We have now all of a sudden started seeing similar issues in our environment on some older 2008 R2 VMs running on both M3 and M3 blades. Main error message is LSI_SAS - I've seen these issues all over the internet and through this board but nothing has fixed our issue as yet. Thinking that we need to do a full UCS firmware upgrade at this point but would like to know the root cause and any workarounds.
UCS Firmware- INFRA - 2.2.3b, M4 blades - 4.1.30c, M3 blades - 2.2.3b
Core - Nexus 5548s
Storage - Nimble AF-5000 with iSCSI
VMware - 6.0 U2
Windows Errors - LSI_SAS, Event ID 129, Reset to device, \Device\RaidPort0, was issued. OR Disk, Event ID 51, An error was detected on device \Device\Harddisk0\DR0 during a paging operation.
This has just started to become a problem after running this config for many years (3-5 years at least, more for the UCS config). Anyone come up with a solid root cause and/or solution? The proposed VMware KB article says to update the LSI scsi controller drivers in the OS, but that hasn't helped on any affected VMs. All vendors say its not their issue so as far as I can tell, the UCS is the only commonality at this point.
Thanks!