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Planning VSAM storage requirements z/OS Cryptographic Services PKI Services Guide and Reference SA23-2286-00 |
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The MVS™ programmer uses the
IKYCVSAM sample JCL to create two VSAM data sets (clusters):
The MVS programmer also uses
the same sample JCL to create five alternate index data sets (paths):
The IKYCVSAM sample JCL contains default values for the primary and secondary extent allocations for these data sets. The default allocation for base clusters is CYL(3,1). For alternate indexes, it is TRK(5,1). You need to update these values based on your anticipated future needs. Use the guidelines in Determining storage needs for the ICL and Determining storage needs for the object store to update the space allocation parameters for the DEFINE CLUSTER and DEFINE ALTERNATEINDEX statements. (For more information about IDCAMS, see z/OS DFSMS Access Method Services Commands.) |
Copyright IBM Corporation 1990, 2014
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