Hi All,
I detected recently a bad event : Device naa.60080e50001807f8000005224d79f052 performance has deteriorated. I/O
latency increased from average value of 7007 microseconds to 144414 microseconds.
This event appen on our 5 Esxi 5.1 host and for all datasores. We called to our SAN vendor and upgraded all firmware for our IBM DS5020 ans expansion but we still have the problem.
I also upgraded the 5 esxi5.1 with upgrade manager, problem still there.
This event seems to get any type of VMFS Datasotre, we actually have some old 3.33 and couple of new 5.58 datastore.
The Hardware server are 2 servers HP BL460C G1 ( i know they are not supported but i also tried to shutdown them and kick em off the cluster but the latency still present on other host) 1 HP BL460C G6 (supported), 1 HP BL460C G7 (supported) and 1 Cisco UCS C250-M2 (supported)
We need help .. Thank you