We are starting to notice some latency between our FAS2050 and our vmware cluster. our 2050 is on ontap 7.2.4L1 and capacity on the aggr's are above 90%. we are running esx 3.5update5. a couple of questions are
1) what is the max iops that a 2050 controller head can handle?
2) anything on the controller side that would cause the vmware quest to see upwords of 200ms latency?
When you look at the output with average CPU load, your disks are actually working harder & there is more network traffic than when CPU peaks. Normally that would indicate some internal process is hammering CPU.
My first guess is de-duplication scan may be causing this CPU peak.
Could You please suggest what might cause so heavy filler CPU load? Is there any way to check it (networking, disk checksum calculations etc.)? We're also having performance issue especially with Thread Link : 13413.