Installation guide

In this example, the current state of the file system on the /gfs1 directory is checked for the new
journals.
gfs_jadd -Tv /gfs1
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 4.4, “GFS-specific Options Available When Adding Journals” 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.
-v Turns up the verbosity of messages.
Table 4.4. GFS-specific Options Available When Adding Journals
Complete Usage
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