The first thing I would try is both the SCSI cable and terminator. They are relatively cheap, and you should have backups (if you don't already) anyway, and it only takes a minute to change the cable and terminator. From there, I would pursue the lines of thought pointed out by others. But to start, keep it simple to rule that out. John On Wed, 20 Oct 2004 13:31:29 -0500, rotbau <rotbau at gmail.com> wrote: > Hello all, > > I am running SUSE 9.0. I am having some problems with a recently > installed HP Surestore DAT 40. When I try and run a backup, the > computer freezes, slowly at first and then progressively gets more > locked up. Here is what happens. > > Start Backup > BU software starts the jobs and hits a good xfer rate. Usually within > 30-50 seconds of starting the job the backup throughput falls and > eventually goes to 0. The tape drive stops receiving data (light > stops flashing). The backup software interface still functions but > becomes increasingly unresponsive. Same with the GUI interface. > Eventually all user interfaces lock up. If I run a very small backup > job (like the htdocs directory) it will work fine. Any larger job > causes the hang. No matter how long I wait, the software never > generates and error message. Also, nothing in any of the log files I > checked to say what is happening. > > This box has apache and qmail running on it as well. When it is > locking up, I can still access the apache test page text, but the > graphic won't load. I can telnet to qmail but it won't send any mail. > > Here is the setup. > > Compaq Smart 2SL attached to 2 x 9 GB drives in RAID 1 and 1 36 GB drive. > HP DAT is connected to on board Adaptec 7860 controller along with a > NEC cdrom drive. The CD is the last device on the chain. > Backup software tried (both Tapeware and Arkeia). > All drives appear as expected. I can format tapes in the drive and > have been able to work with as expected until I start a backup job. > > I suspect it is a hardware issue. The 7860 is a ultra/narrow > controller whereas the DAT drive is a Ultra/LVD drive. Is it possible > that this is the cause? Could the location of the DAT on the cable be > a problem, should it be last? > > This server also has a 7890 on-board controller that is Ultra/LVD, but > when I enable it the machine won't boot to the Compaq raid controller. > I think I need to disable some stuff in the scsi bios to fix that > problem, but I haven't had time. The compaq 2sl also has a second > channel, but the documentation that came with the dat suggests you > shouldn't connect it to a raid controller if possible. > > Any suggestions on where to look for this problem would be helpful. > Thanks in advance. > > rotbau > > _______________________________________________ > TCLUG Mailing List - Minneapolis/St. Paul, Minnesota > Help beta test TCLUG's potential new home: http://plone.mn-linux.org > Got pictures for TCLUG? Beta test http://plone.mn-linux.org/gallery > tclug-list at mn-linux.org > https://mailman.real-time.com/mailman/listinfo/tclug-list > -- John T. Hoffoss _______________________________________________ TCLUG Mailing List - Minneapolis/St. Paul, Minnesota Help beta test TCLUG's potential new home: http://plone.mn-linux.org Got pictures for TCLUG? Beta test http://plone.mn-linux.org/gallery tclug-list at mn-linux.org https://mailman.real-time.com/mailman/listinfo/tclug-list