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UAMS Data Set Sharing

The sharing of an UAMS VSAM data set is best achieved by using record-level sharing (RLS).

Use of VSAM RLS requires the following software and hardware configuration:

• The systems must be configured as a parallel sysplex.
• The appropriate CF structures must be set up.

Note: For complete information about setting up systems for VSAM RLS support, see the IBM DFSMSdfp Storage Administration guide.

For a VSAM data set to be eligible for RLS with this product, it must:

• Be SMS-managed
• Not be defined as recoverable

The LOG(NONE) parameter is specified on the DEFINE CLUSTER or ALTER command. When a VSAM data set is defined as using RLS, all concurrent users of the data set must open it using the RLS option.