Initializing Zowe custom data sets

Review this article to learn about how to intialize Zowe custom MVS data sets by using the zwe init mvs command.

Required role: system programmer

Introduction

During the installation of Zowe, three data sets SZWEAUTH, SZWESAMP and SZWEEXEC are created and populated with members copied across from the Zowe installation files. The contents of these data sets represent the original files that were provided as part of the Zowe installation and are not meant to be modified.

For modification and execution, it is necessary to create custom data sets by using the zwe init mvs command. For detailed information about this command, see the zwe init mvs command reference.

The zowe.yaml section that contains the parameters for the data set names is:

zowe:
  setup:
    dataset:
      prefix: IBMUSER.ZWE
      parmlib: IBMUSER.ZWE.CUST.PARMLIB
      jcllib: IBMUSER.ZWE.CUST.JCLLIB
      authLoadlib: IBMUSER.ZWEV2.SZWEAUTH
      authPluginLib: IBMUSER.ZWE.CUST.ZWESAPL

Review the following table for storage requirements for the three data sets:

Library DDNAME	Member Type	zowe.yaml	Target Volume	Type	Org	RECFM	LRECL	No. of 3390 Trks	No. of DIR Blks
CUST.PARMLIB	PARM Library Members	zowe.setup.dataset.parmlib	ANY	U	PDSE	FB	80	15	5
CUST.JCLLIB	JCL Members	zowe.setup.dataset.jcllib	ANY	U	PDSE	FB	80	15	5
CUST.ZWESAPL	CLIST copy utilities	zowe.setup.dataset.authPluginLib	ANY	U	PDSE	U	0	15	N/A

Procedure to initialize Zowe custom data sets

To initialize Zowe custom data sets, run the following command:

zwe init mvs -c /path/to/zowe.yaml

Here is an example of running zwe init mvs.

#>zwe init mvs -c ./zowe.yaml
-------------------------------------------------------------------------------
>> Initialize Zowe custom data sets

Create data sets if they are not exist
Creating IBMUSER.ZWEV2.CUST.PARMLIB
Creating IBMUSER.ZWEV2.CUST.JCLLIB
Creating IBMUSER.ZWEV2.SZWEAUTH
Creating IBMUSER.ZWEV2.CUST.ZWESAPL

Copy IBMUSER.ZWEV2.SZWESAMP(ZWESIP00) to USER.ZWEV2.CUST.PARMLIB(ZWESIP00)
Copy components/zss/LOADLIB/ZWESIS01 to USER.ZWEV2.SZWEAUTH(ZWESIS01)
Copy components/zss/LOADLIB/ZWESAUX to USER.ZWEV2.SZWEAUTH(ZWESAUX)
Copy components/launcher/bin/zowe_launcher to USER.ZWEV2.SZWEAUTH(ZWELNCH)

>> Zowe custom data sets are initialized successfully.
#>

Results

If this step is successful, there will be three custom data sets matching the values in zowe.setup.dataset.parmlib, zowe.setup.dataset.jcllib and zowe.setup.dataset.authPluginLib in the zowe.yaml file. The member ZWESIP00 will exist in the CUST.PARMLIB and the JCLLIB and ZWESAPL will be empty.

In addition to the three custom data sets, the PDS SZWEAUTH is created. This may already exist. In this case, you will receive the error message Error ZWEL0158E: IBMUSER.ZWEV2.SZWEAUTH already exists. You can ignore this message, or you can use the --allow-overwritten option on the command. For example, zwe init mvs -c zowe.yaml --allow-overwritten.