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SUSE Linux Enterprise High Availability Extension

An industry-leading open source high availability clustering system designed to virtually eliminate unplanned downtime, be easy to use and be deployed in both physical and virtual environments.

Also included is Geo Clustering for SUSE Linux Enterprise High Availability Extension, designed to manage cluster servers in data centers anywhere in the world. High availability clustering helps to minimize data loss due to corruption or failure by protecting your data assets using your existing IT infrastructure.

High availability clustering is used to automate application and data recovery. You can use our flexible, policy-driven clustering solution to implement highly available Linux clusters and eliminate single points of failure. Your servers are continuously monitored, and when a fault or failure occurs, the workload is transferred from one server to another, or the application is automatically restarted on a known working system. This helps you maintain business continuity and minimize unplanned downtime.

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Find out what’s new in the latest release notes ›

Key Features

Flexible, policy-driven clustering and continuous data replication—boost flexibility while improving service availability and resource utilization by supporting the mixed clustering of both physical and virtual Linux servers. Protect workloads across globally distributed data centers.

Setup, administration, management and monitoring—save time by easily managing clustered Linux servers with a powerful unified interface to quickly and easily install, configure and manage clusters, plus a simple, user-friendly tool for monitoring the clustered environment.

Continuous data replication across cluster servers in data centers anywhere in the world and minimize data loss due to corruption or failure by protecting your data assets using your existing IT infrastructure.

Cluster-aware file system and volume management for optimized performance.

Virtualization aware for managing virtual clusters as well as physical clusters.

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Tech Specs

Recommendations for specific uses

512 MB to 4 GB RAM, at least 256 MB per CPU
44 GB hard disk space, 16 GB for snapshot/rollback of the OS
Network interface (ethernet, wireless or modem)
Network redundancy
I/O fencing mechanism and possibly shared storage
For Xen virtual host server, at least 512 MB RAM for each virtual host server
For KVM virtual host server, KVM's limits are equal to those of SUSE Linux Enterprise Server
For Xen or KVM virtual machines, at least an additional 256 MB RAM for each virtual machine

For print servers, a relatively faster processor or additional processors to improve server-based printing
For web servers, additional RAM to improve caching, and additional processors to improve web application performance
For database servers, additional RAM to improve caching, and using multiple disks for parallel I/O
For file servers, additional memory and disks, or a Redundant Array of Inexpensive Disks (RAID) system to improve I/O throughput

Minimum Linux server system requirements

Local installation: 512 MB RAM, 512 MB Swap recommended
2 GB available disk space (more recommended, 8.5 GB for all patterns)
16 GB for snapshot/rollback of the OS

DOCUMENTATION

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Success Stories

Les Enterprises Barrette

Increases processing speed with SAP HANA
Ensures ultra-high availability for key systems
Saves over USD100k in software subscription fees

Provides exceptional stability and uptime for SAP ERP and SAP HANA
Boosts performance, cutting reportgeneration time from hours to seconds
Strong system performance enables sales teams to work uninterrupted

Reduces time spent on routine administration tasks substantially despite doubling the number of instances
Streamlines SAP HANA operations with integrated management and support
Maximizes availability and business continuity of SAP HANA environments through innovative technology solutions

100% system uptime since installing SUSE solutions
User-friendly interface drives comprehensive management
Scalable operating system enables future business expansion

Controls IT costs in an expanding SAP landscape
Supports just-in-time operations and exceptional customer service by boosting availability
Reduces management workload for IT staff, freeing up time for innovation
Provides a stable, reliable model for future growth—aiding global expansion

Delivers high performance, providing a solid platform for SAP HANA
Small footprint and easy management helps Englmayer handle new demands at low cost
Eliminates single points of failure to help ensure high availability