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Copying ESDS file which is already being used


IBM Mainframe Forums -> JCL & VSAM
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sgiri
Warnings : 1

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Joined: 07 Aug 2007
Posts: 20
Location: chennai

PostPosted: Sat Oct 20, 2007 1:16 pm
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How can we copy a ESDS file which is already being used ( which is in open mode) ?
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enrico-sorichetti

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Joined: 14 Mar 2007
Posts: 10873
Location: italy

PostPosted: Sat Oct 20, 2007 1:48 pm
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In general ( not only ESDS related ) concurrent access to any
VSAM cluster is controlled by the "SHAREOPTIONS" definition parameter

If You abide to the SHAREOPTIONS constraints and
You are aware of the integrity exposures of concurrent access to a dataset,
( physical and logical )
then copying a dataset is just a read operation.

All said You can simply use a IDCAMS repro
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expat

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Joined: 14 Mar 2007
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Location: Welsh Wales

PostPosted: Sat Oct 20, 2007 2:16 pm
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What is the ESDS being used for ? Is it allocated to CICS or another online process ?

In addition to IDCAMS you might try DFdss concurrent copy, and if you have Flashcopy or Snapshot implemented, either of those.
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Harm10

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Joined: 13 Oct 2007
Posts: 10
Location: Holland

PostPosted: Tue Oct 23, 2007 1:30 am
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expat wrote:
In addition to IDCAMS you might try DFdss concurrent copy

Use the option TOLERATE(ENQFAILURE) for open files!
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