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any ways toReduce unused allocated primary storage on VSAM

 
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jimmy_augustine
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Joined: 23 Jun 2004
Posts: 32
Topics: 13
PostPosted: Thu Sep 16, 2004 3:59 am    Post subject: any ways toReduce unused allocated primary storage on VSAM Reply with quote
Hi
Is there an online facility in FileAid to reduce unused allocated primary storage on VSAM files or is it a matter of repro-ing the file to FLAT file and reallocating based on a new primary allocation?

Thanks
JIMMY
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kolusu
Site Admin
Site Admin


Joined: 26 Nov 2002
Posts: 12378
Topics: 75
Location: San Jose
PostPosted: Thu Sep 16, 2004 5:37 am    Post subject: Reply with quote
jimmy_augustine,

As far as I know there is no Online Facility to reduce the primary quantity.The following JCl is used to release any unused space

Code:

//STEP0100 EXEC PGM=IEBGENER                         
//SYSPRINT DD  SYSOUT=*                             
//SYSUT1   DD  DUMMY,                               
//             DCB=(LRECL=nnn,RECFM=F,BLKSIZE=0)     
//SYSUT2   DD  DSN=YOUR VSAM FILE,
//             DISP=(MOD,KEEP,KEEP),                 
//             SPACE=(TRK,(1,1),RLSE)               
//SYSIN    DD  DUMMY                                 
//*                             



Hope this helps...

Cheers

Kolusu
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vara prasad
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Joined: 01 May 2003
Posts: 2
Topics: 0
PostPosted: Thu Sep 16, 2004 7:10 am    Post subject: Reply with quote
A proper way could be,
to calculate the amount of space required and doing the space allocation accordingly.

In your case, you may have to re organise the VSAM file.

Regards,
Vara.
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Thanks & Regards,
Vara Prasad.
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