Red Hat Cluster Suite, Manual

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Chapter 1. Red Hat Cluster Manager Overview 7
Software
Subsystem
Components Description
fence_wti
Fence agent for WTI power switch.
fenced
The fence daemon. Manages the
fence domain.
DLM
libdlm.so.1.0.0
Library for Distributed Lock
Manager (DLM) support.
dlm.ko
Kernel module that is installed on
cluster nodes for Distributed Lock
Manager (DLM) support.
LOCK_GULM
lock_gulm.o
Kernel module that is installed on
GFS nodes using the
LOCK_GULM lock module.
lock_gulmd
Server/daemon that runs on each
node and communicates with all
nodes in GFS cluster.
libgulm.so.
xxx
Library for GULM lock manager
support
gulm_tool
Command that configures and
debugs the
lock_gulmd
server.
LOCK_NOLOCK
lock_nolock.o
Kernel module installed on a node
using GFS as a local file system.
GNBD
gnbd.o
Kernel module that implements the
GNBD device driver on clients.
gnbd_serv.o
Kernel module that implements the
GNBD server. It allows a node to
export local storage over the
network.
gnbd_export
Command to create, export and
manage GNBDs on a GNBD
server.
gnbd_import
Command to import and manage
GNBDs on a GNBD client.
Table 1-1. Red Hat Cluster Manager Software Subsystem Components