Red Hat GFS 6.0 Administrator's Manual page 22

8
Software Subsystem
Pool
LOCK_GULM
LOCK_NOLOCK
GFS
Components
fence_manual
fence_ack_manual
pool.o
pool_assemble
pool_tool
pool_info
pool_grow
pool_mp
lock_gulm.o
lock_gulmd
gulm_tool
lock_nolock.o
gfs.o
lock_harness.o
gfs_mkfs
gfs_tool
gfs_quota
gfs_grow
gfs_jadd
Chapter 1. Red Hat GFS Overview
Description
Fence agent for manual interaction.
WARNING: Manual fencing should not be
used in a production environment. Manual
fencing depends on human intervention
whenever a node needs recovery. Cluster
operation is halted during the intervention.
User interface for
fence_manual
Kernel module implementing the pool
block-device driver.
Command that activates and deactivates
pool volumes.
Command that configures pool volumes
from individual storage devices.
Command that reports information about
system pools.
Command that expands a pool volume.
Command that manages pool multipathing.
Kernel module that is installed on GFS
nodes using the LOCK_GULM lock
module.
Server/daemon that runs on each node and
communicates with all nodes in GFS
cluster.
Command that configures and debugs the
server.
lock_gulmd
Kernel module installed on a node using
GFS as a local file system.
Kernel module that implements the GFS file
system and is loaded on GFS cluster nodes.
Kernel module that implements the GFS
lock harness into which GFS lock modules
can plug.
Command that creates a GFS file system on
a storage device.
Command that configures or tunes a GFS
file system. This command can also gather
a variety of information about the file
system.
Command that manages quotas on a
mounted GFS file system.
Command that grows a mounted GFS file
system.
Command that adds journals to a mounted
GFS file system.
agent.