On Mon, Apr 26, 2004 at 10:18:35AM +0200, Luca Ferrari wrote: > Hi, > I've got a simple question about disk use under windows and unix. While > windows sometimes requires a de-fragmentation of the disk, it seems as Linux > (and even Unix) does not. I believe this is due to a better defragmentation > alghoritm, but I'm not sure. Is there a daemon which does this transparently > or what? No, Unix file systems, in general, are designed to have less performance issues from fragmentation. They aren't as susceptible inherently to fragmentation problems. As a result, there aren't any defrag tools around that I know of. You can always build your own. A backup to tape will sequence all the files contiguously on tape/disk, and a subsequent restore will put them back that way. If you bother, do some benchmarks for a particular file i/o before and after and I doubt you'll see much difference, unless your disk is very, very nearly full. -chuck - : send the line "unsubscribe linux-admin" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
