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How to free unused space of the dataset

 
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deepak.kec

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Joined: 26 Feb 2007
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Location: bangalore

PostPosted: Mon Jan 21, 2008 10:58 am    Post subject: How to free unused space of the dataset
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How to free unused space of the dataset? Suppose we have created a dataset with the property of SPACE=1 CYL and the used space is 5 TRKs so i want to release the unused SPACE allocated to the dataset.
I tried to use IEBCOPY but couldnt succeed.
Can any body help me on this?
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murmohk1

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Joined: 29 Jun 2006
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PostPosted: Mon Jan 21, 2008 12:31 pm    Post subject:
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Deepak,

Why dont you use RLSE (during creation) parameter for releasing unused but allocated space?
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deepak.kec

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PostPosted: Mon Jan 21, 2008 1:05 pm    Post subject: Reply to: How to free unused space of the dataset
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The datasets are already created and i want to release the unused space allocated to them.
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enrico-sorichetti

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PostPosted: Mon Jan 21, 2008 1:41 pm    Post subject: Reply to: How to free unused space of the dataset
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if the number is small

from ispf option 3.4 put an F in front of the dataset and it will free the unused space...
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expat

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PostPosted: Mon Jan 21, 2008 5:36 pm    Post subject:
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Quote:
How to free unused space of the dataset? Suppose we have created a dataset with the property of SPACE=1 CYL and the used space is 5 TRKs so i want to release the unused SPACE allocated to the dataset.

If you allocate in CYL then RLSE parm in the JCL will release all unused cylinders and not the unused tracks within the last used cylinder.

The same is true for using F in 3.4
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