tenny@ootool.dec.com (Dave Tenny) (06/27/91)
I have the DIT CubeFloppy 2.9 external floppy drive. I've noticed that whenever I use it, in any way, that my system response is thouroughly degraded. I don't care about the overall speed of floppy data transfer. It's fine. But when the floppy is being used, my 68040 system acts more sluggish than my 68000 based computer next to it. It's so slow it's hard to edit. Emacs takes forever to fire up, and things like key repeat are very slow. This problem doesn't happy when the OD or hard disk are being utilized. Is the problem from: a) my floppy drive? b) my SCSI controller? c) other Dave
simsong@NeXTWORLD.COM (Simson Garfinkel) (06/29/91)
In article <1991Jun27.124814.28771@engage.pko.dec.com> tenny@ootool.dec.com (Dave Tenny) writes: > >I have the DIT CubeFloppy 2.9 external floppy drive. >I've noticed that whenever I use it, in any way, that my system >response is thouroughly degraded. I don't care about the overall >speed of floppy data transfer. It's fine. But when the floppy is being >used, my 68040 system acts more sluggish than my 68000 based computer >next to it. It's so slow it's hard to edit. Emacs takes forever to >fire up, and things like key repeat are very slow. > When you use the external floppy drive, you are using the SCSI bus. As long as you are transfering data to or from the external drive, the SCSI bus can't be used to access your hard disk. This is probably a problem with the SCSI implementation on the floppy disk drive. Of course, I could be wrong, since I don't have an SCSI bus analyizer. But this certainly sounds like what the problem is. -- .................................................................simson