NFS Server Recovery Kit Requirements

Before installing and configuring the LifeKeeper NFS Server Recovery Kit, be sure that your configuration meets the following requirements:

• Servers. The Recovery Kit requires two or more servers configured in accordance with the LifeKeeper requirements described in the SPS for Linux Technical Documentation and the SPS for Linux Release Notes. See the Release Notes for supported Linux distributions.

• LifeKeeper software. You must install the same version of LifeKeeper software and any patches on each server. Please refer to the SPS for Linux Technical Documentation and the SPS for Linux Release Notes for specific LifeKeeper requirements.

• LifeKeeper IP Recovery Kit. You must have the same version of the LifeKeeper IP Recovery Kit on each server.

• IP network interface. Each server requires at least one Ethernet TCP/IP-supported network interface. In order for IP switchover to work properly, user systems connected to the local network should conform to standard TCP/IP specifications.

*Note: Even though each server requires only a single network interface, you should use multiple interfaces for a number of reasons: heterogeneous media requirements, throughput requirements, elimination of single points of failure, network segmentation and so forth.

• TCP/IP software. Each server also requires the TCP/IP software.

• nfs-utils software. Each server must have a high availability enabled version of the nfs-utils package installed and configured prior to configuring LifeKeeper and the LifeKeeper NFS Server Recovery Kit (on some OS distributions, nfs-utils is provided via another package). The same version must be installed on each server.

The LifeKeeper Installation Support setup script will configure nfs-utils for use in an HA environment. Additionally, when using the kit to protect NFS v2/v3 exports, the init scripts NFS lock (/etc/init.d/nfslock) and NFS server (/etc/init.d/nfs or /etc/init.d/nfsserver depending on the Linux distribution) should be configured to start automatically on system boot. When protecting NFS v4 root exports, they should not be configured to automatically start at boot.

• Refer to the SPS for Linux Installation Guide for specific instructions on how to install or remove the LifeKeeper NFS Server Recovery Kit.