kaleb@mars.jpl.nasa.gov (Kaleb Keithley) (01/11/90)
This just came up recently, I know, but now it's happened to me, and since I
wasn't paying attention before, would some kind soul summarize to the net, or
send me email.
here's the particulars:
DOS 4.01
1 meg DOS partition on drive 1.
103 meg U*IX partition on drive 1.
64 meg DOS partition on drive 2.
I Fastback restored a 3700000 text file from floppy to D:
used V. Buerg's List 7.1a to split the file into 4 pieces.
(1 original + 4 pieces, 7+ megs total)
copied the four pieces to four floppies.
deleted the four pieces.
entered 'DIR', which output the directory, then paused to calculate disk free
space.
Then, both drive 1 and drive 2 access lights lit up, and flashed in unison for
about five seconds.
fdisked to set unix partition to boot, rebooted, logged in as root and ran
fsck, which reported a dozen or so files trashed.
Any thoughts?
Chewey, get us outta here!
kaleb@mars.jpl.nasa.gov (818)354-8771
Kaleb Keithleypipkins@qmsseq.imagen.com (Jeff Pipkins) (01/12/90)
In article <2553@jato.Jpl.Nasa.Gov> kaleb@mars.jpl.nasa.gov (Kaleb Keithley) writes: > >Then, both drive 1 and drive 2 access lights lit up, and flashed in unison for >about five seconds. As I [mis]understand it, this is NEVER supposed to happen, unless you have a really fancy hard disk controller with multiprocessing capabilities that can access two disks at once. Sounds to me like you have a drive address conflict. Some of the ribbon cables have a portion of them twisted to change the effective address. In this case, the DIP-switches on both drives should be set to the same physical disk address. If your ribbon cable (the wide one going to both disk drives) does not have this twist in it, you must either put it in there, or change the physical address of one of the drives by setting a DIP-switch or jumper. Warning: I HAVE been wrong before... Good luck!