ExLM Support

Expert Library Manager (ExLM) software from StorageTek is a utility that enhances control over a number of aspects of your tape management library (for example, the availability of scratch volumes). When this utility is run, it internally executes a Control-M/Tape module (CTTXLM) that provides information necessary for ExLM’s functioning.

If you are not using the ExLM software, ignore this topic.

The interface between Control-M/Tape and ExLM is performed by utilizing the TMX CTT control statement of ExLM. For more information about how to use this ExLM control statement, please refer to the ExLM System Administrator's Guide.

Note: For ExLM 6.0.0, you must apply ExLM PTF L1L00DO, and for ExLM 6.1.0 you must apply ExLM PTF L1l00DB.

As described in the ExLM System Administrator’s Guide, you need to perform the following steps to let ExLM access the Control-M/Tape Media Database:

1. Add the IOA LOAD library to the STEPLIB DD statement of the ExLM JCL. This is not required if you have already added the IOA LOAD library to the MVS LNKLST.
2. Add the following DD statement to the ExLM JCL:

   //DAPARM DD DISP=SHR,DSN=&ILPREFA.PARM

   //       DD DISP=SHR,DSN=&ILPREFA.IOAENV

   Note: Change &ILPREFA to the IOA installation library prefix.

3. Add a DD statement for the Media Database data component to the ExLM JCL, as follows:

   //LCMTMSDB DD DISP=SHR,DSN=&DBPREFT.MDBD.E000

   Note: Change &DBPREFT to the Control-M/Tape database prefix that was set during installation.