Feeds

RHEL 6 - your sensible but lovable friend

Ubuntu it isn't

The essential guide to IT transformation

Review The first major update for Red Hat Enterprise Linux in more than three years hit last month, and judging by the traffic that took down Red Hat's download servers, it's long over due.

RHEL 5 came out in March 2007 with the Linux 2.6.18 kernel and while incremental updates have added kernel updates and new features, it's showing its age.

Of course, the whole point of running an enterprise distro like RHEL is that it isn't Ubuntu or Fedora, and it doesn't completely change all the rules every six months.

Still, there's a balance to be had, and even by enterprise standards RHEL 6 is a long time coming. But the RHEL 6 beta is here and the good news is that there's plenty to love.

For RHEL 6, Red Hat is using a Fedora development release based on the Linux 2.6.32 kernel - technically, it's a hybrid of several recent kernels. Red Hat engineers have hardened the Fedora base and added quite a few features - with a strong emphasis on virtualization.

One of the main goals for RHEL 6 was to make managing virtual servers as easy as managing physical machines, which means the bulk of the new software features are found in KVM. It also means that Xen is gone, though that's hardly surprising since Red Hat purchased Qumranet - creators of KVM - back in 2008.

Formats in RHEL6

A wide selection of disk formatting options include ext4

RHEL 6 builds on the KVM-based virtualization found in RHEL 5.5 and earlier releases, adding a number of performance and hardware support upgrades.

Also new for virtual guests is the SELinux sandbox feature that allows guest machines to run in isolated environments. The new sandbox features can be applied to just about any untrusted code you'd like to execute, but it's particularly handy with virtual machines.

Other improvements in the beta include changes to the way RHEL 6 handles multi-core chips. In theory, RHEL could use 64,000 cores in a single system image. Along with the better multi-core support comes the same support for new chip architectures that we saw in RHEL 5.5, including Intel's Xeon 5600 and 7500 and the Power7 from IBM.

Another big change in the RHEL 6 beta is the wide selection of disk formatting options, including ext4. You know a Linux feature has arrived when it makes its way to the conservative enterprise releases like RHEL and such is the case with ext4 file system, which is now the default filesystem format in RHEL 6. In addition to ext4, the XFS filesystem is now supported.

Secure remote control for conventional and virtual desktops

Next page: What ever you want

More from The Register

next story
The Return of BSOD: Does ANYONE trust Microsoft patches?
Sysadmins, you're either fighting fires or seen as incompetents now
Munich considers dumping Linux for ... GULP ... Windows!
Give a penguinista a hug, the Outlook's not good for open source's poster child
Intel's Raspberry Pi rival Galileo can now run Windows
Behold the Internet of Things. Wintel Things
Linux Foundation says many Linux admins and engineers are certifiable
Floats exam program to help IT employers lock up talent
Microsoft cries UNINSTALL in the wake of Blue Screens of Death™
Cache crash causes contained choloric calamity
Eat up Martha! Microsoft slings handwriting recog into OneNote on Android
Freehand input on non-Windows kit for the first time
prev story

Whitepapers

Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Top 10 endpoint backup mistakes
Avoid the ten endpoint backup mistakes to ensure that your critical corporate data is protected and end user productivity is improved.
Top 8 considerations to enable and simplify mobility
In this whitepaper learn how to successfully add mobile capabilities simply and cost effectively.
Rethinking backup and recovery in the modern data center
Combining intelligence, operational analytics, and automation to enable efficient, data-driven IT organizations using the HP ABR approach.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.