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Command: vtagpg | Section: 8 | Source: Digital UNIX | File: vtagpg.8.gz
vtagpg(8) System Manager's Manual vtagpg(8)
NAME
vtagpg - displays a formatted page of the tag directory
SYNOPSIS
/sbin/advfs/vtagpg special [page_LBN]
Specifies the volume on which the tag directory is located. Specifies
the logical block number (LBN) of the page to be examined; the default
is zero.
DESCRIPTION
The vtagpg utility translates a 16-block part of a volume of a mounted
or unmounted file system and formats it as a tag directory. Use this
utility with other file utilities to locate file-structure anomalies
for debugging.
If the volume is mounted, use the showfile -x command to get the extent
map before calling the vtagpg command. If the volume is unmounted, call
the vbmtchain command to identify the extent information.
Run the vtagpg utility to obtain the root tag directory first because
it has entries for each fileset in the domain. Then, run the utility
again to view the tag directory for the fileset under investigation.
This tag information points to the fileset metadata.
The vtagpg utility displays tag entries that map file inode number to
primary mcell location.
RESTRICTIONS
You must be the root user to use this command.
EXAMPLES
The following example displays the root tag directory located on volume
rz3h with LBN 96: # vtagpg /dev/rrz3h 96
RELATED INFORMATION
advscan(8), advfs(4) delim off
vtagpg(8)