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Index for Section 8 |
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Alphabetical listing for V |
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vbmtchain(8)
NAME
vbmtchain - displays mcells that describe metadata for a file
SYNOPSIS
/sbin/advfs/vbmtchain BMT_page cell special [special 2...]
OPERANDS
BMT_page
Specifies the page within the bitfile metadata table (BMT) of the
volume that contains the file's mcell.
cell
Specifies the cell of the BMT page that contains the file's mcell.
special
Specifies the volume on which the file's primary mcell is located.
special 2...
Specifies the other volumes in this domain that may be accessed to
follow the file's mcell chain.
DESCRIPTION
The vbmtchain utility displays metadata for a file. The file is described
by the location of its primary mcell. Each mcell location is composed of
three parts: volume, page within the BMT file located on that volume, and
cell within the BMT page.
The primary mcell for the root tag directory is found in the BMT of the
volume containing the log. To find this volume for a domain, use the
showfdmn or the advscan command. The volume marked "L" contains the log.
Certain metadata files are in fixed locations:
______________________________________________________
Page Cell Volume
______________________________________________________
Bitfile metadata table 0 0 every volume
Storage bitmap 0 1 every volume
Root tag directory 0 2 volume with log
Transaction log file 0 3 volume with log
______________________________________________________
The vbmtchain utility displays the attributes of the file including the
time stamp, the extent map, and whether the file is a user directory or a
data file.
RESTRICTIONS
You must have root user privileges to access this command.
SEE ALSO
showfdmn(8), advscan(8), advfs(4)