COMM (Communicate with MUF) › COMM SNAP (Write Dump of Master List)

COMM SNAP (Write Dump of Master List)

The COMM SNAP option writes a dump of the Master List to the Statistics and Diagnostics Area (PXX), or to SYSOUT if ML is specified in the SYSOUT MUF startup option. The dump contains the Master List information. You can run this option at any time.

Note: If you are running in a MUFplex environment, when COMM OPTION=SNAP is requested a CA Datacom/DB return code 94(104) is generated on the remote MUFs in addition to the SNAP dump on the local MUF. The return code is 94 (GENERAL ERROR INDICATOR) with an internal return code of 104 ERROR OCCURRED ON ANOTHER MUF WITHIN THE MUFPLEX at HEX offset 15A (master list dump reason). For details, see return code 94(104) in the CA Datacom/DB Message Reference Guide.

The COMM SNAP function communicates with one MUF. Be aware of the following:

• Ensure that DBUTLTY is communicating with the desired MUF by executing DBUTLTY with the same System Identifier module (DBSIDPR) that is being used by the MUF, and
• Ensure proper load library concatenation by keeping the System Identifier modules (DBSIDPR) in separate load libraries.

If the z/OS Cross-System Coupling Facility (XCF) is being used, ensure that the TOGROUP DBSIDPR parameter is correctly defined. See the CA Datacom/DB Database and System Administration Guide for more information on XCF.

When using a console command, these steps are unnecessary.