I'm running the VMware ESXi 5.5 hypervisor and see a lot of error messages like below in its /var/log/vmkernel.log file:
<timestamp> cpu11:34032 opID=1ad4dfbe)<3>ata1.00: bad CDB len=16, scsi_op=0x9e, max=12
The SCSI operation with code 0x9e is SERVICE ACTION IN (16), which is 16-byte command. So, why does the server complains about the max=12 limitation? What might be a reason to get these messages? What should I change to get rid of them?