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Customizing File Manager IMS™ Component
Customizing the operating environment for FM/IMS
Customizing IMS™ to support the use of dynamic PSBs in BMP mode
If you plan to use dynamic PSBs to access databases in BMP mode, you must declare the dynamic PSBs and provide a DOPT ACBLIB data set.
Providing a DOPT ACBLIB data set
You must provide an ACBLIB data set into which the ACB Maintenance utility can generate DOPT PSBs. Use the DYNACB parameter on the FMN1POPI macro statement to specify the name of this data set.

Customizing File Manager IMS™ Component
- Preparing to customize FM/IMS
- Customizing the operating environment for FM/IMS
  - Modifying the ISPF environment
  - Customizing IMS™ to support the use of dynamic PSBs in BMP mode
    If you plan to use dynamic PSBs to access databases in BMP mode, you must declare the dynamic PSBs and provide a DOPT ACBLIB data set.
    - Declaring the dynamic PSBs
      You must include in the system definition an APPLCTN macro statement for each dynamic PSB name used by FM/IMS functions when run in BMP mode.
    - Providing a DOPT ACBLIB data set
      You must provide an ACBLIB data set into which the ACB Maintenance utility can generate DOPT PSBs. Use the DYNACB parameter on the FMN1POPI macro statement to specify the name of this data set.
- Customizing FM/IMS
- Customizing the FM/IMS security environment
- Customizing the File Manager audit facility for IMS™ component
- Customizing FM/IMS for national languages
  You can customize FM/IMS for national languages other than English.
- Verifying the customization of FM/IMS

Providing a DOPT ACBLIB data set

You must provide an ACBLIB data set into which the ACB Maintenance utility can generate DOPT PSBs. Use the DYNACB parameter on the FMN1POPI macro statement to specify the name of this data set.

When the ACBs are managed by your installation (ACBMGMT=ACBLIB), you must concatenate the specified data set with the primary ACBLIB data set in the IMS™ execution JCL (that is, the JCL that starts the IMS™ control region). The DOPT ACBLIB data set must be concatenated to both the IMSACBA and IMSACBB DDs in the IMS™ execution JCL.

When IMS™ management of ACBs is enabled (ACBMGMT=CATALOG), you do not have to concatenate the specified data set with the primary ACBLIB data set. Instead, the specified data set is used as input for the IMS Catalog Populate utility (DFS3PU00), which adds the DOPT PSBs to the IMS catalog. Note that the specified data set is also required by functions that run in DLI mode.

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