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SUSE Linux Enterprise High Availability Extension is an integrated suite of robust open-source, clustering technologies that enable enterprises to implement highly available Linux clusters and eliminate single points of failure. Used with SUSE Linux Enterprise Server, it helps companies maintain business continuity, protect data integrity and reduce unplanned downtime for their mission-critical Linux workloads.
SUSE Linux Enterprise High Availability Extension 11 SP3 provides a complete set of essential features for:
It is optimized for and tightly integrated with SUSE Linux Enterprise Server ensuring customers have the most robust, secure, up-to-date high availability solution. Based on an innovative, highly flexible policy engine, it supports a wide range of clustering scenarios including Metro-Area clusters.
SUSE Linux Enterprise High Availability Extension 11 SP3 is supported in virtual and physical environments on all hardware architectures supported by SUSE Linux Enterprise Server 11 SP3, including: x86, x86_64, Itanium, IBM POWER and IBM System z.
Clusters between physical and virtual instances are supported, all nodes must run on the same architecture, all guest and hypervisor environments supported by SUSE Linux Enterprise Server 11 SP3 are supported.
Customers that require Geographical (GEO) Cluster support can purchase a GEO Clustering for SUSE Linux Enterprise High Availability Extension subscription, which enables clustering between data centers across unlimited distances and ensures maximum disaster tolerance.
SUSE Linux* Enterprise High Availability Extension (SLE HA) is available for download for each available platform as two ISO images. Media 1 contains the binary packages, media 2 the source code.
You can add the High Availability Extension Service Pack 3 to SUSE Linux Enterprise Server 11 Service Pack 3 as an add-on product at install time or later.
To add the HA extension while installing SUSE Linux Enterprise Server 11 Service Pack 3, select the "Include Add-On Products from Separate Media" box on the Installation Mode Screen. Depending on your installation, you can add the HA Extension from media 1 or from a remote installation source, such as an FTP server, on the next screen.
To add the HA extension after you have already installed SUSE Linux Enterprise 11 Service Pack 3, start YaST2. Go to Software - Add-On Products add media 1 of the HA extension or a remote installation source. You can then either manually select the specific packages you want to install, or choose from the predefined patterns under the Install and Remove Software option. If you don't find a specific package that you need in any of the suggested usage patterns, try the package search. Some packages might not be included in a pattern.
You can then select the predefined HA pattern to automatically select the recommended packages for the HA extension, or manually choose a different list.