Enterprise Linux 3 is also written to a single code base, which improves code stability, maintainability, and security, Stevens says. The new version also supports a wider variety of hardware platforms, including those running Advanced Micro Devices Inc.'s 64-bit-compatible Opteron processor and IBM's iSeries, pSeries, zSeries, and S/390 servers. Enterprise Linux continues to support Intel x86 and Itanium platforms as well.
With Enterprise Linux 3, Red Hat has also expanded its basic operating-system offerings to include file-clustering software and developer tools. The file-clustering software supplements the basic clustering capabilities already built into Linux.
Red Hat is doing a lot to remove things that have been an impediment to Linux in the past, IDC research director Al Gillen says. "Customers are going to want off-the-shelf applications that are commercially supported," he says. "And it's really nice to get these from the same company that you get the operating-system software."
Red Hat Enterprise Linux 3 is available now as part of an annual subscription that includes Red Hat Network and services. Current Red Hat Enterprise Linux subscribers can upgrade now via Red Hat Network, while customers buying through Red Hat partners will be able to get version 3 of Red Hat Enterprise Linux AS, ES, or WS on preconfigured hardware platforms before year's end. AS is designed for servers with more than two processors and that run databases or large enterprise apps. ES is tuned for single- or dual-processor configurations running Web or file and print servers. WS is the operating system for single- or dual-processor workstations.