zubrow+@andrew.cmu.edu (David Zubrow) (07/26/90)
Try running a file defragmentation program like Disk Express. This ersolved a similar problem for us.
jyp@wucs1.wustl.edu (Jerome Yvon Plun) (07/26/90)
In article <3022@medusa.informatik.uni-erlangen.de> wgstuken@medusa.informatik.uni-erlangen.de (Wolfgang Stukenbrock ) writes: >bhatlas@pyrite.SOM.CWRU.Edu (Sunil Bhatla) writes: > > >>The last thing I need is a shrinking hard disk... > >>My 80 Mb internal hard drive (on a Mac IIx) shows: > >> "66,137K in disk 12,600K free" > >>But when I catalog all the files (including the desktop) >>I can only account for 56 Mb. I tried Redux and a couple of >>disk cataloguing programs, and they all tell me the same thing. > >>Someone suggested I zap the PRAM, but that didn't help. > >>Where is the additional 12 Mb? HELP!! > >A suggestion: > >Perhaps the 12Mb are hidden files> > >Wolfgang > >wgstuken@immd4.informatik.uni-erlangen.de We had the same problem after optimizing an 80 Mb hard drive with DiskExpress. The desktop was showing ~ 60Mb full while only a third of the drive was actually used. The only solution we had was to restore the drive to its state before optimization. Jerome jyp@wucs1.wustl.edu
SKG102@psuvm.psu.edu (07/27/90)
I had a similar problem when someone unpluuged my Mac during a multiple file
transfer. I was downloading 2 Megs. of files when the machine was unplugged
and it was almost finished. Anyway, when the Mac was restarted the finder
showed only 2 Megs. of space left on the hard disk, which is about what should
have been left had the transfer completed but none of the files that I
downloaded were anywhere to be found on the disk. I believe the problem is that
the volume bitmap which shows which sectors are used and which are not is
updated at the same time the sector is used but the directory is only updated
at certain times, like the way a file may not be completely written to disk
until certain routines are called. I had 2 Megs. of disk space missing.
What I did was this. I have a tape backup so I made a total backup of the disk.
I didn't pay much attention to the file sizes during the backup. After the
backup completed, I reformatted the disk and restored all the files. After the
restoration was complete I had over 10 Megs. of free space on the hard disk.
Not only did I get the 2 Megs. I knew I was missing plus another 6 I didn't.
I know do this about once a month to keep from losing the space and to keep
fragmentation down
Scott George
SKG102@psuvm.psu.edu
SKG102@psuvm.BITNET