Red Hat GFS 6.0 -, Руководство администратора

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80 Chapter 7. Using the Cluster Configuration System
Steps related to CCS in the setup procedure must be modified to use a CCS server in place of a CCA
device.
Note
ccs_servd
provides information to any computer that can connect to it. Therefore,
ccs_servd
should
not be used at sites where untrusted nodes can contact the CCS server.
7.5.1.1. Creating a CCA File
Like a CCA device, a CCA file is created by the
ccs_tool
command from a directory of CCS
configuration files. Instead of specifying a CCA device as the last parameter when creating an archive,
a local file name is specified. The
ccs_tool
command creates the named file, which is the CCA file.
That file should be named
ClusterName
with a
.cca
extension. (
ClusterName
is the user-
supplied variable that specifies the name of the cluster.) The CCA file must be located on the node
that runs
ccs_servd
.
7.5.1.1.1. Usage
ccs_tool create Directory CCAFile
Directory
The relative path to the directory containing the CCS files for the cluster.
CCAFile
Specifies the CCA file to create.
7.5.1.1.2. Example
In this example, the name of the cluster is alpha and the name of the CCA file is
alpha.cca
. The
CCA file is saved in the
/etc/sistina/ccs-build/
directory, which is the default location where
ccs_servd
looks for CCA files.
ccs_tool create /root/alpha/ /etc/sistina/ccs-build/alpha.cca
7.5.1.2. Starting the CCS Server
There are two parts to starting CCS in the cluster when using a CCS server. The first is starting
ccs_servd
and the second is starting
ccsd
on all the cluster nodes. When starting
ccs_servd
,
no command line options are required unless the CCA file is saved in a location other than
/etc/sistina/ccs-build/
.