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meenakshi_forum
Warnings : 1
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Joined: 27 May 2008
Posts: 70
Location: India
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What does this step mean in overide
//STEP010.RESTART DD VOL=REF=
where all do we use it ?
Thanks. |
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dick scherrer
Global Moderator
Joined: 23 Nov 2006
Posts: 8732
Location: 221 B Baker St
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Hello,
If you post output file 2 from a run that has this override, we can clarify using your "real" process.
Specifying no value for a parameter "unsets" that parameter, so where the jcl specifies a referback, the override removes it.
| Quote: |
| where all do we use it ? |
You would probably only use it for that particular override. |
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meenakshi_forum
Warnings : 1
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Joined: 27 May 2008
Posts: 70
Location: India
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//STEP010 EXEC PGM=IEFBR14
//RESTART DD DISP=(NEW,CATLG,DELETE),
// UNIT=SYSDA,SPACE=(TRK,(1)),
// VOL=REF=PROD.RSTART,
// DSN=&PROD1..AGH.PROTECT.RESTART.SNDD9097K |
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dick scherrer
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Joined: 23 Nov 2006
Posts: 8732
Location: 221 B Baker St
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Hello,
The jcl step you posted allocates the named dataset on the same volume the RSTART DD is allocated to in the PROD step.
The override removes the referback to the specific volume, so any eligible SYSDA volume might be used for the allocation. |
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meenakshi_forum
Warnings : 1
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Joined: 27 May 2008
Posts: 70
Location: India
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Thanks, trying to understand.
Do you mean in the Test JCL when we give overide then it is not using the SYSDA volume specified in the Production Proc rather it is using the volume whichever is available then..
Please correct if i am wrong. |
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gcicchet
Senior Member
Joined: 28 Jul 2006
Posts: 663
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Hi,
actually if your volumes are SMS managed, the refer back is superflous as it will not make any difference, SMS will place the dataset on whichever volume it decides to place the dataset on.
Gerry |
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