RHEL 5.3 readied for more virtualization duties

The latest version of Red Hat Enterprise Linux also features new process tracing and encryption tools

The latest release of Red Hat Enterprise Linux, Version 5.3, greatly enhances the operating system's ability to run x86-64 virtualized environments, according to the company.

Red Hat has tweaked the operating system to allow for greater virtualization by, among other things, increasing to 126 the number of physical CPUs that can be supported per RHEL instance. The company also boosted maximum memory per machine to 1T and increased the limits on virtual CPU and memory, paravirtualized device drivers, and the number of allowed users for disks and network interfaces.

It is also the first version of RHEL to feature a fully supported version of OpenJDK, an open-source implementation of Java Platform, Standard Edition 6. Any Java program written for Java SE 6 will run on this version of RHEL, according to the company.

Other new packages include SystemTap, which is RHEL's first tracing and profiling application, and a new set of power-management controls and full-disk encryption at the block or file system level.

RHEL 5.3 also aggregates the various bug fixes that have been issued in the past few months and includes 150 software updates and upgrades. It is the first version of RHEL to support Intel's upcoming Tylersburg/Nehalem generation of microprocessors.


About the Author

Joab Jackson is the senior technology editor for Government Computer News.

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