sjm@well.UUCP (Stephen Moehle) (11/26/89)
Help! I am very confused and completely at a loss. I am trying to get an
Imprimis 3.5 inch SCSI hard disk (I believe that the model name is "Swift"
and the number is I94351-160) to work with my A2090 controller. I am
using 1.3 Workbench (34.28) and Kickstart (34.5). Binddrivers works alright
and causes quite a bit of disk accesses. I mount RES2: using the mountlist:
RES2: Device = hddisk.device
Unit = 3
Flags = 0
Surfaces = 9
BlocksPerTrack = 30
Reserved = 0
Interleave = 0
LowCyl = 0 ; HighCyl = 1
Buffers = 5
BufMemType = 0
#
The mount succeeds. When I run prep, I tell it 9 surfaces, 30 blocks per
track, and 1072 cylinders. I tell it that I want my first partition to run
from cylinder 2 through 4 (I have also tried the entire disk.). I accept
the defaults for all else. When it begins the prep itself, the disk does
about two head movements, and then nothing else happens -- at least not for
half an hour. The disk is supposed to be 142 Mb, and I have tried many
variations on blocks per track, clyinders, and surfaces. Please help. I
have never had to deal with a SCSI drive, so feel free to point out what
should be obvious. Thanks.
Stephe
{ucbvax,pacbell,hplabs}!well!sjm or sjm@well.sf.ca.us
"You heard the weirdo man. What is truth?"lphillips@lpami.wimsey.bc.ca (Larry Phillips) (12/02/89)
In <24665@cup.portal.com>, Rick_R_Kitts@cup.portal.com writes: > Reduce the number of Surfaces to a maximum of 7. There is apparently a >limitation (bug?) in DOS which causes it to gag on larger values. You >will have to increase the BlocksPerTrack an appropriate value so you >can use the entire disk. Remember, SCSI accepts only block numbers, so >the driver will simply multiply the number of surfaces by the number >of blocks per track to get the entire size of the disk. I have run drives with 8 and 11 heads with no problem whatsoever, on both the 2090, and the 2090A. Currently I am running a 3.5" Maxtor LXT100 wirh 8 surfaces, and a Micropolis 1355 ESDI drive with 8 surfaces on the 2090A with it's ROMs removed. No problems with either one. -larry -- " All I ask of my body is that it carry around my head." - Thomas Alva Edison - +-----------------------------------------------------------------------+ | // Larry Phillips | | \X/ lphillips@lpami.wimsey.bc.ca -or- uunet!van-bc!lpami!lphillips | | COMPUSERVE: 76703,4322 -or- 76703.4322@compuserve.com | +-----------------------------------------------------------------------+
Rick_R_Kitts@cup.portal.com (12/03/89)
This has come up a few times before. Perhaps someone could put a note in intro to comp.sys.amiga? Reduce the number of Surfaces to a maximum of 7. There is apparently a limitation (bug?) in DOS which causes it to gag on larger values. You will have to increase the BlocksPerTrack an appropriate value so you can use the entire disk. Remember, SCSI accepts only block numbers, so the driver will simply multiply the number of surfaces by the number of blocks per track to get the entire size of the disk. Rick_R_Kitts@portal.cup.com rkitts@slacslc.BITNET