Reclaim Those Empty CAs!

Project and Program: MVS, MVS Storage Management

Tags: Proceedings, 2012, SHARE in Atlanta 2012

Orphaned Control Intervals (CA)  have found a home. You can now avoid unnecessarily extending data sets and planned outages for VSAM data set reorganizations. A new function, CA Reclaim,  introduced in z/O V1R12 provides improved performance by reducing extends, minimizes space utilization, and increases application availability by avoiding planned outages for VSAM key sequenced data set  reorganizations. From a user's perspective, the speaker will discuss what causes orphaned CA's, how they are now reclaimed,  and provide examples of how users are enabling this function in their environments.    Terri Menendez, IBM Corporation

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