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gfs_jadd(8) | System Manager's Manual | gfs_jadd(8) |
NAME¶
gfs_jadd - Add journals to a GFS filesystemSYNOPSIS¶
gfs_jadd [ OPTION]... <DEVICE|MOINTPOINT>...DESCRIPTION¶
gfs_jadd is used to add journals to a GFS filesystem after the device upon which the filesystem resides has been grown. By running gfs_jadd on a GFS filesystem, you are filling in space between the current end of the filesystem and the end of the device upon which the filesystem resides. When this operation is complete, the journal index is updated so that machines mounting the filesystem at a later date will see the newly created journals in addition to the journals already there. Machines which are already running in the cluster are unaffected.OPTIONS¶
- -j num
- The number of new journals to add. This defaults to 1.
- -J size
- The size of the new journals in megabytes. The defaults to 128MB (the minimum size allowed is 32MB). If you want to add journals of different sizes to the filesystem, you'll need to run gfs_jadd once for each different size of journal. The size you specify here will be rounded down so that it is a multiple of the journal segment size which was specified at filesystem creation time.
- -h
- Help. Prints out a short usage message and exits.
- -q
- Quiet. Turns down the verbosity level.
- -T
- Test. Do all calculations, but do not write any data to the disk and do not add journals. This is used to discover what the tool would have done were it run without this flag. You probably want to turn the verbosity level up in order to gain most information from this option.
- -V
- Version. Print version information, then exit.
- -v
- Verbose. Turn up verbosity of messages.