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- Newsgroups: comp.os.os2.misc
- Path: sparky!uunet!ukma!darwin.sura.net!convex!constellation!a.cs.okstate.edu!teague
- From: teague@a.cs.okstate.edu (Keith Teague)
- Subject: Strange Problem with ESDI and SCSI Drives Co-Resident
- Message-ID: <1992Nov12.025953.4559@a.cs.okstate.edu>
- Organization: Oklahoma State University
- Date: Thu, 12 Nov 92 02:59:53 GMT
- Lines: 33
-
- I have an UltraStor 12F ESDI controller with a Toshiba ESDI drive attached
- as my primary drive (C: and E: partitions; C is DOS FAT and E is OS/2
- HPFS). My secondary drive is a Toshiba SCSI-2 drive attached to a Future
- Domain 1680 SCSI controller (with a CD-ROM as well). I have an odd
- problem which I have noticed recently since I got my SCSI controller
- and drives.
-
- When I copy a LARGE number of files (>100 MB is common) from the ESDI
- drive to the SCSI drive using xcopy (directory, subdirectories and
- files) the copy operation will often hang. By this I mean the copy will
- simply stop. I am unable to ^c out of xcopy and if I try to shutdown
- the window will not die - I have to do a hard reset.
-
- Now the wierd part - If I open another os/2 window I can still access
- all the partitions on both ESDI and SCSI drives, even while the other
- window is dead with an xcopy in process!
-
- Further, if I begin another xcopy which involves the original partitions
- (for example from SCSI back to ESDI) the first xcopy will eventually
- come back to life and continue as though nothing ever happened!!!
- So far as I know, if I do not start another operation on the ESDI drive
- the first xcopy will stay dead forever.
-
- Does anybody have any ideas? I am running OS/2 beta on a 486/33 clone
- with 20MB of memory. I initially thought the bus speed (~11) MHz might
- have been too fast so I reduced it to about 8 MHZ. The problem persists.
-
- Could it be the ST506 driver? The SCSI (FD16-700.add) driver?
-
- Any help or suggestions will be appreciated.
-
- Keith Teague
-
-