My trusty 960C running ontap 7.3.3 is under increasing strain from the number of vmware guests that are running on it.
So in an effort to understand the problem a bit more, I'm trying to figure out which guests are using the most I/O . I can see which hosts are busiest with nfsstat , but I would really like to drill down to each the guest.
Is there an ontap command will show me which files are busiest on the filer? I think this would be a good proxy to look at when determining which guests (or which class of guests) is using up the bulk of the I/O . Any other techniques or suggestions would be most appreciated.
I suppose I could try to come at this from the VMware end too - but it seems that the performance data recorded from NFS datastores is patchy at best.
TIA,
Graham Bucknell.