Published at LXer:

In the current business environment, it is essential that databases, as well as other components of IT infrastructure, remain functional at all times. Downtime of databases is increasingly expensive to companies, and the industry is searching for ways to avoid planned or unplanned downtime. Hosting organizations widely depend on commercial high-availability suites, such as Veritas Cluster Server or Sun Cluster, that provide robust, very customizable, and flexible failover capabilities to a wide range of applications. However, these solutions also carry a significant price tag.

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