dwguest, you wrote:
>Hmm. The Adaptec 1542 is old and slow, but unreliable? Thousands of Linux users
>have used this host adapter for many years, essentially without problems.
>(The driver interacts badly with the rest of the SCSI subsystem: as soon as
>something went wrong, one would get a long series of `resetting SCSI bus' errors
>that would end in a system crash. But as long as no I/O errors occurred, everything
>was fine - the 1542 works reliably on good hardware.)
>
>So, if you find destroyed file systems and the like, something is bad,
>and it seems unlikely to me that this is the Adaptec's fault.
>
>(Standard questions: Is termination OK? Are cables not too long?
>Your memory isnt rotten? Never a Signal 11 during a gcc compile?)
Standard answer:
termination is OK, cables are not too long,
memory seems to be OK, never had a signal 11 during gcc compile.
--> I checked everything using the scsi checklist from:
http://sdb.suse.de/sdb/de/html/kfr_15.html
There I also found to set the device configuration to DISABLE "allow disconnect" for
slow
devices like a tape. This is some time ago (don't remember exactly) but I think after
this
moment I had the "real" problems with destroyed file system.
Now when using the Tekram host adapter with "allow disconnect" enabled also the tape
seems to
work fine.
Regards,
Roland Boden
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