| Title: | AMIGA NOTES |
| Notice: | Join us in the *NEW* conference - HYDRA::AMIGA_V2 |
| Moderator: | HYDRA::MOORE |
| Created: | Sat Apr 26 1986 |
| Last Modified: | Wed Feb 05 1992 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 5378 |
| Total number of notes: | 38326 |
I have a dilemma!!!
I have an A590 with a Seagate 325n 20 Meg scsi drive. I was having a
play today at getting geometry information from it. (just practising as
I am going to put an RZ23 on soon). I have the HDprep software from
Commodore on my A590, (came installed), and also on a floppy which came
with the A590.
When I use the prep software off the A590 and get it to retrieve the
disk information it comes back with 2 heads, 654 cylinders. When I use
the version on the floppy it comes back with 1 head 1308 cylinders.
Also the park cylinder is seen as 654 for the first instance and 1308
for the second!
The version on the floppy says it is V1.1 whereas the version on the
Hard disk doesn't say anything.
Which version should I trust. I am inclined toward 2 heads, 654
cylinders.
This also begs the question why am I getting two different results for
what should be the same SCSI command.
Thanx in advance,
Stuart
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 5080.1 | LOSPED::MCGHIE | Thank Heaven for small Murphys ! | Sat Sep 28 1991 02:22 | 9 | |
Just a guess, but if one version of the software says nothing about the
version it's probably 1.0.
I may be wrong of course.
You could try type filename opt h to see if there is any version
details in the first few bytes of the executables.
Mike
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| 5080.2 | 2*654 = 1*1308 | CRISTA::CAPRICCIO | Garth, take your Ritalin... | Sat Sep 28 1991 02:36 | 27 |
� When I use the prep software off the A590 and get it to retrieve the
� disk information it comes back with 2 heads, 654 cylinders. When I use
� the version on the floppy it comes back with 1 head 1308 cylinders.
According to what I've read elsewhere in this conference, the actual
breakdown of heads, cylinders, etc., is not important for a SCSI drive;
that is, providing it all "adds up": 2*654 = 1*1308.
� Also the park cylinder is seen as 654 for the first instance and 1308
� for the second!
I think most modern drives handle parking automatically on power-down,
so it shouldn't be a problem. I beleive the value for the park cylinder
defaults to the outer-most cylinder and should only matter for older
drives that don't automatically park the heads. Then, for the latter,
you can specify the "landing zone" which the "Park" utility would use.
� The version on the floppy says it is V1.1 whereas the version on the
� Hard disk doesn't say anything.
Can't help you on that one, but I'd compare the dates of the two
executables. One of the many here wiser than I probably knows, but if
not you could ask your dealer (or CBM directly).
Hope this helps,
Pete
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| 5080.3 | Thanks... | WOTVAX::HATTOS | I think, Therefore I'm paid less | Sat Sep 28 1991 13:53 | 7 |
Ta, every one.
I will go with the HD version... trying the RZ23 in a few minutes!!
Expect a new note!!!
Stuart
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