Make VSAM file access better.

Virtual Storage Access method - ESDS, KSDS, RRDS & LDS. Basic direct access method, Basic sequential -, Queued sequential -, Basic partitioned -, Indexed sequential -, Object - access method.
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Duregsh Thakur
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Posts: 5
Joined: Mon Apr 28, 2014 11:17 am

Make VSAM file access better.

Post by Duregsh Thakur »

Hi,

We have a KSDS VSAM file and this is concurrently accessed by 25+ Jobs. We've observed that these Jobs gets delayed while accessing this file. Also, when we run the same jobs separately to avoide the contention, it runs a lot quicker.

Is there a limitation on a VSAM file on concurrent reads as most of the JObs are just reading the data from it? Please advise to avoid the situation.
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