StorageTek 6 manual SCP Diagnostic Subsystem Commands, Enabling the Diagnostic Subsystem, =Debug

SCP Diagnostic Subsystem Commands

These commands are provided for use when diagnosing a problem with a ‘‘live’’ system. Any other use may result in indeterminate conditions.

Note: It is recommended that StorageTek support personnel be contacted before using diagnostic subsystem commands.

These commands are only valid when entered from the ACS service machine’s virtual console.

Enabling the Diagnostic Subsystem

Issue the following SCP operator command:

SUBSYS DIAG SLKSBDIA

(

=

prefixchar

This command activates the diagnostic subsystem and enables the use of some special commands.

prefixchar is a command prefix indicating that the command is to be handled by the diagnostic subsystem. The default prefix is ‘‘=’’ (equal sign), but may be set to any character that does not conflict with use by other subsystems (for example, the HSC).

Note: The prefix character cannot be changed during a session. The SCP must be recycled and the new prefix character specified with the subsequent SUBSYS command.

The commands below are part of the diagnostic subsystem. The prefix character should be that described above.

=DEBUG	- enter the ‘‘debug’’ mode.
=NODEBUG	- exit the ‘‘debug’’ mode.
=DDICT	- return the data dictionary definition of a field.
=HPER	- set multiple break-points using the CP PER command.
=WHERE	- display the storage location for a given program module.

=DEBUG

This diagnostic command initiates the special ‘‘debug’’ mode. ‘CP SET RUN OFF’ is also executed.

=

the command character for the DIAG subsystem. The default is ‘‘=’’, but may be set to any character by the SUBSYS command that started the subsystem.

Chapter 5. Problem Determination, Diagnostics, and Recovery 379

1st ed., 6/30/04 - 312579601