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RE: System save / Tape performance issue



fixed

Thank you everyone for all the tips.
I need to remember to account for the extra time if doing a system save after an IPL.

I enabled ASYNCBRING back in 2012 when on V6R1.
I wasn't sure if it remained enabled through an OS upgrade.
CALL PGM(QBRM/Q1AOLD) PARM('PARMOVR' '*DISPLAY' 'ASYNCBRING')
ASYNCBRING: *YES.

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of rob@xxxxxxxxx
Sent: Friday, January 24, 2014 8:57 AM
To: Midrange Systems Technical Discussion
Subject: RE: System save / Tape performance issue

Read ALL of his reply. Check out that ASYNCBRING.


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: "Steinmetz, Paul" <PSteinmetz@xxxxxxxxxx>
To: "'Midrange Systems Technical Discussion'"
<midrange-l@xxxxxxxxxxxx>
Date: 01/23/2014 04:54 PM
Subject: RE: System save / Tape performance issue
Sent by: midrange-l-bounces@xxxxxxxxxxxx



V7R1 - latest cum, TR7, all latest groups.
AJS job - STRBKUBRM CTLGRP(SAVSYS06) SBMJOB(*CTLSBS) APPEND(*YES)
OMITS(*IGNORE)


-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [
mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Mark S Waterbury
Sent: Thursday, January 23, 2014 4:51 PM
To: Midrange Systems Technical Discussion
Subject: Re: System save / Tape performance issue

Paul:

What do you mean by "an unattended system save" -- did you use GO BACKUP,
or GO SAVE option 21, or BRMS, or what?

Also, you did not mention what version / release of OS/400 or IBM i
(i5/OS) this is happening on?

If you are on V6R1 or above, take a look at this document:

http://www-01.ibm.com/support/docview.wss?uid=nas8N1011242

This new feature is intended to help speed up the time to save IFS objects
...

Do a google search for "ASYNCBRING(*YES)" (without quotes) and you will
find a number of good articles, etc.

Hope that helps,

Mark S. Waterbury

On 1/23/2014 3:31 PM, Steinmetz, Paul wrote:
I did an unattended system save on our Pencor06 R&D partition Monday
evening, the save ended abnormally because it didn’t complete within the
360 minutes.
I will be increasing the system max restricted time from 360 to 420,
just in case this occurs again.
System was at 39% of 12,565 or 4900.
System was in restricted state.
Save was using 2 of 4 LTO5 drives. Normally my overall rate is 900 gb
hr.
I expected the save to be done in about 5 hours.
Actual was 6+ hours, if it would have finished.
It was saving the IFS when it ended because of the time limit.
Any thoughts of where to look for issues.

Thank You
_____
Paul Steinmetz
IBM i Systems Administrator

Pencor Services, Inc.
462 Delaware Ave
Palmerton Pa 18071

610-826-9117 work
610-826-9188 fax
610-349-0913 cell
610-377-6012 home

psteinmetz@xxxxxxxxxx<mailto:psteinmetz@xxxxxxxxxx>
http://www.pencor.com/


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