Re: Processing Time - Consecutive versus Simultaneous Jobs

[Evan Harris <auctionitis@xxxxxxxxx>]

Hi Cynthia

as an alternative, consider modifying your save strategy as follows:
- Use virtual tape instead of savf's - will allow you to use 1 SAVLIB
operation instead of 7
- Use Save While active so you can you can restart processing once you have
a sync point instead of when the save is completely finished.

If you do decide to use save while active be sure to understand the SAVACT
parameter.

Seems a bit odd that you are saving you high availability libraries on what
sounds like the source system. Is there a reason you don;t save them on the
target so jobs on the source don;t need to be interrupted ?



On Sat, Jun 15, 2013 at 7:47 AM, <Cynthia.Rogers@xxxxxxxxxxx> wrote:

> We end QINTER and do a SAVLIB to *SAVF (in QBATCH) for our top seven high
> availability libraries before restarting QINTER and allowing users back on
> the system while the remaining libraries are backed up to tape.
>
> We were running the SAVLIB commands consecutively, one after another, in
> QBATCH.  This job started running over into our dayend processing, so we
> decided to submit these SAVLIB jobs separately to QBATCH so they could all
> run at the same time.
>
> We expected each of these submitted jobs to take about the same time as
> they were taking when they were run one after another.  That, however, is
> not what happened.  Our results were as follows:
>
>                             Run Date 6/13/13                        Run
> Date 6/14/13
>                         Running Consecutively                   Running
> Concurrently
> Library                 Start           End                     Start End
>
> PWRDTA          3:00 a.m.       3:36 a.m.               3:00 a.m. 4:23
> a.m.
> BLDDTA          3:36 a.m.       4:00 a.m.               3:00 a.m. 4:10
> a.m.
> PWRFOR          4:00 a.m.       4:02 a.m.               3:00 a.m. 3:09
> a.m.
> BLDFOR          4:02 a.m.       4:03 a.m.               3:00 a.m. 3:04
> a.m.
> IPWCSPRDF               4:03 a.m.       4:03 a.m.               3:00 a.m.
> 3:00 a.m.
> IPWBLPRDF               4:03 a.m.       4:03 a.m.               3:00 a.m.
> 3:00 a.m.
> IPWBSPRDF               4:03 a.m.       4:24 a.m.               3:00 a.m.
> 4:02 a.m.
>
> Our SAVLIB commands are:  SAVLIB LIB(library name) DEV(*SAVF)
> SAVF(HALIB/library name) PVTAUT(*YES)
>
> What am I missing?  Is there anything I can do to speed this process up?
>
> Thanks.
>
> Cindy Rogers
> Blue Line Foodservice Distribution
> 248/478-4213