We recently upgraded esxi 5.5 U3 to esx 6.5 U2 with cisco customized image on C240-M4S Server. We first upgrade cisco firmware from 2.0(6) to 4.0(1c) and then esxi host upgrade from 5.5 u3 to 6.5 U2.(Please find the attached text to know Driver and FW details before and after upgrade)
After upgrade, hosts are going not responding state/frozen state where in esxi hosts are reachable via PING over network, but unable to re-connect host back to vCenter.
During host not responding state ,we can login into putty with multiple session ,however we can’t see/run any commands (like, if df- h, to view logs under cat /var/log ) .When we ran df-h, hosts won’t display anything, gets struck until we close putty session and then can re-connect .
During host not responding state, vms continue to be running, but we can’t migrate those vms into another host and also we are unable to manage those vms via vCloud panel .
We have to reboot host to bring back host and then will connect to vcenter .
We working with Vmware and Cisco since from 3 weeks ,no resolution yet .
We can see lot of Valid sense data: 0x5 0x24 0x0 logs in vmkernel.logs and VMware suspect something with the LSI MegaRAID (MRAID12G) diver. So Vmware asked to contact hardware vendor to check hardware/firmware issues and LSI issues as well
2019-02-18T19:51:27.802Z cpu20:66473)ScsiDeviceIO: 3001: Cmd(0x439d48ebd740) 0x1a, CmdSN 0xea46b from world 0 to dev "naa.678da6e715bb0c801e8e3fab80a35506" failed H:0x0 D:0x2 P:0x0 Valid sense data: 0x5 0x24 0x0
This command failed 4234 times on "naa.678da6e715bb0c801e8e3fab80a35506"
Display Name: Local Cisco Disk (naa.678da6e715bb0c801e8e3fab80a35506)
Vendor: Cisco | Model: UCSC-MRAID12G | Is Local: true | Is SSD: false
Cisco did not see any issues with Server /hardware after analyzing Tech support logs and also we performed Cisco diagnostics test on few servers,all components tests/ checks looks good .Only one recommendation given by cisco is to change Power Management policy from balance to High Performance under esxi host->configure->Hardware->Power Mgmt->Active policy ->High Performance
Can someone help me to find cause/fix .
Thanks in advance
all components tests/ checks looks good