paul@tech1.uucp (Paul Wood) (09/25/90)
I hope someone can help me with a harddisk problem I have. I have one of the
original Mac's, now upgraded to a 1MB MacPlus, and a 21MB Qisk harddisk (a
Rodime I think)
During a backup of my harddisk, HFS Backup (2.0) failed to read one of my files
(after 80% of the backup had be done naturally!). I investigated and found
that:
I could NOT duplicate the file using the "file" menu's "duplicate"
option (Finder 6.0b5, System (4.2a3)
but:
I could execute the file (the file was ResEdit)
I could StuffIt (1.20) into an archive
I could read it with FEdit (1.0.7)
The file-duplicate issued the message 'The file "ResEdit" couldn't be written
and was skipped (disk error) <Cancel> <Continue>' and the system hangs (mouse
frozen, keyboard inactive).
I removed some unnecessary stuff from the harddisk and successfully made a
backup, then I started investigating. I used Disk Express (1.06) to clean up and
reorganise the disk, created more data on the disk and looked for files that
could not be duplicated. This time the problem was a text file, but I could edit
the file, StuffIt still worked, and I could still read it with FEdit. Mmmmmmmmm!
I did notice that there was a discernible "plonk" from the harddisk when FEdit
read the file, and further investigations with FEdit reading the volume I found
two areas of the disk which "plonk", sectors 1122-1155 and 37422-37455. The
second of these areas were always associated with the faulty files (I tried
various combinations of files).
I don't think that the problem is associated with writing the file, I think it
is when I read the file. Don't forget the problem first arose when backing up
the harddisk. Also FEdit could find only one copy of the file on the disk (at,
or around sector 37422-37455). Further I could create new files (with a editor
etc.).
Erasing, reformatting and certifying the disk has made no difference. Disk
Express can't find any fault. Are there any other utilities that would be of any
use? Has anyone had similar problems? Has anyone got an idea? Help!
Paul Wood | UUCP Mail: paul@ukpoit.co.uk | iT: The Information
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