z/OS Common Information Model User's Guide
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Option 1: Placing /var/wbem in a separate file system

z/OS Common Information Model User's Guide
SC34-2671-00

Option 1: Placing /var/wbem in a separate file system

To place the CIM server repository and the log files in a separate file system, perform the following steps. For a better maintainability, it is recommended to mount a separate file system on /var/wbem for the CIM server's data repository. The recommended size is 100 MB.

__   1.
Adjust the job card.
__   2.
Adjust STEP 1 of the JCL to create a file system data set. Choose this step to create a data set. You must provide the name in the JCL for further processing the selected sample job.

As an alternative, you can also create the file system outside of this JCL.

STEP 1 is a sample to allocate a zFS file system dataset:

JCL - sample STEP 1
//*****************************************************************/
//*  STEP 1 - Create zFS DataSet for /var/wbem                    */
//*****************************************************************/
//DEFZFS   EXEC PGM=IDCAMS
//SYSPRINT DD SYSOUT=*
//DASD0    DD DISP=(NEW,CATLG),UNIT=unit,VOL=SER=volser
//SYSIN    DD *
  DEFINE CLUSTER( -
    NAME(%CFZVARWBEMDS%) -
    VOLUMES(volser) -
    STORAGECLASS(OMVS) -
    LINEAR -
    CYLINDER(150 15) -
    SHAREOPTIONS(3) -
  )
//FRMZFS   EXEC   PGM=IOEAGFMT,REGION=0M,
//         PARM=(' -aggregate %CFZVARWBEMDS% -compat ')
//SYSPRINT DD SYSOUT=*
//STDOUT   DD SYSOUT=*
//SYSPRINT DD SYSOUT=*
//SYSPRINT DD SYSOUT=*
__   3.
If you are using an extensible file system, you can suppress the check for enough free space by specifying the parameter -noSpaceCheck in the installation/migration utility at STEP 2 of the JCL. The system administrator is responsible to ensure that there is enough free space (60 MB) available for installation or migration, otherwise the job will fail. This will not suppress the check if you use a separate file system data set.

The beginning of STEP 2 will then look like:

JCL - sample STEP 2
//*****************************************************************/
//*  STEP 2 - Run customization/migration utility                 */
//*****************************************************************/
//CFZRCUST EXEC PGM=BPXBATCH,TIME=NOLIMIT,REGION=0M,
//       PARM='PGM /usr/lpp/wbem/install/CFZRCUST.sh -noSpaceCheck'
//*
__   4.
Replace the place holder %CFZVARWBEMDS% in the JCL with the name of the file system data set, for example: OMVS.VARWBEM.ZFS.

When you have submitted the job, a return code (MAXACC) 0 or 4 indicates a successful installation or migration. If the return code is 12, look at the job output, correct the error and submit the job again.

__   5.
To mount the file system for the CIM server's data repository, you can add a mount statement in your BPXPRMxx PARMLIB member:
Mount statement:

MOUNT FILESYSTEM(OMVS.VARWBEM.ZFS)
         TYPE(ZFS)
         MOUNTPOINT('/var/wbem')
         MODE(RDWR)

Note:

Please see also Considerations for customizing CIM Server in a z/OS Sysplex

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