Checking vxfs filesystems
This section describes the use of
filesystem uses a tracking feature called
intent logging to record pending changes to
the filesystem structure.
These changes are recorded in an ``intent log''.
utility typically runs an intent log replay,
which scans the intent log and completes or nullifies
any pending updates.
it is seldom necessary to run a full filesystem check.
By default, the
only runs an intent log replay,
and does not perform a full filesystem check.
The full filesystem check is provided, however,
to handle cases where a filesystem is damaged
due to I/O failure.
The following is the
format of the
fsck [-F vxfs] -m special
fsck [-F vxfs] -n|N special
fsck [-F vxfs] [-o nolog,full] [-y|Y] special
The options are as follows:
Check for mountability.
To determine if a filesystem can be mounted, the
option is specified.
This option runs a full filesystem check.
option generates a report on errors but does
not make any repairs in conjunction with those errors.
Intent log replay is not performed.
This form of the command can be run safely
on mounted filesystems on which
there might have been damage.
If filesystem damage is suspected, a full
should be run to determine
the extent of filesystem damage.
(A full filesystem check is specified with the
to all questions.
This option has two ramifications.
First, after an intent log replay is run,
if the filesystem is not in a mountable state,
a full filesystem check is initiated automatically.
is automatically answered
to all questions posed by the full filesystem check.
Inhibit log replay.
An intent log replay is not performed.
This option can be used to disable
log replay, if the intent log is physically damaged.
Force full filesystem check.
By default, only a log replay is run.
A full filesystem check is normally interactive,
system administrator is prompted
before any corrective actions are taken.
This is not true if the -y or -n options
When these options are used,
no to prompts,
instead of waiting for input.
© 2004 The SCO Group, Inc. All rights reserved.
UnixWare 7 Release 7.1.4 - 22 April 2004