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DB2 Manager User Guide 55
StorageTek Proprietary
Example:
F LCDDB2,D T=T1
......
OTD20063 Task T001: Status=BUSY Qlen=001
DBID=ST01 Stg_level=0 Tape=00002
OTD20066 Request 001: Type=Retrieve DBID=ST01 Jobname=WATERSGJ
OTD20067 Request 001: Stg_level=0 Tape=00002 Blockid=01400005
OTD20058 Display processing completed
Force purge task
F(ORCE) T(ASK = (T|D|W|S)nnn
The FORCE command is used to immediately terminate a tape or disk reader
task, writer task or scheduler task in the DB2 Manager control region. Force
purging a task does not allow any outstanding requests in the task queue to
be completed.
The command may be abbreviated to a single 'F'. The TASK parameter may
be abbreviated to a single 'T'. The value 'nnn' must be numeric, and should
be preceded by the character ‘T’ for tape reader tasks, ‘D’ for disk reader
tasks, ‘W’ for writer tasks and ‘S’ for scheduler tasks. If this character is
omitted, a default value of ‘T’ will be used. The task identifier entered here
must correspond to a valid task number, as displayed by the status summary
command.
Both waiting and busy tasks are immediately terminated. For busy tasks, the
request currently being processed, and all subsequent requests in the task
queue, are abnormally terminated with a ‘resource unavailable’ condition.
This will generate an SQL error code of -652 and reason code of X'1015' to
the calling application.
When a task is force purged, the current value of the MAXTRDR, MAXDRDR,
MAXTWTR or MAXSCHED parameters is automatically decremented by 1,
depending on which type of task has been terminated. Once purged, a task
will not be available for object recall processing. Its status will appear as
'TERM' in any subsequent status display.
For busy tape reader and writer tasks, the current tape volume in use will be
de-allocated. The tape will be rewound and dismounted, and the tape drive
freed by DB2 Manager.
Tasks may only be force purged if a normal purge request has already been
queued for that task.
Example:
F LCDDB2,D