On May 16, 2005, at 8:37 PM, Wayne Wilkin wrote: > So if some users find defragin un necessary then how do you explain > the mac os inability to keep with the 15% rule. Which states that > in order for directory to be successfully rebuilt that the > directory should have at least 15% of the hard drive space > continous free space. How many times have I gotten an error in > diskwarrior stating that a fail safe rebuilding of the directory is > not guaranteed because the drive is to framented. Which means to me > that if the OS is doing it's job of defragin itself then this > should not be a problem. 15%? That's something that's internal to DiskWarrior... That's a heck of a lot of space. FWIW, I have _never_ had disk corruption since journaled volumes have been the norm. Kirk Author of: The Mac OS X Command Line: Unix Under the Hood - - - - - - Read my blog: Kirkville -- http://www.mcelhearn.com Musings, Opinion and Miscellanea, on Macs, iPods and more Kirk McElhearn | Chemin de la Lauze | 05600 Guillestre | France