Red Hat Enterprise Linux/6

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2010年11月11日 (四) 02:53Allen (讨论 | 贡献)的版本

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http://www.redhat.com/about/news/prarchive/2010/new-standard.html 红帽企业 Linux 6.0 正式版已发布] (2010.11.10)

红帽企业 Linux 6.0 正式版有以下技术更新与创新:

高效性,可伸缩,可靠性

可伸缩

  • Red Hat Enterprise Linux 6 supports more sockets, more cores, more threads, and more memory.

Efficient Scheduling

  • The CFS schedules the next task to be run based on which task has consumed the least time, task prioritization, and other factors. Using hardware awareness and multi-core topologies, the CFS optimizes task performance and power consumption.

Reliability, Availability, and Serviceability (RAS)

  • RAS hardware-based hot add of CPUs and memory is enabled.
  • When supported by machine check hardware, the system can recover from some previously fatal hardware errors with minimal disruption.
  • Memory pages with errors can be declared as "poisoned", and will be avoided.

文件系统

  • The new default file system, ext4, is faster, more robust, and scales to 16TB.
  • The Scalable File System Add-On contains the XFS file system, which scales to 100TB.
  • The Resilient Storage Add-On includes the high availability, clustered GFS2 file system.
  • NFSv4 is significantly improved over NFSv3, and is backwards compatible.
  • Fuse allows filesystems to run in user space allowing testing and development on newer fused-based filesystems (such as cloud filesystems).

高可用性

  • The web interface based on Conga has been re-designed for added functionality and ease of use.
  • The cluster group communication system, Corosync, is mature, secure, high performance, and light-weight.
  • Nodes can re-enable themselves after failure without administrative intervention using unfencing.
  • Unified logging and debugging simplifies administrative work.
  • Virtualized KVM guests can be run as managed services which enables fail-over, including between physical and virtual hosts.
  • Centralized configuration and management is provided by Conga.
  • A single cluster command can be used to manage system logs from different services, and the logs have a consistent format that is easier to parse.

能量管理

  • The tickless kernel feature keeps systems in the idle state longer, resulting in net power savings.
  • Active State Power Management and Aggressive Link Power Management provide enhanced system control, reducing the power consumption of I/O subsystems. Administrators can actively throttle power levels to reduce consumption.
  • Realtime drive access optimization reduces filesystem metadata write overhead.

资源管理

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