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November 2022, Week 3

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Subject:
Re: 918LX DAT drives
From:
Craig Lalley <[log in to unmask]>
Reply To:
Craig Lalley <[log in to unmask]>
Date:
Thu, 17 Nov 2022 17:45:04 +0000
Content-Type:
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text/plain (49 lines) 
James,
Just like you and me the disk drives are getting older.  I don’t think you replaced the drives with a brand new drive.   Those drives are probably at least 15 years old.    Meantime between failures goes up when grease degrades.
Have you considered the SCSI2SD?   
-Craig 


Sent from Yahoo Mail for iPad


On Thursday, November 17, 2022, 8:22 am, James B. Byrne <[log in to unmask]> wrote:

I recently had cause to give up on internal DAT drives and switch to an
external drive.  My problem was that occasionally loading a tape would cause
the drive to become non-responsive.  It would show as available but it did not
mount the tape nor would eject it.  The only recovery from this state was to
power-cycle the HP3000.

We have run this particular 918 since 1999.  Up to about two years ago we never
had these problems.  Since then we have gone through three internal drive
replacements. Earlier this year we switched to an external drive.

This morning the external drive exhibited the exact behaviour observed in the
internal drives.  As with the previous internal drives a power cycle of the
external drive was required to recover.

The question is:  What is causing this behaviour?  It clearly does not lie with
the devices themselves.  It cannot be the cable connectors as these differ from
internal to external.  So what is going on?

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