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alternate index key does not support reuse.?

 
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abcd.us786

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Joined: 06 Dec 2006
Posts: 5
Location: India

PostPosted: Tue Jan 02, 2007 2:32 pm    Post subject: alternate index key does not support reuse.?
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hello,

i have a query regarding VSAM ksds. while defining a alternate index for a ksds file if we specify reuse in the ksds file defination it does not support it . can any one tell me why?


regards,
Abcd.
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William Thompson

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Joined: 18 Nov 2006
Posts: 3158
Location: Tucson AZ

PostPosted: Tue Jan 02, 2007 2:59 pm    Post subject:
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REUSE on the cluster, according to the FM:
Quote:
REUSE]NOREUSE
specifies whether the cluster can be opened again and again as a reusable cluster.

REUSE
specifies that the cluster can be opened again and again as a reusable cluster. When a reusable cluster is opened, its high-used RBA is set to zero if you open it with an access control block that specifies the RESET attribute.

REUSE allows you to create an entry-sequenced, key-sequenced, or relative record work file.

When you create a reusable cluster, you cannot build an alternate index to support it. Also, you cannot create a reusable cluster with key ranges (see the KEYRANGE parameter) or with its own data space (see the UNIQUE parameter). Reusable data sets may be multivolume and are restricted to 16 physical extents per volume.
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