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.
you can install "esx host utilities 5.2.1" on your esx server. there are tools inside, which you can use to mbrallign your vmdk files and check if there need it. example : mbralign - tests and fixes VMDK partition alignment
else you can find out the starting off set of you windows server under "system information""components/storage/disk"