What's New in 11
SUSE Linux Enterprise Server
SUSE Linux Enterprise Server 11 now supports Swap over NFS. Data center managers can leverage remote storage for local server needs and denser “diskless” server systems to reduce their acquisition, implementation, administration, and management costs. By using Swap over NFS, data center managers can cost-effectively protect their systems against application restarts and expensive downtime. Also new in SUSE Linux Enterprise Server 11 are control groups and CPUset for more fine-grained management of CPU, memory, storage and networking resources.
Green IT innovations
SUSE Linux Enterprise Server 11 features innovative power saving capabilities that let you derive maximum performance per watt. “Tickless idle” is a new kernel feature that eliminates periodic timer ticks when system CPUs are idle, allowing the CPU to remain in power-saving states for longer periods of time, lowering power consumption and reducing cost. Also included in SUSE Linux Enterprise Server 11 are more granular power profiles which are file-based and can be more easily used by IT managers for enterprise-wide power management.
Fastest update stack
SUSE Linux Enterprise Server 11 includes a new software package management system that automates the process of installing, removing, upgrading, and configuring software packages. Over 100 times faster than its predecessor, it provides the fastest performance of any enterprise Linux distribution. Systems that might have taken hours to update now take just minutes.
SUSE Linux Enterprise High Availability Extension
Continuous data replication
SUSE Linux Enterprise High Availability Extension includes DRBD, a leading open source networked disk management tool. Using DRBD, IT managers can build single partitions from multiple disks that mirror each other, and make data highly available. They can also quickly restore their clustered services by taking advantage of its fast data resynchronization capabilities.
Cluster-aware file system and volume management
SUSE Linux Enterprise High Availability Extension includes the latest version of OCFS2, which is now a shared-disk POSIX-compliant generic cluster file system. Using OCFS2, customers can now cluster a much wider range of applications for higher availability using cluster-aware POSIX locking, as well as resize their clusters and add new nodes on the fly. Also included is cLVM2, a clustered logical volume manager, to provide IT managers with a single, cluster-wide view of storage.
Flexible, policy-driven clustering
SUSE Linux Enterprise High Availability Extension uses OpenAIS for clustering messaging and membership. Also new is Pacemaker, a highly scalable cluster resource manager with a flexible policy engine that supports n-node clusters and virtual environments. In addition, the product includes a wide assortment of resource agents for numerous applications. In short, you get everything needed to continuously monitor the health of your physical and virtual resources, manage dependencies, and automatically stop and start services based on configurable rules and policies—and do so more affordably than ever.
User-centric management tools for clustering
SUSE Linux Enterprise High Availability Extension includes a powerful new unified command line interface. It lets experienced IT managers quickly and easily install, configure and manage their clustered Linux servers. Also included is an improved graphical user interface that provides less experienced administrators with a simple, user-friendly tool for monitoring and managing their clustered environment.
SUSE Linux Enterprise Server for System z
Cross-architecture debugging for mainframe Linux
System z core dumps can now be analyzed in x86 systems, negating the need for a duplicate System z server. This greatly improves ease of management and lowers cost.
Dynamic add/remove of CPU and memory for mainframe Linux
Resources for Linux guests running under z/VM can be adjusted on-the-fly while in operation. A pool of CPUs is dynamically allocated to a Linux guest and used as needed.
Higher performance analysis in the disk subsystem
This capability gives performance analysts the same type of view into SCSI over Fibre Channel Protocol that they have with mainframe Direct Access Storage Devices (DASD).
Vertical CPU management
This new release helps generate maximum performance from System z10 servers by maintaining awareness of the server's NUMA characteristics.
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