Control Data Cyber 170 Series Operator's Manual page 93

Command
CHECK POINT SYSTEM.
n. DIS.
X. name.
or
X. name(ccc ... ccc)
or
X. name, xxxxx.
K. ccc ••. ccc.
or
L. ccc •.• ccc.
UNLOCK.
60435600 A
Description
Rolls out all jobs having a queue priority less than or
equal to MXPS and writes the contents of central mem-
ory tables to mass storage. This command is typically
entered in preparation for a level 1 or 3 recovery dead-
start. In this case, it is recommended that the IDLE
command be entered before entering this command.
This ensures that no new jobs will be scheduled to a
control point after the checkpoint information has been
written. If the IDLE command is not entered, job
scheduling resumes automatically after the checkpoint
information has been written. For additional infor-
mation concerning the CHECK POINT SYSTEM com-
mand, refer to Preparing for Recovery Deadstart in
section 2.
Calls the job display package (DIS) to an active control
point specified by n. The A and B display for DIS
automatically appear on the left and right console screen,
respectively. Refer to section 8 for complete informa-
tion concerning the DIS package.
Calls a system program or utility specified by name to
an available control point. If parameters are to be
passed to the program (for example, COMPASS or
MODIFY), the second form of the command is used
where (ccc •.• ccc) specifies the parameters. In both
the first and second form of the command, a default
field length of 60000 octal is assumed. If a field length
different from the default is required, the third form
of the command is used. The field length is speci-
fied by xxxxx.
Allows entry of data ccc ••• ccc in user or system de-
fined CPU buffer for control when K or L display is
active. Refer to section 4 for information concerning
the K and L display.
Unlocks the console keyboard. When this command is
active, the message UNLOCKED appears in the header
of the left screen display. Although all DSD commands
can be entered when the console is unlocked, the
following commands are restricted to entry only when
the console is unlocked.
..
DEBUG.
•
All channel control
•
ENGR. commands
•
DATE. yy/mm/dd.
•
STEP.
•
TIME. hh. mm. ss.
•
STEP, xx.
•
DISABLE, VALIDATION.
•
n. STEP.
•
ENABLE, VALIDATION.
•
n. STEP, xx.
•
All memory entry
•
UNSTEP.
commands
The console should always be locked when the system
is being used in a production environment. However,
the console may be unlocked to allow entry of the
STEP. command in the event that a system failure
requiring a recovery deadstart occurs (refer to Pre-
paring for Recovery Deadstart in section 2).
3-37