# Allocation of Configuration File

You can use File Creation JCL to create a new version of the Substation ES Transformer Configuration file for use with Substation ES.

You can define and allocate a VSAM linear file, and then use this file as the repository for all the transformation configuration settings that are read by Substation ES.

The Transformer Configuration file can be shared among multiple users under the following conditions:

- The Transformer Configuration file is a catalogued data set shared between LPARs.
- VSAM SHAREOPTIONS (2 3) must be used to limit the update authority to one user.
- The first user who opens the configuration file for editing has update authority.
- The second and subsequent users have read-only authority.

The JCL and control statements that are required for defining and allocating a Transformer configuration file are as follows:

    //JS010 EXEC PGM=IDCAMS,REGION=0M
    //SYSPRINT DD SYSOUT=*
    //SYSIN    DD *
            DEFINE CLUSTER ( -
                      NAME(USERHLQ.CONFIG) –
                      VOLUMES(xxxxxx) –
                      SHAREOPTIONS(2 3) –
                      TRACKS(10 10) –
                      CISZ(4096) –
                      LINEAR –
                      )
    //

You must change the data set name and DASD volume name according to your environment. Also, replace USERHLQ with High Level Qualifier for your Substation ES libraries.

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