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RLSE in temp & SORTWKXX files

 
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manojkumar.sesuraj

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Joined: 15 Apr 2009
Posts: 43
Location: Mumbai

PostPosted: Mon Dec 07, 2009 4:03 pm    Post subject: RLSE in temp & SORTWKXX files
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Hi,
I used SORT step in my job. I defined the SORTWK files like,
//SORTWK01 DD UNIT=SYSDA,SPACE=(CYL,30)
//SORTWK02 DD UNIT=SYSDA,SPACE=(CYL,30)

I didn't use RLSE in SPACE. Will it occupy more DASD storage when it run?

Here, what is the use of RLSE? If I ll declare like SPACE=(CYL,30,RLSE) then what is the diff it will make?

Please correct me If Im wrong, RLSE is used to release the reaminig space in flat files.
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expat

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Joined: 14 Mar 2007
Posts: 8593
Location: Back in jolly old England

PostPosted: Mon Dec 07, 2009 4:46 pm    Post subject:
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Check the sysout from the run. I think that you will find that because you have not coded a DISP parameter the temp files will be deleted at end of step, the same time as the RLSE parameter would be actioned, so in effect it would not use extra space.

However, as the system setup may vary, you need to check your own sysout to see what happens.
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manojkumar.sesuraj

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PostPosted: Mon Dec 07, 2009 5:57 pm    Post subject:
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Thanks Expat...
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Bill Dennis

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Joined: 17 Aug 2007
Posts: 562
Location: Iowa, USA

PostPosted: Mon Dec 07, 2009 11:25 pm    Post subject:
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RLSE is most useful for files that will remain beyond end-of-job. This saves space by releasing unused tracks/cyls.

Temp files delete at EOJ so RLSE is no big deal.
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