Configuring the IWNCRZFS job

You allocate a z/OS (zFS) data set to a root file system by specifying certain parameters in the IWNCRZFS job.

About this task

The files within a zFS data set are identified by their path and file names within Copy Services Manager.

Procedure

  1. Locate the IWNCRZFS job in the SYS1.SAMPLIB data set and open it.
  2. Modify the following values on your system.
    Note: You can use either a z/OS file system (zFS) or hierarchical file system (HFS). However, the following sample job pertains only to those customers who are using a zFS. It is recommended that you use zFS.
    //******************************************************************
//CREATZFS EXEC PGM=IDCAMS,REGION=64M                                           
//SYSPRINT DD SYSOUT=A                                                          
//SYSIN    DD   *                                                               
   DEFINE                              +                                
      CLUSTER                          +                                
         (NAME(‘#CSM.ZFS')             +                                
         LINEAR                        +                                
TRK(50000,5000)                        +                                
         VOLUME(#VOLUME)               +                                
SHAREOPTIONS(3))                                                       
/*
//* Format zFS - Note lowercase below for PARM in FORMTZFS                                   
//FORMTZFS EXEC PGM=IOEAGFMT,REGION=64M,                                        
//  PARM='-aggregate #CSM.ZFS -compat'                                      
//SYSPRINT DD   SYSOUT=A                                                        
//STDOUT   DD   SYSOUT=A                                                        
/*
  3. Specify the zFS to be created by editing the NAME (#CSM.ZFS) parameter.
  4. The TRK parameter is already defined with the default data set size of (50000, 5000).
  5. Specify the VOLUME parameter; enter the volume name where the zFS resides. The default name of the volume is (#VOLUME).
  6. Submit the IWNCRZFS job.