Installation guide

mechanism In a cluster setup, lockproto:=lock_dlm

Further information about the gfs_mkfs option can be obtained from the gfs:mkfs(8) man

page.

The following example formats the lv_ci logical volume with GFS:

# gfs_mkfs -j 3 -p lock_dlm -t lsrhc5:700_ci /dev/vg_sap700_gfs/lv_ci

5.3.4.2 fstab

In this GFS based setup, the GFS file systems are an integrated part of the operating system;

i.e., the file systems are defined in the /etc/fstab file and mounted on all cluster nodes during

the boot process. It is assumed that the GFS file systems are available when the cluster

resource manager service is started.

To integrate a GFS file system into the boot process, add the following line to the /etc/fstab

file:

/dev/vg_data/lv_data /data gfs noatime,nodiratime 0 0

5.4 Cluster Software Installation

There are multiple ways to install the Red Hat cluster software. In this setup, the following

installation procedure was used.

5.4.1 Core Cluster Software

1. Register the server in RHN

2. Enable entitlements for the software channels:

 RHEL Cluster-Storage

 RHEL Clustering

3. Install the required RPMs with the following yum command:

# yum install cman gfs-utils kmod-gfs lvm2-cluster rgmanager

5.4.2 Open-Sharedroot Software

Perform the following steps to install the open-sharedroot software packages:

1. Create the following yum configuration file /etc/yum.repos.d/comoonics.repo for the

open-sharedroot software channel:

[comoonics]

name=Packages for the comoonics shared root cluster

baseurl=http://download.atix.de/yum/comoonics/redhat-el5/productive/noarch/

enabled=1

gpgcheck=1

gpgkey=http://download.atix.de/yum/comoonics/comoonics-RPM-GPG.key

[comoonics-$basearch]

name=Packages for the comoonics shared root cluster

baseurl=http://download.atix.de/yum/comoonics/redhat-el5/productive/$basearch

enabled=1

gpgcheck=1