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Specifies the number of Fast Path database buffers to be made available in the Common Service Area (CSA) when a Fast Path region is activated. The number specified is used by ZDT/IMS functions when they access Fast Path databases.

The number you specify must be in the range 1 to 9999.

This parameter is optional. If it is not specified on the HFM1POPI macro statement, ZDT/IMS uses either the value specified on the HFM1POPD macro statement (if specified on that statement), or 10 (otherwise).

If you do not want the user to override the value you specify for this parameter, set UIMSNBA=N.