Red Hat SATELLITE 5.3.0 RELEASE NOTES Información técnica descargar pdf (Pagina 19)

4.1 Red Hat Enterprise Linux

Red Hat Enterprise Linux (RHEL) is the world's leading open source application platform. On

one certified platform, RHEL offers a choice of:

• Applications - Thousands of certified ISV applications

• Deployment - Including standalone or virtual servers, cloud computing, and software

appliances

• Hardware - Wide range of platforms from the world's leading hardware vendors

Red Hat released the fifth update to RHEL 5: Red Hat Enterprise Linux 5.5.

RHEL 5.5 is designed to support newer Intel Xeon

Nehalem-EX platform as well as the AMD

Opteron™ 6000 Series platform (formerly code named “Magny-Cours”). The new platforms

leverage Red Hat’s history in scalable performance with new levels of core counts, memory

and I/O, offering users a very dense and scalable platform balanced for performance across

many workload types. To increase the reliability of these systems, Red Hat supports Intel’s

expanded machine check architecture, CPU fail-over and memory sparing.

Red Hat also continues to make enhancements to our virtualization platform. New to RHEL

5.5 is support for greater guest density, meaning that more virtual machines can be supported

on each physical server. Our internal testing to date has shown that this release can support

significantly more virtual guests than other virtualization products. The new hardware and

protocols included in the latest release significantly improve network scaling by providing

direct access from a guest to the network.

RHEL 5.5 also introduces improved interoperability with Microsoft Windows 7 with an update

to Samba. This extends the Active Directory integration to better map users and groups on

Red Hat Enterprise Linux systems and simplifies managing file systems across platforms.

An important feature of any RHEL update is that kernel and user application programming

interfaces (APIs) remain unchanged, ensuring RHEL 5 applications do not need to be rebuilt

or re-certified. The unchanged kernel and user APIs also extend to virtualized environments.

With a fully integrated hypervisor, the application binary interface (ABI) consistency offered by

RHEL means that applications certified to run on RHEL on physical machines are also

certified when run on virtual machines. With this, the portfolio of thousands of certified

applications for Red Hat Enterprise Linux applies to both environments.

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Red Hat SATELLITE 5.3.0 RELEASE NOTES Información técnica Pagina 19