Red Hat GFS 6.1 -, Руководство администратора

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46 Chapter 5. Managing GFS
gfs_jadd -Tv /gfs1
5.6.4. Complete Usage
gfs_jadd [
Options
] {
MountPoint
|
Device
} [
MountPoint
|
Device
]
MountPoint
Specifies the directory where the GFS file system is mounted.
Device
Specifies the device node of the file system.
Table 5-4 describes the GFS-specific options that can be used when adding journals to a
GFS file system.
Flag Parameter Description
-h
Help. Displays short usage message.
-J
MegaBytes
Specifies the size of the new journals in
megabytes. Default journal size is 128
megabytes. The minimum size is 32 megabytes.
To add journals of different sizes to the file
system, the
gfs_jadd
command must be run for
each size journal. The size specified is rounded
down so that it is a multiple of the
journal-segment size that was specified when the
file system was created.
-j
Number Specifies the number of new journals to be added
by the
gfs_jadd
command. The default value is
1.
-T
Test. Do all calculations, but do not write any
data to the disk and do not add journals to the file
system. Enabling this flag helps discover what
the
gfs_jadd
command would have done if it
were run without this flag. Using the
-v
flag with
the
-T
flag turns up the verbosity level to display
more information.
-q
Quiet. Turns down the verbosity level.
-V
Displays command version information.