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Syntax for VSAM File Re-organisation

 
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madhugoodboy

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Joined: 24 Jan 2006
Posts: 12

PostPosted: Wed Sep 26, 2007 6:13 pm    Post subject: Syntax for VSAM File Re-organisation
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Can Anybody explain how do we re-organise the VSAM file , and also let me know the SYNTAX of the same. Which would be great help for me.

Madhu .
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expat

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

PostPosted: Thu Sep 27, 2007 12:34 am    Post subject:
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You can use either IDCAMS REPRO or IDCAMS EXPORT/IMPORT

As for the syntax, that is readily available in the VSAM manual reached by clicking the manuals link at the top of this page.

Depending on the DASD configuration in use, you will gain nothing if you are using RAID 6 DASD, except in the case where you are approaching the limit of extents allowable for you VSAM cluster.

If you use RAID 5 DASD, then you may see a performance improvement, although unlikely with the speed and performance of modern DASD subsystems.
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silentarya

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Location: Chennai

PostPosted: Thu Sep 27, 2007 4:56 pm    Post subject: Reply to: VSAM File Re-organisation .
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Have never tried it ... However, remember reading the following steps somewhere for reorganising the VSAM files ...

1... Copy the data to a flat file ...
2... Delete the VSAM file ....
3... Create the VSAM file back....
4... Copy the data from the flat file to VSAM File ...
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