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Date:      Tue, 17 Jun 1997 16:07:30 -0400 (EDT)
From:      Cliff Addy <fbsdlist@federation.addy.com>
To:        questions@freebsd.org
Subject:   SCSI bus timeouts
Message-ID:  <Pine.BSF.3.95q.970617160007.17823A-100000@federation.addy.com>

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What has happened to my lovely little FreeBSD systems?  They used to be so
stable, so rock-solid reliable.  Now they don't even stay up a day
anymore.

What happened?  I "upgraded" them to 2.2, since then my life has been
hell.  I thought 2.2.2 was going to fix the problem with lockups during
tape backups.  But the newest system, running the latest code off the ftp
site, just died with that same "SCSI bus timed out" error message.

This was not a "heavily loaded" system, it was brand new and doing
*nothing* but a backup.  On our systems, about 35% of our backups to tape
lock up the machine with the bus timeouts.

Does anyone have an idea on how to fix this?  We're running the same
hardware that stayed up for weeks at a time under 2.1.5, Cyrix 6x86, 64MB,
Adaptec 2940UW, Seagate HDD and DAT.




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