The INIT Data Area option formats the data area. It updates the first block with control information. This first block is subsequently updated when maintenance is performed. The block size used is the size specified for the area in the Directory (CXX) definition.
Performing an INIT on a data area has no performance benefit. It should only be done before the first load, and then only if needed. An INIT of an Index or data area clears the utility history for that area (see Type H - Utility Function History Report).
Note: When you specify VERIFY=YES, information in the control block is preserved instead of being lost. This history save and restore process presumes a successful completion and does not occur on all error conditions. For more information, see the description of VERIFY= in the table that begins on page How to Use.
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