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Others have suggested WRKSYSACT. You don't mention which OS level your running. At V6 and above WRKSYSACT is part of the OS, at V5R4 it's part of the Performance tools.

Try just plain old WRKACTJOB and use F11 once to bring up elapsed numbers. Put the cursor on the column labeled AuxIO and press F16 to sort. The highest I/O job will pop to the top. Chances are strong you just found your problem job.

Commercial products however good they are won't help when the system is nearly in a critical state.

Jim Oberholtzer
Chief Technical Architect
Agile Technology Architects


On 7/5/2013 10:19 AM, Vernon Hamberg wrote:
Denis

There are a couple options I can think of - one is a commercial
offering, the other is free - either may help you a lot.

The commercial one is an app I wrote several years ago at Centerfield
Technology - it may have been modified since then - disk/HUNTER was the
name and is now sold by S4i and is named DASD-Plus Alert - information
athttp://www.s4isystems.com/products/dasdplusalert.html

I forget right now who wrote the free one - they are on these lists - oh
yeah, Martin Rowe - you can find info at
http://www.dbg400.net/extras.html#dasdmon

And I recall that Help Systems has a Robot Space utility.

HTH
Vern

On 7/5/2013 9:17 AM, Denis Robitaille wrote:
> Hello all,
>
> We are currently facing a major problem. There is, on one of our systems, 1 or more job that is consuming disk at an alarming rate (the % used goes up 1 percent every 5 minutes or so). We have thousands of jobs running and we can not easily pin point the guilty one.
>
> In the past, we got lucky some times (a badly defined SQL that we were able to spot), and unlucky some others (IPL when the % got to high).
>
> Does anyone can give me hints on how to spot, on the fly, the disk consumption of a job, be that for Database IO or temporary memory space.
>
> Thanks in advance
>
>
> Denis Robitaille
> Chef de service TI
> Cascades Centre des technologies,
> une division de Cascades Canada ULC
>
> 412 Marie Victorin
> Kingsey falls(Québec) Canada J0A 1B0
> T : 819 363 6130
>
>
> Pour toute information sur les événements techniques, veuillez consulter notre calendrier Groupwise CAS_CALENDRIER_TI
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