HP Serviceguard for Linux Version A.11.19 Deployment Guide, September 2012

Set up the PATH and MANPATH environment variables

Add cluster node entries to /etc/hosts

Configure the firewall (if enabled) with Serviceguard-specific settings

Configure the /etc/nsswitch.conf settings

Configure lvm for exclusive volume group activation

This script should be run from one of the servers and will perform configuration updates for all nodes

intended for the cluster. The user will be prompted for the list of servers. Public ssh key authorization

should be configured to permit the script to run on each (remote) server without the need to prompt for

passwords.

To set up ssh keys, replace <othernode> with the hostname (or IP address) of the remote server(s), for

example “eve.cup.hp.com”. Execute the following command on the server where the script will be

invoked to configure remote access to the other server(s) intended for the cluster:

1. Generate the keys

NOTE: Use the default file name (id_rsa) for the keys and leave the passphrase empty (if

desired).

2. Copy the public key to the other node using the following command (as one line):

NOTE: This step will fail if the “/root/.ssh” does not exist on the <othernode>. If it does not

exist, create it.

3. Append the public key from the current node to the authorized_keys file on the other node by

executing the following command (as one line):

4. Set the shell for the ssh authentication agent using the following command:

5. Add the rsa identity to the ssh authentication agent

NOTE: To verify that the ssh keys have been set up properly, try to ssh to the other node. If not

prompted for a password, the ssh keys have been set up properly.

To run the script, follow these steps:

1. Edit the EasyConfig.config file. The content is shown here. User inputs are shown in bold.

For the list servers (including the server where the script is being executed), make sure the

hostname and IP Address are TAB separated. When done, save and quit (“[Esc]:wq!”). You

will be returned to the script for further processing.

############################################################

# Enter yes or no to indicate whether Virtual Machines are

# participating as nodes in the cluster. Please provide the

# information on same line as the question.

############################################################

Will this cluster have any VM(s) participating as nodes? [yes|no] : no

############################################################

# Enter the node names and IP address value pairs of the