Configuration Examples
A few examples of what happens during a fail over using LifeKeeper for Linux NAS Recovery Kit are provided below.
Configuration 1: Active/Standby Configuration Example
In this configuration, Server 1 is considered active because it is running the NAS Recovery Kit software and has imported (mounted) the file system from the NAS device. Server 2 does other processing. If Server 1 fails, Server 2 gains access to the file system and uses the LifeKeeper secondary hierarchy to make it available to clients.
Configuration Notes:
- The NAS software must be installed on both servers.
- The file system has been imported from a NAS device.
- Server 2 should not access files and directories on the NAS device while Server 1 is active.
Configuration 2: Active/Active Configuration Example
An active/active configuration consists of two or more systems actively running the NAS Recovery Kit software and importing file systems from NAS device(s).
Configuration Notes:
- The NAS software must be installed on both servers.
- Initially, Server 1 imports a file system and Server 2 imports a different file system. In a switchover situation, one system can import both file systems.
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