Red Hat CLUSTER SUITE - CONFIGURING AND MANAGING A CLUSTER 2006 Manual page 23

Chapter 1. Red Hat Cluster Manager Overview
Software
Subsystem
DLM
LOCK_GULM
LOCK_NOLOCK
GNBD
Table 1-1. Red Hat Cluster Manager Software Subsystem Components
Components
fence_wti
fenced
libdlm.so.1.0.0
dlm.ko
lock_gulm.o
lock_gulmd
libgulm.so.xxx
gulm_tool
lock_nolock.o
gnbd.o
gnbd_serv.o
gnbd_export
gnbd_import
Description
Fence agent for WTI power switch.
The fence daemon. Manages the
fence domain.
Library for Distributed Lock
Manager (DLM) support.
Kernel module that is installed on
cluster nodes for Distributed Lock
Manager (DLM) support.
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.
Library for GULM lock manager
support
Command that configures and
debugs the
lock_gulmd
Kernel module installed on a node
using GFS as a local file system.
Kernel module that implements the
GNBD device driver on clients.
Kernel module that implements the
GNBD server. It allows a node to
export local storage over the
network.
Command to create, export and
manage GNBDs on a GNBD
server.
Command to import and manage
GNBDs on a GNBD client.
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server.