"JIM HOLSONBACK" wrote to "MIKE ROSS" (08 Jan 03  00:11:00)
 --- on the topic of "ll format ?"

 JH> Hello, Mike.

 -=> MIKE ROSS wrote to MATT MC_CARTHY <=-
 MR>  it is in fact a Micropolis 1558-15, with 18ms step rate.

 JH> My old book by Scott Mueller (Sixth Edition, 1996)doesn't have the -15
 JH> model listed, but it has Micropolis 1558 at 1223-15-34 (319MB).  This
 JH> is vice your label's 1224-15-36.  I just worked with a few ESDI's and
 JH> that was some years back, but seems I vaguely remember their being
 JH> formatted to 34 vs 36 SPT so the extra 2 sectors could be used for
 JH> some function - - maybe mapping out bad sectors.

The -15 is a different (aka later) model than the "none -15". The 34 vs
36 sectors is an interesting idea but the label also has a BFI table to
map the defects. If it was as you suggest then there would be no need
for a BFI map, I think?


 JH> Sometimes BIOS SETUP will let you enter a value in the User-Defined
 JH> CHS parameters which it will not support.  So maybe your machine's bios
 JH> would accept 1224, but only format the first 1024.

I formatted the ll with the hdc's bios. However it was FDISK'd with dos
5.0 which has the C-1024 limit. I'm thinking dos 6.22 sees the 270M
number originally put in the 90M active partition by dos 5.0 and decides
there's only 180M left for the extended partition. I'll have to reformat
and then FDISK with 6.22 to be sure.


 JH> Seems like it is only LLF'd to 283/270MB now.  If FDISK confirms
 JH> this, maybe the HDC BIOS can accept more than 1024 cyls and you can
 JH> LLF it to get over the 300 MB mark.

There's no doubt the hdc bios sees more than 1024. I'm pretty sure it is
fully fomatted but that's the next thing I'll retry.


 JH> Good luck - - -  JimH.

Thanks!

 Mike
 ****

... If you hold a hard drive to your ear, you can hear the C:
--- Blue Wave/DOS v2.30