Growing A File System - Red Hat ENTERPRISE LINUX 5 - GLOBAL FILE SYSTEM Manual

Examples
This example disables quota accounting on file system /gfs on a single node.
gfs_tool settune /gfs quota_account 0
This example enables quota accounting on file system /gfs on a single node and initializes the quota
file.
# gfs_tool settune /gfs quota_account 1
# gfs_quota init -f /gfs

3.7. Growing a File System

The gfs_grow command is used to expand a GFS file system after the device where the file system
resides has been expanded. Running a gfs_grow command on an existing GFS file system fills
all spare space between the current end of the file system and the end of the device with a newly
initialized GFS file system extension. When the fill operation is completed, the resource index for the
file system is updated. All nodes in the cluster can then use the extra storage space that has been
added.
The gfs_grow command must be run on a mounted file system, but only needs to be run on one
node in a cluster. All the other nodes sense that the expansion has occurred and automatically start
using the new space.
To verify that the changes were successful, use the gfs_grow command with the -T (test) and -v
(verbose) flags. Running the command with those flags displays the current state of the mounted GFS
file system.
Note
Once you have created a GFS file system with the gfs_mkfs command, you cannot
decrease the size of the file system.
Usage
gfs_grow MountPoint
MountPoint
Specifies the GFS file system to which the actions apply.
Comments
Before running the gfs_grow command:
• Back up important data on the file system.
• Display the volume that is used by the file system to be expanded by running a df MountPoint
command.
Growing a File System
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