871579l@aucs.uucp (Todd Lowe) (01/18/90)
In Article: 33076 of comp.sys.amiga Jason Chung writes: > I have just recently purchased the Trumpcard 500 and I have a few > questions and answers for anybody interested. > > After formatting and setting my ST-157N-1 into two partitions, I got >a total formatted space of 45.8 meg. Someone mentioned of a way to increase >this and I was wondering how it is done. > Second, the interleave was supposed to be set at 3:1 in the default >parameters of the TCUTILS program but someone on PLink mentioned that a >setting of 2:1 increased his access time significantly. I followed suit >and was wondering if it really does help. Here are some answers : Jason was wondering about interleave. I changed mine to 1:1 and found a *** small *** increase in performance, but I started getting random read/ write errors so I changed it back. I have been told that the errors could be the controller not being fast enough for the ST-157N-1 in that interleave. I don't know, but setting it back fixed my problem. About storage space. I have 47.1 Megs, here's how. 1 - Find the file DEVS/IVS_SCSI.DRIVES 2 - Find the section headed ST157N 3 - Modify it as follows : >other drive definitions here< -ST157N .Format 04 00 00 00 0E 00 .InterleavePosition 4 .Interleave 14 <- this is interleave for OFS. .FFSInterleave 3 <- change this to 1 or 2 to try a .RequestSenseCmd 03 00 00 00 1B 00 faster interleave with FFS. .ParkCmd 1B 00 00 00 00 00 .CAPACITY 94860 <- change this from what ever to 94860. .FirstCylinder 02 .Cylinders 607 <- change this from 599(?) to 607. .Heads 6 .BlocksPerTrack 26 .BlockSize 512 .BBScanType 1 .Flags 0 # >other drive definitions continue< 4 - REINSTALL your hard drive. Low level format, add to mountlist, everything **EXCEPT** AmigaDos Format. 5 - I had problems with IVS formatting after my modifications, but mount any partitions (LOW LEVEL FORMATED ONLY) and then use the standard FORMAT (v1.3 or 1.3.2) with the FFS option on each partition. 6 - Now if you didn't write startup information to the drive do so. (Remember to only write the info for your boot partition.) 7 - Type INFO to verify the drive size. With only two partitions this should be 47.1 Meg. With only one partition it should be close to or better than 48 Meg. (Which is good considering its only 49Meg(?) unformatted.) 8 - Reload your software and your ready to fly. //| Todd Lowe | //_| Acadia U. | 871579l@aucs \X/ | Wolfville NS |
jhc00614@uxa.cso.uiuc.edu (01/20/90)
Sorry, I tried to respond but I was too unfamiliar with the vi editor
at the time. Thanks for the help. I am saving your message into buffer
to use when I reformat the drive. At present, since only 30% of the drive
is filled, I guess I'll wait till I start to run out of room to start
implementing your procedure. Thanks again.
Oh yeah, in case you didn't read the latest message on the Meta 4
ram expansion, the 1M and 2M configurations are the opposite of what they
should be. It should be: SZSEL0 SZSEL1
OFF ON 1M
ON OFF 2M
512k and 4 meg. are fine.
Later