FreeBSD 9.1 RC1 and CAM issues with old SCSI drive
Alexander Motin
mav at FreeBSD.org
Sat Sep 8 11:30:03 UTC 2012
Hi.
It seems like both of your problems have the same cause: device report
wrong size of INQUIRY data, that causes failure on attempt to fetch it.
With FreeBSD 9.0 it caused domain validation failures and so reduced
transfer rate, on 9.1 it also causes detection failure. I am not sure
why detection worked on 9.0, it needs some deeper code comparison, but I
think it is mostly device problem.
Could you send me output of such commands from FreeBSD 9.0:
camcontrol cmd da0 -vEc "12 00 00 00 24 00" -i 36 - | hd
camcontrol cmd da0 -vEc "12 00 00 00 fe 00" -i 254 - | hd
camcontrol cmd da0 -vEc "12 00 00 01 00 00" -i 256 - | hd
--
Alexander Motin
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