ESXi 6.5 array latency

rayzouz — Thu, 21 Oct 2021 10:01:06 GMT

Hello guys,

I'm coming with an issue, asking for help if anyone has ideas

I got an HP ProLiant DL385p Gen8 running ESXi 6.5.0 Update 3.

After an electric breakdown, the whole server and its VMs started showing performance issues (very slow on every aspects : virtual cpus, ram, etc...).

The only errors I could find in the whole logs are in the VMkernel warnings :

2021-10-20T21:29:51.193Z cpu6:349581)WARNING: SVM: 5631: scsi0:0 VMX took 2280 msecs to send copy bitmap for offset 15032385536. This is greater than expected latency. If this is a vvol disk, check with array latency.

ILO shows green regarding disks and array controllers.

After a normal reboot, still show performance issues.

After another reboot (few days later), it's now working well.

If you guys have any ideas and can help me in this, it'd be great !

topic ESXi 6.5 array latency in AppDefense Discussions

ESXi 6.5 array latency