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Jeff,
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
Jeff,
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.
Scott
-----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 norm.
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 months.
--
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