Top 5 Features of New Red Hat Linux

Red Hat has free its stylish version of its flagship operative grouping RHEL (Red Hat Enterprise Linux) 5.4, and there's a aggregation to same in this newborn playing Linux.

I've been using RHEL and its twins, CentOS and Oracle Unbreakable Linux, since period one, and I same them a aggregation for playing computer use. Of these releases, RHEL 5.4 is the most awesome of the lot, for these reasons:

1) Baked-in virtualization. This edition of RHEL incorporates KVM (Kernel-based Virtual Machine). KVM, unlike VMware or Citrix Systems' XenServer, isn't an add-on virtualization program; it's actually conception of the operative system. Indeed, as the study suggests, it's built right into the UNIX kernel.

As Jim Whitehurst, Red Hat's CEO, told Evangelist Fontana of NetworkWorld, "KVM makes RHEL UNIX deployments countenance the same whether they are realistic or physical... [so] every of those thousands of man eld of impact put into processes and direction for UNIX crapper be practical to realistic instances."

Red Hat is not the exclusive consort to conceive that virtualization should no individual be an extra but instead, should be conception of the operative system. Microsoft is doing the same abstract with its copyrighted Hyper-V technology in Server 2008 R2. Unlike Hyper-V, though, which the histrion Group for digit doesn't conceive is primed for maturity time yet, KVM is primed for both diminutive playing to enterprise accumulation center use.

I've used KVM myself, and I'm impressed. Red Hat's KVM supports up to 16 realistic machines, each of which crapper hit up to 256GB of RAM. And, since they impact just same real machines, you crapper control them with the customary RHEL direction tools. This is the stuff I poverty on my datacenter computers.

2) High-end processor support: The newborn RHEL also includes hold for Intel Xeon Processor 5500 Nehalem EP processors and AMD Stamboul platforms. It also includes hold for IBM POWER mid-range and System z mainframes. In another words, it supports the kind of hardware needed for high-end virtualization and darken computing.

3) To really attain ingest of every this noesis on the processing side, you requirement to be able to deploy it to clients â€" and RHEL does this well. It today includes meliorate hold for InfiniBand and Fibre Channel over Ethernet for those nowadays when gigabit networking isn't alacritous enough. RHEL also today supports sharp meshwork adapters that allow processors to handle GRO (Generic Receive Offload). Network cards with GRO relieve CPUs of the charge of dealing with 10Gb and faster networks. When users, same the high-frequency traders of modern stock exchanges, poverty deals done in milliseconds every millisecond counts.

4) Improved planning tools. All that newborn pace and virtualization functionality is great, if you crapper ingest it. With RHEL's reinforced SystemTap action monitoring toolset, it's gotten even easier to see what's what with your C++ applications. RHEL also today includes some newborn noise essence tracepoints to attain chronicle easier to monitor performance.

5) Virtual desktops ahoy? Although Red Hat didn't attain a bounteous care about it, RHEL 5.4 also includes Solid ICE/SPICE (Simple Protocol for Independent Computing Environments) screen virtualization and direction support. Looking intimately at the RHEL promulgation notes revealed that, while there's no stand-alone RHEL 5.4 screen coming soon, there is hold for realistic desktops.

To be precise, you'll be able to rush RHEL 5.4 desktops, which separate within KVM computer instances, with PXE (Preboot eXecution Environment). This is still a impact in progress. For example, these realistic desktops exclusive hit "Technology Preview" hold at this point. In another words, don't rely on it. I'd hoped for meliorate realistic screen hold from Red Hat, at small the principle are in there.

Want to undergo more? Visit Red Hat's RHEL site. I think, aside of Red Hat's disinclination to do much with the UNIX desktop, you'll same it.