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List:       suse-linux-e
Subject:    SCSI Hard Disk Problems
From:       Ron Cordell <roncordell () atl ! mediaone ! net>
Date:       2001-09-30 22:02:58
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I have a machine that uses an Adaptec 2940U SCSI controller and 3 SCSI 
drives. The first SCSI drive is a 2.1GB drive that contains Linux. The other 
2 drives are Seagate 9GB drives that are used for filesystem storage.

The first of the Seagate drives seems to just "go away" after some period of 
time. The messages log just shows I/O errors that result from the drive no 
longer being available.

If I reboot the machine, I hear the drive spinning up, and it will become 
operational again.

It seems that the drive is taking itself offline, but I don't know why.

The machine is a Pentium 266 with 128MB RAM running SuSE 7.1 distro with the 
2.4.4-4GB kernel. The SCSI driver is not the new aix-7xxx driver, but the old 
driver because I had problems with the new driver allowing me to partition 
and format the drives reliably.

Questions:

1. Is there a way to bring the drive back on-line without rebooting the 
machine?

2. What tools can I use to discover the cause of the problem?

3. As soon as I can get the drive to stay online long enough to make a tape 
backup of its contents I will replace the drive. Is this an indication that 
the drive is going bad?

Thanks for any help!

- -ronc
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