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  3. March 2014

RE: Temporary tape errors

Totally agree.
A BRMS restore can be twice as long a Restore 21.
And it is much simpler.
The BMRS recovery report is not 100%, one must read between the lines, add or delete some items.
I'm an advocate of BRMS, but not keen on BRMS recoveries.
I feel a restore 21 does a quicker, better job than a BRMS recovery.

Paul

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Jim Oberholtzer
Sent: Tuesday, March 04, 2014 11:27 AM
To: 'Midrange Systems Technical Discussion'
Subject: RE: Temporary tape errors

There is one advantage to a "21" over a *SAVSYS in BRMS. Speed. BRMS does add some overhead, very worth it to me, but overhead nonetheless.

--
Jim Oberholtzer
Chief Technical Architect
Agile Technology Architects


-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of rob@xxxxxxxxx
Sent: Tuesday, March 04, 2014 10:04 AM
To: Midrange Systems Technical Discussion
Subject: Re: Temporary tape errors

There's no real advantage to a GO SAVE 21, versus the BRMS version of the full system save. And I'd run the BRMS restore report and download the spool file, just in case.


Rob Berendt
--
IBM Certified System Administrator - IBM i 6.1 Group Dekko Dept 1600 Mail
to: 2505 Dekko Drive
Garrett, IN 46738
Ship to: Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com





From: Jeff Crosby <jlcrosby@xxxxxxxxxxxxxxxx>
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>
Date: 03/04/2014 10:52 AM
Subject: Re: Temporary tape errors
Sent by: midrange-l-bounces@xxxxxxxxxxxx



Thanks for chiming in.

The tape drive and whatnot swap would probably be scheduled for 5pm.

Regarding the full backup: Every morning at 3am we do the BRMS equivalent of a SAVE21. Then, @4:45pm, when all billing for the next day is finished, we do an incremental backup of *ALLUSR libs and *SPLF.

That close enough? No incremental IFS at day's end. However, there's no reason I couldn't run an actual SAVE21 at that time.



On Tue, Mar 4, 2014 at 10:45 AM, Jim Oberholtzer < midrangel@xxxxxxxxxxxxxxxxx> wrote:

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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--
Jeff Crosby
VP Information Systems
UniPro FoodService/Dilgard
P.O. Box 13369
Ft. Wayne, IN 46868-3369
260-422-7531
www.dilgardfoods.com

The opinions expressed are my own and not necessarily the opinion of my company. Unless I say so.
--
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