9. 技术预览
红帽企业版 Linux 订阅服务目前不支持技术预览特性，它们可能不具备完全功能，且通常不适用于产品使用。包含这些特性是为方便客户并在更大范围公布这些特性。
The following Technology Previews are new or enhanced in Red Hat Enterprise Linux 5.4. For detailed information on the Technology Previews in Red Hat Enterprise Linux 5.4, refer to the Technology Previews section of the 5.4 Technical Notes located at http://www.redhat.com/docs/manuals/enterprise/
- New Emulex Tiger Shark converged network adapter driver. Refer to 第 8.3.3 节 “网络驱动程序更新” for more information.
- New Systemtap Tracepoints. Refer to 第 8.1.1 节 “调试” for more information.
- New Gnu Compiler Collection version 4.4. Refer to 第 6 节 “工具更新” for more information.
- Updated ext4 support. Refer to 第 4 节 “Filesystems and Storage updates” for more information.
- glibc new MALLOC behaviour. Refer to 第 6 节 “工具更新” for more information.
- samba3x and ctdb on the x86_64 platform. Refer to 第 4 节 “Filesystems and Storage updates” for more information.
- Clustering with KVM hypervisor. Refer to 第 2 节 “群集更新” for more information.
- The
fence_virshfence agent is provided in this release of Red Hat Enterprise Linux as a Technology Preview. Refer to 第 2.1 节 “栅栏（Fencing）改进” for more information. - Stream Control Transmission Protocol (SCTP) support for the Cluster Suite and the redundant ring configuration of clusters are considered Technology Previews in Red Hat Enterprise Linux 5.4. (BZ#457956)
- 在 5.4 发行本中将 KVM 监控程序的 USB 机器转移归向视为技术预览。
- 在红帽企业版 Linux 5.4 中，将群集套件中的逻辑分区（LPAR）视为技术预览。(BZ#480662，BZ#498083)。
- 在 5.4 中为 qemu QXL 视频加速器添加了
xorg-x11-qxl-drvX11 视频驱动程序作为技术预览。(BZ#489806)
