This frees programmers from having to predict performance, which can be difficult on complex systems, SGI said. XFS provides a guaranteed-rate I/O system, which allows applications to reserve specific bandwidth to or from the file system so that a requested level of performance is met for a given time. XFS can recover from most unexpected interruptions in a few seconds, independent of the overall file system size, according to SGI. On a system with terabytes of data, this can take several hours. Journaled file systems speed recovery from system failures because they don't need to scan the file structures for errors and make corrections during a reboot. 'It has 64-bit addressing and is well tested since we introduced it on our own systems back in 1994.'Ĭrucially, XFS has file journaling, a feature that the Linux community has until now been unable to deliver, preventing Linux from being used for mission-critical and high-availability applications, he said. 'XFS will substantially improve Linux,' he said. That will enable Linux to scale to very large systems, Ek said in a keynote speech at LinuxWorld 2000 here today. SGI is strongly focused on developing for Intel Corp.'s IA-32 and IA-64 processors and the open-source Linux operating system, with a key initiative being SGI's XFS file system. (SGI) will put more effort into Linux-based developments and consequently less into its proprietary Irix operating system over the next few years, according to Jansen Ek, vice president of SGI Asia-Pacific.

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