The IPCS COMCHECK subcommand formats the contents of specific COMMTASK control blocks and related diagnostic information. z/OS MVS IPCS Commands gives the syntax for the COMCHECK subcommand and z/OS MVS IPCS User's Guide explains how to use the COMCHECK option of the IPCS dialog.
The COMCHECK subcommand produces the following reports from the COMMTASK information in a dump:
| Keyword | Report displays | Explanation topic |
|---|---|---|
| DATABLKS | Information that IBM® might request for problem determination. | COMCHECK DATABLKS subcommand output |
| LISTNAMES | Lists the console names defined to the specified keyname. | COMCHECK LISTNAMES subcommand output |
| MCSINFO | Information about message queueing and console management. | COMCHECK MCSINFO subcommand output |
| NAME or ID | Formats a multiple console support (MCS), SMCS or extended MCS console for the specified console name or identifier. | COMCHECK NAME or ID subcommand output |
| NAMELIST | Lists all console names defined within a sysplex at the time of the dump. | COMCHECK NAMELIST subcommand output |
| RDCM | Status of device independent display operator console support (DIDOCS) resident display control modules (RDCM). | COMCHECK RDCM subcommand output |
| SBC | Information about the delayed issue queue. | COMCHECK SBC subcommand output |
| SYSCONS | Status of the system console. | COMCHECK SYSCONS subcommand output |
| SYSPLEX | Information that IBM might request for problem determination. | COMCHECK SYSPLEX subcommand output, COMCHECK SYSPLEX(SYSMEM) subcommand output |
| TDCM | Status of DIDOCS pageable display control modules (TDCM). | COMCHECK TDCM subcommand output |
| UCM | Summary of the unit control module (UCM) base, prefix, and extension. | COMCHECK UCM subcommand output |
| UCME | Status of MCS or SMCS consoles. | COMCHECK UCME subcommand output |
| UPDATES | Information that IBM might request for problem determination. | COMCHECK UPDATES subcommand output |
The topics that follow show sample output for each keyword of the COMCHECK subcommand and describes the information contained in each report.