Managing Serviceguard Fifteenth Edition, reprinted May 2008

Building an HA Cluster Configuration

Preparing Your Systems

Chapter 5214

Use the command insf -e on each node. This will create device files

corresponding to the three partitions, though the names themselves may

differ from node to node depending on each node’s I/O configuration.

Step 5. Define the lock LUN; see “Defining the Lock LUN”.

Defining the Lock LUN

Use cmquerycl -L to create a cluster configuration file that defines the

lock LUN.

• If the pathname for the lock LUN is the same on all nodes, use a

command such as:

cmquerycl -C $SGCONF/config.ascii -L /dev/dsk/c0t1d1 -n

• If the pathname for the lock LUN is different on some nodes, you

must specify the path on each node; for example (all on one line):

cmquerycl -C $SGCONF/config.ascii -n <node1> -L

/dev/dsk/c0t1d1 -n <node2> -L /dev/dsk/c0t1d2

These commands create a configuration file which you can apply to the

cluster configuration when you are ready to do so; see “Distributing the

Binary Configuration File” on page 249. See also “Specifying a Lock

LUN” on page 231.

CAUTION Once you have specified the lock LUN in the cluster configuration file,

running cmapplyconf will destroy any data on the LUN.

Setting Up and Running the Quorum Server

If you will be using a quorum server rather than a lock disk or 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

HP Serviceguard Quorum Server Version A.03.00 Release Notes at

http://www.docs.hp.com -> High Availability -> Quorum Server.