TMF Reference Manual (G06.24+)

TMFCOM Commands
HP NonStop TMF Reference Manual—522418-002
3-129
DUMP FILES
TAPEMEDIA tape-volume
for dumps to tape, identifies the tape volume to which the online dumps are written.
tape-volume is the identifier magnetically encoded in the tape volume label and
registered in the TMF catalog. The maximum number of tape volumes allowed by
this command is 16.
If the TAPEMEDIA parameter is specified in the DUMP FILES command, TMF
attempts to use the tape volume specified by this parameter, as described under
Online Dumps to Tape later in this discussion.
If no medium is specified (that is, if neither TAPEMEDIA nor DISKMEDIA is
specified), tape media is assumed by default and a scratch tape is selected from
among those listed in the TMF catalog.
If you specify TAPEMEDIA, you must not also specify the DISKMEDIA option.
SYSTEM node
specifies the node (system) or nodes on which all copies are made. The SYSTEM
parameter applies only to dumps directed to tape. (When directing a dump to a
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 Kernel. 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
OFF.
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.