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тАО08-06-2003 04:54 AM
тАО08-06-2003 04:54 AM
We were using a DDS2 drive up until it failed two weeks ago and was replaced by an HP tech with a DDS3 drive. The new drive worked OK for a couple of days and then refused to eject tapes. HP insisted they had tested the drive and it was good.
The device files were deleted and we created new ones using /dev/rmt/1m etc. Again the drive worked OK for a couple of days and then failed again. This time on the advice of HP we disconnected the CD drive which is on the same SCSI bus. Once again the tape drive worked OK for a couple of days before failing. We are starting to think the tape drive is faulty but the HP tech insists there is nothing wrong with it.
Does anybody have any ideas what could be causing this?
Solved! Go to Solution.
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тАО08-06-2003 05:03 AM
тАО08-06-2003 05:03 AM
SolutionSecond, what else is on the same bus as the tape drive?
Because of the speed of a DDS3/4 on older systems isolate them to their own bus. The issue could be a timeout issue on responses when I/O is bound.
Regards,
Shannon
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тАО08-06-2003 05:34 AM
тАО08-06-2003 05:34 AM
Re: Problems with DDS3 drive
I don't remember the guts of D classes, but if there is a shared power connection, I'd try to swap it with some other device.
Other 'weird' scsi problems seem to always be related to termination / cableing.
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тАО08-06-2003 05:49 AM
тАО08-06-2003 05:49 AM
Re: Problems with DDS3 drive
mt -t /dev/rmt/0m status
mt -t /dev/rmt/0m offl
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тАО08-06-2003 05:53 AM
тАО08-06-2003 05:53 AM
Re: Problems with DDS3 drive
Bill Hassell, sysadmin
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тАО08-06-2003 06:04 AM
тАО08-06-2003 06:04 AM
Re: Problems with DDS3 drive
Seriously, escalate to managers until you get satisfaction.
SEP
Owner of ISN Corporation
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