TMF Reference Manual (H06.05+)

TMFCOM Commands
HP NonStop TMF Reference Manual—540138-002
3-17
ADD AUDITTRAIL
ACTIVEVOL[S]
specifies the disk volume that holds the audit-trail files. If ACTIVEVOL[S] was
specified in a previous SET AUDITTRAIL command in this session, this parameter
is optional in the ADD AUDITTRAIL command; otherwise, this parameter is
required.
You must specify at least one volume; up to 16 are allowed. A single volume
cannot be configured as an active volume for more than one audit trail. A volume
configured as an active-audit volume cannot be configured as a data volume. To
add more audit volumes to the configuration later, you can use the ALTER
AUDITTRAIL command.
Volumes of the same size should be used for a specific audit trail. TMF allocates
the same number of files on each volume, and all volumes must be able to hold all
of those files. If a mixture of large and small disks is used for an audit trail, some
space on the large disks will remain unused because this space will receive neither
the active-audit trail nor the audited files. The unused space, however, could be
configured as overflow space or audit restore space.
FILESPERVOLUME integer
specifies the number of files in the audit trail that reside on each active-audit
volume configured. The audit trail’s capacity is determined by the number of audit-
trail files per volume, the number of active-audit volumes, and the file sizes. TMF
pre-allocates these files when the ADD AUDITTRAIL command is executed. If
TMF cannot allocate all the files, this command fails.
The minimum value for FILESPERVOLUME is 1 and the maximum is 100. The
default is 5.
To change the FILESPERVOLUME value later, you can use the ALTER
AUDITTRAIL command.
Note. TMF is shipped from the factory with the $AUDIT disk volume configured as the
active-audit volume. You are free to retain $AUDIT for this purpose, replace $AUDIT with
another volume as the recipient of audit trails, or add other active-audit volumes to the
configuration. See also the note about the preconfiguration of data volumes that appears
under the discussion of the ADD DATAVOLS
command.
Caution. There must be at least three audit trail files defined for each configured audit trail
(MAT, AUX01, etc). That is, for a given audit trail the number of active volumes multiplied by
the FILESPERVOLUME value must be greater than or equal to 3. This may be accomplished
by configuring a single active volume with FILESPERVOLUME set to three or more, by
configuring two active volumes with FILESPERVOLUME set to two or more, or by configuring
at least three active volumes with FILESPERVOLUME set to one or more.