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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