From: M.Russell@iaea.org
Date: Wed Mar 09 2005 - 02:24:40 EST
I have a SUNBlade 100 with two Ultra-SCSI cards. The backups to the tape
drive (Exabyte 8505) on my system have been failing for the last couple of
days. I had thought the tape drive was perhaps defective because it is old,
and since I have an extra tape drive, I tried this morning to replace the
current drive with the spare one. When I rebooted after exchanging the
drives, I got error messages like : Target 3 reducing sync transfer rate, got
SCSI bus reset, and Target 3 reverting to async mode. I did a search and
found in SUN that perhaps the problem is with the SCSI card and not the tape
drive, so I tried connecting the drive to the other SCSI card and everything
was fine - no error messages and the drive is happily now tarring the latest
set of backup files to tape.
Since one of our disk packs is connected to the other half of this card, I am
concerned that these error messages could indicate looming failure of the
whole card. If one half of the card is defective, will the other half soon
fail? Could something like a loose cable have caused the error messages? Is
there any possibility that this SCSI card can be saved, or do I need to
replace it ASAP?
I would be very grateful for any advice.
Thanks in advance.
Marian Russell
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