The system library, SYS1.SBLSCLI0, contains copies of the REXX EXECs and CLISTs supplied by IBM®. All IPCS REXX EXECs begin with the prefix BLSX. All IPCS CLISTs begin with the prefix BLSC. Use REXX EXECs and CLISTs to:

• Begin an IPCS dialog
• Create a dump directory
• Generate problem screening reports
• Perform initial dump analysis
• Print system storage areas
• Process one or more IPCS subcommands
• Provide examples of IPCS subcommands

For customization:

• Individual IPCS users can invoke the BLSCDDIR CLIST supplying parameters to change dump directory defaults, such as the dump directory volume serial or the number of records provided for dump directories.
• Installations can edit the BLSCDDIR CLIST to customize the dump directory for the entire installation.
• Individual users or installations can run the BLSCLIBD CLIST to begin an IPCS dialog. IBM recommends using this CLIST rather than using the BLSGLIBD dialog program.

See the following references for more information:

• z/OS MVS IPCS User's Guide for information about writing REXX EXECs and CLISTs for IPCS and invoking them from an IPCS session
• Customizing the Dump Directory for editing the BLSCDDIR CLIST to customize a dump directory for an entire installation
• Customizing the IPCS Dialog for using the BLSCLIBD CLIST to start an IPCS dialog
• z/OS MVS IPCS User's Guide for using the BLSCDDIR CLIST to customize a dump directory for an individual IPCS user