ATS miscompare in vmkernel.log on ESXi
Applies to
- VMware ESXi 5.5 and newer
- SAN
- iSCSI
- FCP
- VMFS 5 and 6
Issue
vmkernel.log
contains nmp_ThrottleLogForDevice type messages for failing ATS heartbeats due to MISCOMPARE in the check condition from storage
Example:
cpu47:4103824)NMP: nmp_ThrottleLogForDevice:3647: Cmd 0x89 (0x439d87291800, 67336) to dev "naa.600a09803830393053244b7478695835" on path "vmhba1:C0:T26:L43" Failed: H:0x0 D:0x2 P:0x0 Valid sense data: 0xe 0x1d 0x0. Act:NONE