Open System Services Management and Operations Guide (G06.29+, H06.07+)

Managing Filesets
Open System Services Management and Operations Guide—527191-005
5-30
Inconsistencies Checked by FSCK
Bad free-inode
list
Serious An OSS name server maintains two free-inode lists in each
catalog. One is used to list the inodes that can be immediately
reused. The other is used to list those inodes that can be
reused only after a successful unmount and mount sequence.
The FSCK utility detects and corrects the following
inconsistencies:
•
An inode other than a free-inode block appears on a free-
inode list.
•
A loop occurs in a free-inode list.
•
An in-use inode also appears in a free-inode block.
•
The same free-inode block appears on both free-inode
lists.
If any free-inode list inconsistencies are found, the free-inode
lists are rebuilt.
If FSCK is run using the SCF DIAGNOSE FILESET command,
FSCK places all free inodes in the list of inodes that can be
reused immediately.
If FSCK is run automatically by the OSS Monitor as a result of
a failure of an OSS name server, FSCK places all free inodes
in the list of inodes that cannot be reused until after an
unmount and remount sequence.
Missing inode Serious There are references to an inode but the inode itself does not
exist. FSCK corrects this inconsistency as follows:
•
If the missing inode is /, /E, /G, /lost+found, or /dev,
it is added as a directory.
•
If the missing inode is /dev/tty, that special file is
added.
•
If the missing inode is /dev/null, that special file is
added.
•
If the missing inode appears as a parent in one or more
PXLINK records, it is added as a directory in the new
PXINODE file.
•
If there is a nonempty ZYQ file corresponding to the
missing inode and if the disk process link count for that file
is nonzero, the missing inode is added as a regular file
that refers to the ZYQ file.
•
If none of the above apply, any references to the missing
inode are omitted from the new catalog.
Too many links Serious An inode has more links than are allowed (1 for directories, 20
for other inodes). Those links in excess of the maximum are
omitted from the new PXLINK file.
Table 5-2. Inconsistencies Checked by FSCK (page2of4)
Inconsistency Type Explanation