Memory Dump Commands

The following table lists memory dump commands and their meanings. You can use these commands while the memory dump procedure is running.

Command

Explanation

ALLINUSE

Enables a more comprehensive dump when a dump to tape is underway. If a PARTIAL dump is initiated, you can use the ALLINUSE command to terminate the current dump and to start processing an ALLINUSE memory dump. Only the in-use areas of memory are dumped.

AUTOSUPPRESS

Following the memory dump, the AUTOSUPPRESS flag is set for this dump entry in the MDT HISTORY file. For more information on automatic dump suppression and the dump history file, refer to the MDT (Memory Dump Type) command.

AUTOSUPPRESS −

Cancels the effect of an AUTOSUPPRESS command entered during the current memory dump, and otherwise has no effect.

CD <unit number>

Invokes memory dump to CD-ROM.

CL

If the dump is to tape, immediately discontinues the dump and then restarts it.

COMPLETE

Enables a more comprehensive dump when a dump to tape is underway. If a PARTIAL or ALLINUSE dump is initiated, you can use the COMPLETE command to terminate the current dump and to start processing a COMPLETE memory dump. The entire memory image is dumped.

DS

Discontinues the dump. In the case of a fatal dump, a halt/load occurs. Otherwise, processing resumes as normal.

HL, HL +

Cause a halt/load to be performed. If the command is entered after the dump has started, the halt/load immediately follows the dump. If it is entered before the dump starts, the dump is discontinued and the halt/load takes place immediately.

HL −

Cancels a halt/load previously requested by an HL or HL + command that was entered while a dump was running.

HS, HS +

Halt the starting of new jobs or tasks after the dump.

HS −

Resume the starting of new jobs or tasks after the dump.

MIX

Displays the reason for the dump.

MT <unit number>

Sends the dump to a tape unit. The tape on the unit is purged before it is used.

Note: If the tape is not at load point, the memory dump asks you to enter this command a second time. Before you enter the command again, verify that it is permissible to overwrite the contents of the tape.

NODUMP, NODUMP +

Set the system run-time option NODUMP to TRUE after the dump.

Note: The OP NODUMP option reverts to its original setting after the next halt/load unless you enter an OP + NODUMP command after the memory dump finishes.

NODUMP −

Sets the system run-time option NODUMP to FALSE after the dump.

PG MT <unit number>

Sends the dump to the specified tape unit. The tape on that unit is purged before being used.

Note: If the tape is not at load point, memory dump asks you to enter this command a second time. Before you enter the command again, verify that it is permissible to overwrite the contents of the tape.

PROG, <SPCFY>

Request that automatic progress reports be directed to this ODT. The system displays a bar chart that shows the current dump progress. The charts are updated every 10 seconds. When progress reports are already in progress, the system immediately refreshes the screen. Note that excessive progress report requests—such as repeatedly pressing the SPCFY key—can result in greatly increasing the time required to complete the dump.

PROG −

Discontinues progress reports at all ODTs.

RESTART

If the dump is to tape, immediately discontinues the dump and then restarts it.

SN MT <unit number> <serial number>

Sends the dump to the specified tape unit. The tape on that unit is purged and assigned the specified serial number before being used. The serial number can be a number from one to six digits long or an alphanumeric string from one to six characters long and enclosed in quotation marks (“”).

Note: If the tape is not at load point, the memory dump asks you to enter this command a second time. Before you enter the command again, verify that it is permissible to overwrite the contents of the tape.

SUPPRESS

Following the memory dump, performs an MDT SUPPRESS <dump number> action for the current dump. You can use this command only during a nonfatal memory dump. For details, refer to the MDT (Memory Dump Type) command.

SUPPRESS −

Cancels a previous SUPPRESS command.

TAPE

Causes a dump that is to be written to disk to be written to tape or CD-R instead. If the dump is already processing, it is terminated.

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