misc/78868: Adaptec 29160 fails with IBM LTO-2 drive if disconnect is enabled

[Ben Laurie]

>Number:         78868
>Category:       misc
>Synopsis:       Adaptec 29160 fails with IBM LTO-2 drive if disconnect is enabled
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Mar 15 14:20:05 GMT 2005
>Closed-Date:
>Last-Modified:
>Originator:     Ben Laurie
>Release:        4.11
>Organization:
>Environment:
FreeBSD backup.ben.algroup.co.uk 4.11-STABLE FreeBSD 4.11-STABLE #0: Thu Mar  3 14:39:07 GMT 2005     root at backup.ben.algroup.co.uk:/usr/obj/usr/src/sys/GENERIC  i386

>Description:
I am running Amanda on this machine. If I have disconnects enabled in the 29160 BIOS for the tape drive (which is the only SCSI device connected) then at some point during the taping I get a slew of debugging information (which I have not preserved, but am quite willing to replicate if asked) and the tape drive ends up disabled, pending the usual offline/rewind thing. It can take several hours before this occurs.

With disconnects disabled, the drive appears to work flawlessly.

>How-To-Repeat:

>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted: