Installation guide

GFS provides the following main functions:
• Making a File System
• Mounting a File System
• Unmounting a File System
• GFS Quota Management
• Growing a File System
• Adding Journals to a File System
• Direct I/O
• Data Journaling
• Configuring atime Updates
• Suspending Activity on a File System
• Displaying Extended GFS Information and Statistics
• Repairing a File System
• Context-Dependent Path Names (CDPN)
4. GFS Software Subsystems
Table 1.1, “GFS Software Subsystem Components” summarizes the GFS Software subsystems
and their components.
Software Subsystem Components Description
GFS gfs.ko Kernel module that implements the GFS
file system and is loaded on GFS cluster
nodes.
gfs_fsck Command that repairs an unmounted
GFS file system.
gfs_grow Command that grows a mounted GFS file
system.
gfs_jadd Command that adds journals to a moun-
ted GFS file system.
gfs_mkfs Command that creates a GFS file system
on a storage device.
gfs_quota Command that manages quotas on a
mounted GFS file system.
gfs_tool Command that configures or tunes a GFS
4. GFS Software Subsystems
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