2012-03-15 04:44 PM
We mount multiple NFS datastores from Netapp to our VM environment. I am noticing that our smvi snapshot is always big. I know that most of these vm instance have defragmentation running as a scheduled task (legacy task from when they are still physical servers) I know it is not advisable to defragment a LUN, is it the same with VMs inside an NFS datastore?
2012-03-15 05:09 PM
It is very likely the defrags are causing your large rate of change.
The same does hold true for NFS as for VMFS on a LUN ...
I hope this answer has been meaningful to you !
At your service,
2012-03-16 03:34 AM
"VMs stored on NetApp storage arrays should not use disk defragmentation utilities because the WAFL file system is designed to optimally place and access data at a level below the guest operating system (GOS) file system."