TMF Reference Manual (G06.24+)

TMFCOM Commands
HP NonStop TMF Reference Manual—522418-002
3-123
DISPLAY OPERATIONS
Usage Guidelines
The DISPLAY OPERATIONS command returns information for one operation only.
TMF recognizes each specific instance of a particular kind of operation (such as a TMF
start, a TMF stop, or a file recovery) as a unique operation and assigns an operation
serial number that distinguishes this operation from other recent operations of the
same type. If you use the NOWAIT option in the command that generates an
operation, TMFCOM displays this number at your terminal. You can then retrieve EMS
messages about the operation by entering this number in the operation-number
parameter of the DISPLAY OPERATIONS command.
TMF maintains a pool of 100 operation numbers, assigning each new operation the
next available number. TMF re-uses the numbers generated; after TMF assigns
operation number 100, it next assigns the lowest number that is not presently in use.
For example, if TMF has assigned operation number 100 and the number 1 is still in
use when a new operation begins, TMF uses the number 2 for the new operation. By
keeping the number of digits used for operation numbers low, TMF provides values
that are easy to remember.
TMF keeps a history of recent operations, and you normally only need to include
operation-number in the DISPLAY OPERATIONS command to uniquely identify the
operation you want. However, if an operation occurred some time ago, the
operation-number list might have wrapped-around to its beginning and the number
of the operation you want to display might subsequently have been assigned to
another operation as well. Use the BEGINTIME date-time option to distinguish
between these multiple operations that share the same operation-number. The
date-time of an operation, like the operation-number, is displayed when you use
the NOWAIT option in the TMFCOM command that generates the operation.
If you specify an operation-number only, TMF displays the EMS messages
associated with the most recent occurrence of operation-number. If the TMP no
longer has a record of that operation-number, however, no data is displayed. If no
data appears, take these steps to retrieve the information needed:
1. Enter a STATUS OPERATIONS command to determine whether the TMP has a
record of the desired operation.
2. If this record exists, enter the DISPLAY OPERATIONS command, specifying the
operation-number only. If the record does not exist, however, enter the DISPLAY
OPERATIONS command with an approximate BEGINTIME value; in this case,
TMF does not consult the TMP and simply starts its search at the specified time.
If you specify the BEGINTIME option, TMF displays the EMS messages associated
with the next occurrence of operation-number after the time indicated by
BEGINTIME date-time.
If you specify the LOGFILE option, TMF searches for operation-number in the log
file indicated by LOGFILE filename rather than the current log file.