HW Raid controller error
From this thread (https://bugs.launchpad.net/ubuntu/+source/linux/+bug/618542):
I found an answer to the ERROR: (0x03:0x0101): Invalid command opcode:opcode=0x85 problem:
http://kb.lsi.com/Print16532.aspx : "This error can be safely ignored."
What is happening is that the kernel is sending a scsi code 0x85 (which from http://www.t10.org/lists/op-num.htm is 85 ATA PASS-THROUGH(16). This is presumably to check something on the disk itself (temp or some other reported value) and the card/drive is not able to respond appropriately.
If you are having other errors with the drives, then address those, but if this is the only message you see and everything appears fine otherwise, feel free to ignore.