TMF Reference Manual (G06.26+)

TMFCOM Commands
HP NonStop TMF Reference Manual—522418-003
3-156
DUMP FILES
disk volume on a remote node, include the node name within the disk file name.)
The syntax rules for specifying a node name appear under Disk File Names, earlier
in this section. The default is the local node.
If you specify a remote node for dumps to tape, Guardian labeled-tape processing
must be enabled on that node and must be running on the NonStop OS. TMF,
however, need not be configured or running on the remote node.
UNLOAD {ON | OFF}
for dumps to tape, determines whether the tape volume is unloaded after the dump
process finishes writing to the tape. ON unloads the tape volume. OFF
suppresses unloading. If the UNLOAD option is completely omitted, the default is
ON.
VERIFYTAPE {ON | OFF}
for dumps to tape, determines whether tape verification is performed after a tape is
written. ON performs tape verification. After each tape volume is written, it is
rewound, read completely, and finally rewound and unloaded. The tape-record
checksums, tape-record sequence numbers, and tape format are verified. The
checks are the same as those made during file recovery; however, tape verification
does not include comparing the tape data to the audited files on disk.
If tape verification fails, an error message appears, the online dump terminates,
and the online dump copy is marked as invalid in the catalog. Tape verification
approximately doubles the time needed for a dump.
OFF suppresses verification of tape volumes.
If the VERIFYTAPE option is completely omitted, the default is VERIFYTAPE OFF.
Security Restrictions
You can issue the DUMP FILES command only if you are a member of the super user
group.
TMF State Requirement
Before you can enter the DUMP FILES command, TMF must be started.
Usage Guidelines
The DUMP FILES command dumps the specified audited files to disk if the
DISKMEDIA option is specified; otherwise, this command dumps them to tape.
The more frequently you make online dumps, the less time file recovery requires.
Note. For both online dumps and audit dumps, Expand links to remote disk volumes must
support 56 KB input/output.