Random performance issues

HI all,

I know this is a wide issue and I'm not pointing a finger at the vnxe but I was wondering if anyone else is experiencing random performance nosedives on the 3100. At the moment I am running an entirely virtualised environment on a 3100 with vsphere 5 essentials plus with around 50-70 users. I have the exchange box on the performance pool along with a TS box and a bespoke database app. The DC's are currently running in the capacity pool.

However every so often the performance takes a huge dive so much so that it affects the all systems globally, but there is an increased read/write to SPB although because todays performance hit was at just after 9 I can't tell if this is due to user logon activity or not. One of the domain controllers did log this at the same time though.

 

NTDS (468) NTDSA: A request to read from the file "C:\WINDOWS\NTDS\ntds.dit" at offset 21184512 (0x0000000001434000) for 8192 (0x00002000) bytes succeeded, but took an abnormally long time (69 seconds) to be serviced by the OS. In addition, 0 other I/O requests to this file have also taken an abnormally long time to be serviced since the last message regarding this problem was posted 722978 seconds ago. This problem is likely due to faulty hardware. Please contact your hardware vendor for further assistance diagnosing the problem.

I'm thinking that it would be worth moving the DC's vmdks across to the performance pool which might cure the issue but I wondered if anyone else had noticed performance issues with the vnxe as well?

Regards

Dale