VMware Virtual Machine total disk latency

RonB — Wed, 04 Jun 2025 19:07:22 GMT

I recently migrated all of my VMware LUNs from an IBM XIV to an 8020 and now I am getting 'Virtual machine total disk latency' alerts from VMware. I did not get these when running on XIV.

I am monitoring my 8020 with the OnCommand Plugin for Microsoft in SCOM and I'm not getting any latency alerts from SCOM.

'statistics start -sample-id lun_stats -object lun' is showing LUN latency in microseconds, so there doesn't appear to actually be a performance issue with the 8020.

Is there some tuning I need to do in VMware (I have VSC installed), or are these VMware alerts just unreliable? If so, any thoughts on why they were occuring with the XIV?

Re: VMware Virtual Machine total disk latency

Jeff_Yao — Wed, 21 Sep 2016 01:45:19 GMT

could be this?

https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1025176

otherwise, maybe openning a case is a better solution?

topic Re: VMware Virtual Machine total disk latency in ONTAP Hardware

VMware Virtual Machine total disk latency

Re: VMware Virtual Machine total disk latency