Today one of my admins noticed the following errors on a 6.0-REL-p4 system (Sun X4100) with an Adaptec 2230SLP RAID card: aac0: COMMAND 0xffffffff80841700 TIMEOUT AFTER 36 SECONDS aac0: COMMAND 0xffffffff80846160 TIMEOUT AFTER 36 SECONDS aac0: COMMAND 0xffffffff80843370 TIMEOUT AFTER 36 SECONDS aac0: COMMAND 0xffffffff80841700 TIMEOUT AFTER 56 SECONDS aac0: COMMAND 0xffffffff80846160 TIMEOUT AFTER 56 SECONDS aac0: COMMAND 0xffffffff80843370 TIMEOUT AFTER 56 SECONDS They were all logged at the same timestamp in /var/log/messages. The card is hooked up to a Dell 14-disk hot-swap array with U320 drives and backplane. I poked around and found some references to this on the mailing lists for FreeBSD 4.x and 5.1, with references to "should be fixed in 5.2", but that seemed to be relating to the system locking up at boot. I don't have that problem. Some messages also indicate that it could be a firmware issue and updating firmware solved it for them. This worries me since this system was built new last January so should have recent firmware in the drives. Is this still a problem for other folks? Also, what utilities can I use on FreeBSD 6 to probe the drives for firmware. I know with the LSI controllers the LSI command line utilities give you this info, but the Adaptec "aaccli" program doesn't have a way to find this out. Also what strategy do people use for updating the firmware on drives hooked up to RAID cards? The last time I tried this the updating program (dos boot CD) was unable to see the physical drives past the card.