[comp.sys.mac.system] Help -- 3rd Party drive loses 20 MB on IIsi

hecht@unx.sas.com (Mike Hecht) (10/30/90)

I am posting the following for a friend. Please mail any responses to me
at hecht@unx.sas.com. Thanks!

====== Forwarded Message ======

I have a Mac IIsi 2/40 system, with an external Quantum 105 meg SCSI
drive, which is starting to have problems. The drive is third party, but
was initialized and custom partitioned with a tweaked copy of the Apple
HD SC utility, at a 1:1 interleave. It worked without any problems on my
old Mac Plus system, and *usually* works okay with the IIsi.

Twice, though, it has been trashed. The first time was after a crash in
ResEdit. When I rebooted, my root directory was empty, but claimed there
was 32 meg used on the disk. An opened folder from deeper down in the
directory tree was still fine (until I closed it) and visible. I tried
to look at the device using Disk First Aid and the HD SC utility, but
the basic concensus was that the partition map had been trashed. Time to
restore from backups. Two days later, I cancelled a particularly long
copy of a folder from a CD-ROM to the 100 meg HD, and lo and behold, a
100 meg partition had become an 80 meg partition. I even looked at it
under the HD SC utility again -- the last 20 meg had been tossed out of
the partition on the drive.

What's going on, and have you got any ideas about what I can do to stop
this nonsense?


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Michael Hecht                           Internet:    hecht@unx.sas.com
SAS Institute Inc.                      AppleLink:   SAS.HECHT