SUSE® Linux Enterprise High Availability Extension is an affordable, integrated suite of innovative open source clustering technologies. It lets you implement highly available Linux clusters. This helps you maintain business continuity, protect data integrity, and reduce unplanned downtime for your mission-critical Linux workloads.
It delivers all of the essential monitoring, messaging, and cluster resource management functionality of proprietary third-party solutions, but at a more affordable price. High availability is now within the reach of any business.
- Flexible, policy-driven clustering - You can minimize unplanned downtime with this flexible, policy-driven clustering solution. Make sure you have continuous access to your mission-critical applications and data.
- Continuous data replication - Real time synchronization quickly restores clustered services, and intelligent locking mechanisms maintain data integrity.
- Cluster-aware file system and volume management - An integrated solution delivers all of the essential cluster technologies you need to cost effectively meet your service level agreements.
- User-centric management tools - Save time and be more productive with graphical and command line tools. You can easily configure and manage your distributed storage systems and high availability clusters.
Need help getting started? Check out these How-To's:
- Install and Configure the High Availability Extension pack
- Basic Resource Configuration
- Configure SBD Stonith resource
- Add an additional node
- Add Apache resource
- Configure an Oracle resource
- Created a cloned (parallel) filesystem resource
Features of the SLES 11 High Availability Extension
- OpenAIS messaging and membership layer (SAF-compliant)
- Pacemaker cluster resource manager
- Oracle Cluster File System (OCFS2)
- Clustered logical volume manager (cLVM2)
- Distributed replicated block device (DRBD)
- Graphical user interface
- Unified command line interface
- YaST modules for DRBD, OpenAIS and multipath
- Resource agents
- For third party apps - SAP, IBM WebSphere, DB2, Informix, Oracle and VMware
- For many open source appsFor many open source apps
- Xen aware cluster resource manager
What's new in Service Pack 1
- Metro-area clusters
- Node recovery with ReaR
- Improved OCFS2 with less file fragmentation and improved file operations (est >20% performance improvement)
- Improved DRBD that supports data compression and simultaneous 3 node synchronous / asynchronous replication cmirrord (SAN-based cluster concurrent RAID1, live storage migration)
- Web GUI
- Cluster Test Drive (simulator)
- YaST2 module for load balancer
- Cluster aware configuration sync (eases management)
- Extended documentation
- Agents for DRBD, postfix, squid, libvirt, iSCSI and SAP
- Support for CTDB (clustered Samba)
- OCFS2 "reflinks" (cluster-wide snapshots, fast and space-efficient VM cloning, backup)
- KVM support