9. Technology Previews
Technology Preview features are currently not supported under Red Hat Enterprise Linux subscription services, may not be functionally complete, and are generally not suitable for production use. However, these features are included as a customer convenience and to provide the feature with wider exposure.
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 Section 8.3.3, “Network Driver Updates” for more information.
- New Systemtap Tracepoints. Refer to Section 8.1.1, “Debugging” for more information.
- New Gnu Compiler Collection version 4.4. Refer to Section 6, “Tools Updates” for more information.
- Updated ext4 support. Refer to Section 4, “Filesystems and Storage updates” for more information.
- glibc new MALLOC behaviour. Refer to Section 6, “Tools Updates” for more information.
- samba3x and ctdb on the x86_64 platform. Refer to Section 4, “Filesystems and Storage updates” for more information.
- Clustering with KVM hypervisor. Refer to Section 2, “Clustering Updates” for more information.
- The
fence_virshfence agent is provided in this release of Red Hat Enterprise Linux as a Technology Preview. Refer to Section 2.1, “Fencing Improvements” 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)
- USB passthough with the KVM hypervisor is considered to be a Technology Preview for the 5.4 release.
- In Red Hat Enterprise Linux 5.4, Logical Partition (LPAR) support for the cluster-suite is considered a Technology Preview. (BZ#480662, BZ#498083)
- The
xorg-x11-qxl-drvX11 video driver for the qemu QXL video accelerator has been added to 5.4 as a Technology Preview. (BZ#489806)
