NAME
ccs - Cluster Configuration System
DESCRIPTION
A cluster environment that shares resources has information that is essential to correct operation which must be available to every node in the cluster. This information may include: names of the nodes composing the cluster, I/O fencing methods, and more. CCS is the system that makes it possible for the nodes in a cluster to retrieve the information they need.
OVERVIEW
The following is a generic description of the steps one should take to produce a working CCS environment.
Step 1
Choose a cluster name. It is important to determine a name
for the cluster before starting. The cluster name is what
binds a machine to specific resources that can only be
shared by machines that are members of the same cluster
name.
Step 2
Create the directory /etc/cluster.
Step 3
Create the /etc/cluster/cluster.conf file, according
to the cluster.conf(5) man page, on one node in your
cluster.
Step 4
Start ccsd and test the cluster.conf file by using
ccs_test. If you haven’t started a cluster
manager yet, you should use the ’force’ option
to ccs_test - see the ccs_test(8) man page for
more info.
If a failure occurs while parsing the config file, ccs_test should report "ccs_connect failed: No data available" and /var/log/messages should report "Unable to parse /etc/cluster/cluster.conf".
FORMAT OF THE CCS FILE
See cluster.conf(5)