TMF Supplement for Large Audit Files (G06.24+)

TMF Reference Manual
HP NonStop TMF Supplement for Large Audit-Trail Files—527391-001
5-40
SET AUDITTRAIL (Pages 3-232 through 3-235)
FILESIZE integer
specifies the size of the audit-trail files, in megabytes (MB). The minimum value
for FILESIZE is 1 and the maximum depends on the format of the audit-trail files,
as follows:
•
For format 1 files: 2047 or the maximum disk size (if less than 2047 MB).
•
For format 2 files: 1048575 or the maximum disk size (if less than 1048575
MB). (Note that 1048575 equals 1 terabyte (TB) minus 1 megabyte (MB).)
The default is as follows:
•
For format 1 files, 100 (resulting in files of 100 MB each).
•
For format 2 files, 1024 (resulting in files of 1024 MB each).
ACTIVEVOL[S]
specifies the disk volumes that hold the audit-trail files. At least one volume must
be specified for this purpose, either in a SET AUDITTRAIL command or a
subsequent ADD AUDITTRAIL command. Up to 16 volumes can be specified as
active-audit volumes.
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 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
portion of the large disks will be underused because the active-audit trail will not
use them and they cannot be used for audited files; such large volumes, 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 configured for the trail,
and the size of those files.
TMF preallocates the configured number of files when a subsequent ADD
AUDITTRAIL command is executed. If TMF cannot allocate all the files, the ADD
AUDITTRAIL command fails.
The minimum value for FILESPERVOLUME is 1 and the maximum value is 100.
The default is 5.
Caution. FILESIZE values smaller than 300 MB are not recommended. A FILESIZE value of
1 MB should really never be used.