Path: utzoo!attcan!uunet!samsung!usc!ucsd!ucbvax!van-bc! From: lphillips@lpami.wimsey.bc.ca (Larry Phillips) Newsgroups: comp.sys.amiga Subject: Re: fsck for a hard disk? Message-ID: <1697@lpami.wimsey.bc.ca> Date: 5 Jun 90 22:55:01 GMT Lines: 39 Return-Path: To: van-bc!rnews In <1990Jun6.042910.297@foetus.syd.sgi.oz.au>, peterk@foetus.syd.sgi.oz.au (Peter Kerney.Silicon Graphics.Australia) writes: >From article <3396@teksce.SCE.TEK.COM>, by dales@teksce.SCE.TEK.COM (Dale Snell): >> That would certainly be a nice utility to have. Certainly the disk >> validator doesn't cut it, and as for DiskDoctor, the less said, the >> better. > >Diskdoctor sux! > >One thing I have noticed on my A590. If you visit the GURU while doing I/O, >when you reboot, the hard disk goes beserk. It seems to be doing 800 time the >amount of work when going through s:startup-sequence et. al. > >I dont know whether this is doing some type of fsck or what, but I haven't >had any corruptions yet (quick, where is a piece of wood, touch). It's being validated. The validator ( L:Disk-Validator ), checks the root block and sector zero, and if it finds anything amiss, does further checks. When you stop a write in progress through a GURU, power hit, and so on, it can leave the bitmap in a 'funny' state, and the 'bitmap valid' flag will be turned off. When the validator finds this, it will scan through the entire directory structure, rebuilding an image of the bitmap. When it's done, it will wrote the bitmap out and set the bitmap valid flag on again. The validator will not attempt to repair any file system inconsistencies it finds. >A590's have ffs on them. Anyone throw any further light on this. Yup, they do at that. What further light are you in need of? -larry -- The raytracer of justice recurses slowly, but it renders exceedingly fine. +-----------------------------------------------------------------------+ | // Larry Phillips | | \X/ lphillips@lpami.wimsey.bc.ca -or- uunet!van-bc!lpami!lphillips | | COMPUSERVE: 76703,4322 -or- 76703.4322@compuserve.com | +-----------------------------------------------------------------------+