Managing HP Serviceguard for Linux Ninth Edition, April 2009

sfdisk -R /dev/sdc
You can check the partition table by using the command:
fdisk -l /dev/sdc
NOTE: fdisk may not be available for SUSE on all platforms. In this case, using
YAST2 to set up the partitions is acceptable.
Setting Up and Running the Quorum Server
If you will be using a quorum server rather than a lock LUN, the Quorum Server
software must be installed on a system other than the nodes on which your cluster will
be running, and must be running during cluster configuration.
For detailed discussion, recommendations, and instructions for installing, updating,
configuring, and running the Quorum Server, see the HP Serviceguard Quorum Server
Version A.04.00 Release Notes at http://www.docs.hp.com -> High Availability
-> Quorum Server. See also the discussion of the QS_HOST and QS_ADDR
parameters under “Cluster Configuration Parameters ” (page 100).
Creating the Logical Volume Infrastructure
Serviceguard makes use of shared disk storage. This is set up to provide high availability
by using redundant data storage and redundant paths to the shared devices. Storage
for a Serviceguard package is logically composed of LVM Volume Groups that are
activated on a node as part of starting a package on that node. Storage is generally
configured on logical units (LUNs).
Disk storage for Serviceguard packages is built on shared disks that are cabled to
multiple cluster nodes. These are separate from the private Linux root disks, which
include the boot partition and root file systems. To provide space for application data
on shared disks, create disk partitions using the fdisk, and build logical volumes with
LVM.
You can build a cluster (next section) before or after defining volume groups for shared
data storage. If you create the cluster first, information about storage can be added to
the cluster and package configuration files after the volume groups are created.
See “Volume Managers for Data Storage” (page 83) for an overview of volume
management in HP Serviceguard for Linux. The sections that follow explain how to
do the following tasks:
• Displaying Disk Information (page 160)
• Creating Partitions (page 161)
• Enabling Volume Group Activation Protection (page 163)
• Building Volume Groups: Example for Smart Array Cluster Storage (MSA 2000
Series) (page 164)
• Building Volume Groups and Logical Volumes (page 165)
Preparing Your Systems 159