TMF Reference Manual (G06.24+)

TMFCOM Commands
HP NonStop TMF Reference Manual—522418-002
3-208
RECOVER FILES
Examples showing pattern-matching and wildcard-character use appear earlier in
this discussion under file-set on page 3-202 and later, under Examples on
page 3-213.
Security Restrictions
You can issue a RECOVER FILES command only if you are a member of the super
user group.
TMF State Requirement
Before you can enter the RECOVER FILES command, TMF must be started.
Usage Guidelines
For the RECOVER FILES command to operate successfully, AUDITDUMP ON must
have been specified in the ADD AUDITTRAIL or ALTER AUDITTRAIL command that
established the configured attribute values of the audit dump process, and at least one
online dump must have been taken of the affected audited files.
If you want to recover more than about 4,500 files, consider issuing multiple
RECOVER FILES commands against small groupings of files. If you specify a greater
number of files in a single command, recovery performance can be adversely affected.
The total number of characters (bytes) in the file-set list and NOT file-set list,
together, cannot exceed 28672.
Multiple file recovery processes can be running at any point in time.
Each generation of an online dump provides a point from which the file recovery can
start.
File recovery status is output to the EMS log file current at the time of the recovery.
Once file recovery is underway, it continues even if it encounters a damaged record
block. In such a case, at the end of file recovery, TMF marks the file as “broken” and
as “file recovery needed.” The file recovery summary and disk process operator
messages give the location of the audit records that caused the “broken” indication. To
Note. For both online dumps and audit dumps, Expand links to remote disk volumes must
support 56 KB input/output.
Caution. Before recovering a file that exists in the system, consider backing up that file to
preserve its current content and status.
HP strongly recommends that you direct output from the RECOVER FILES command to a disk
file or a printer by using the standard OUT option; doing so enables you to save the entire
output for future reference. If you omit the OUT option, the output might be lost because the
default is the terminal from which you issue the command, and the terminal has limited
memory. See Section 2, Using TMFCOM
, for information about directing output to an alternate
destination.