Describes how to complete SMW HA system configuration with site-specific information such as host names, IP addresses, and synchronized files.
Cray ships SMW HA systems that are completely installed and configured with Cray-specific host names and IP addresses instead of site-specific. The configuration must be complete on-site to reconfigure the system with site-specific IP addresses (required), change preassigned default host names (optional), and update the cluster configuration files with those changes.
The customization process updates the IP addresses and host names in the following configuration files:
- /etc/hosts
- /etc/hostname
- /etc/csync2/csync2.cfg
- /etc/csync2/csync2_cray.cfg
- /etc/sysconfig/network/ifcfg-eth0
- /etc/sysconfig/network/routes
- Determine the IP addresses and host names for the SMW HA cluster.
An SMW HA system requires the following site-dependent host names and IP addresses. Use this table to record the actual values for the site.
Table 1. Site-dependent Configuration Values for an SMW HA System| Description | Example | Actual Value |
|---|
| Virtual host name for SMW HA cluster | virtual-smw | |
| Host name for first SMW | smw1
| |
| Host name for second SMW | smw2 | |
| iDRAC host name on first SMW | smw1-drac | |
| iDRAC host name on second SMW | smw2-drac | |
| Customer network IP address for virtual SMW (the SMW HA cluster) | 173.31.73.165 | |
| IP address for first SMW | 173.31.73.60 | |
| IP address for second SMW | 173.31.73.61 | |
| iDRAC IP address on first SMW | 172.31.73.77 | |
| iDRAC IP address on second SMW | 172.31.73.79 | |
Important: The IP addresses for the virtual SMW HA cluster (virtual-smw) and the actual SMWs (smw1 and smw2) must be on the same subnet.
- Before beginning the site customization, the network administrator or site administrator must assign the IP addresses to the corresponding host names for the SMW HA cluster.
- If any site-customization and local changes were made on the first SMW before the SMWHA software was installed and configured, duplicate these changes on the second SMW.
- If any patches were installed on the first SMW, ensure that these patches are also installed on the second SMW.
- Use the following procedures to make the necessary customizations. Note that these procedures require root privilege.
- Change IP Addresses, Host Names, Name Server, and Route Settings on the First SMW
- Change the Cluster Configuration on the First SMW
- Change IP Addresses, Host Names, Name Server, and Route Settings on the Second SMW
- Finish Customizing a Preinstalled SMW HA System
- Verify Cluster Status After Customization
- Change Default SMW, iDRAC, and STONITH Passwords After Customization
- (Optional) Make other changes to the cluster, such as the email address for failover notification, the file synchronization list, or the migration threshold for cluster resources. See Optional Cluster Configuration Changes.
Trouble? See "Debug Failure of a Preinstalled SMW HA System" in the troubleshooting section of XC™ Series SMW HA Administration Guide (S-2551).