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             |    +-BOTH----+     +-BOTH----+    |   
             |    +-STATIC--+     +-STATIC--+    |   
             |    '-DYNAMIC-'     '-DYNAMIC-'    |   

Specifies the PSB types that can be used to access databases in the IMS™ subsystem.
Both dynamic and static PSBs can be used.
Only static PSBs can be used.
Only dynamic PSBs can be used.

When you specify two values in parentheses, separated by a comma, the first value is used for BMP mode and the second value is used for DLI mode. When you specify a single value, this is used for both BMP and DLI modes.

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 "(BOTH,BOTH)" (otherwise).

The user cannot override the value you specify for this parameter.