This is not such a big deal, what really is happening is the backplane is
being replaced. They seem to think the problem is the backplane for the
tape. Could be. A full back up is in order before swapping the cage is in
order, but I don't see it as a high risk procedure.

Jim Oberholtzer
Chief Technical Architect
Agile Technology Architects

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Scott Mildenberger
Sent: Tuesday, March 04, 2014 9:35 AM
To: Midrange Systems Technical Discussion
Subject: RE: Temporary tape errors


We have an internal drive and the report shows lots of TTE's, I have never
looked at this before so don't know if it has always been like this. The
report doesn't recommend replacing any media and we have not had any issues
restoring anything off tape.


-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Jeff Crosby
Sent: Tuesday, March 04, 2014 6:51 AM
To: Midrange Systems Technical Discussion
Subject: Re: Temporary tape errors

I heard from my HW service provider this morning. They want to replace the
internal 5755 drive, a 'cage', and wiring harness I think that's it, but he
may have said something else. I asked whether the replacement drive was
tested and would eliminate the Temporary Tape Errors ("TTE" for short).
They said it was tested, but no, the TTEs would not be eliminated.

I asked why should I change drives and still have TTEs? They said this
drive would have fewer errors. They have 15 systems in their data center
and every internal tape drive has TTEs. Customers with internal tape drives
also have TTEs. Systems with external tape drives (data center and
customers) don't have TTEs. Per them, TTEs on internal tape drives is the

This *really* bothers me to think that it's acceptable in the midrange world
to have TTEs on internal tape drives. I'm really interested in whether
anyone on this list that is using internal tape drive for backup would check
their *VOLSTATS via the PRTERRLOG command and report.

I have yet to give them the OK to do this. When I do, I may say that I want
to do it Friday at 5pm so if there is a catastrophic issue we have the
weekend to recover. (The last time they replaced the internal tape drive we
lost a hard drive upon restart.) Maybe I'm overreacting, but I am amazed at
how much my confidence in the HW has been shaken over the past couple of
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