://communities.netapp.com/message/22012#22012)

Regards,
Radek

Re: How to zoom in on snapshot size per virtual machine

Best I've been able to do is watch system monitors of the guests for high disk i/o - that tells me which one is changing blocks, which would then show as snaps.  Make sure you're not snapping vswp as well (should be on a different volume) as that will inflate your snapshots also.

Bill

Re: How to zoom in on snapshot size per virtual machine

Hans Onderdijk wrote:

I was wondering if there's an easy way to see wich virtual machines are causing exceptional snapshot growth inside NFS-based VMware datastores?

You may not be able to tell growth, but there is a tool that lets you see ALL the snapshots at once from the VM's so you can keep an eye on them..

This is easier by pointing it to a vCenter but it will work at the ESX host level.

http://www.robware.net/