Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!purdue!haven!aplcen!jhunix!c08_d102
From: c08_d102@jhunix.HCF.JHU.EDU (Stdnt102)
Newsgroups: comp.sys.atari.st
Subject: Re: I love it!
Summary: 11 sectors is not a good idea; TWISTER is okay
Keywords: disk formats TWISTER
Message-ID: <611@jhunix.HCF.JHU.EDU>
Date: 31 Jan 89 02:01:33 GMT
References: <7367@xanth.cs.odu.edu> <11830032@hpldola.HP.COM> <7436@xanth.cs.odu.edu>
Reply-To: c08_d102@jhunix.UUCP (Jared J. Brennan)
Organization: The Johns Hopkins University - HCF
Lines: 32

In <7436@xanth.cs.odu.edu> scott@cs.odu.edu (Scott Yelich) writes:
>In <11830032@hpldola.HP.COM> ritchie@hpldola.HP.COM (Dave Ritchie) writes:
>>  These are 2 seperate problems. The use of tracks > 80 is dependent upon
>>the particular drive mechanism used - some will tolerate stepping past
>>track 80, some won't. The use of sectors > 9 per track is dependent upon
>>the rotational speed of the particular drive - 9 works best between different
>>computers, 10 will work with most, 11 will work with drives that are slower
>>than the standard 300 RPM (slower -> more time under head -> more time
>>for FDC chip to convert). [etc]
>>					dave
>
>My drive formatted and used 11/82.  Once and a while when doing a lot
>of reads-- the drive would make a clanking noise...  That's when I decided
>that 82 was too much..  I still used 11/81.
>   Scott D. Yelich                           scott@cs.odu.edu  [128.82.8.1] 

   The problem is probably the 11 sectors.  ST drives vary enough (as far as
the rotation rates go) that 11 sectors probably is beyond most of them.  Many
of the newer drives are also unable to read past 80 or 82 tracks, but this
doesn't sound like it's a problem for yours (this is a FEATURE of these drives;
it can't be changed, as far as I know, so you're lucky).  The rotation rate
can be changed, although I don't know exactly what to do.

   Don't worry about the TWISTER format.  This has been incorporated into
the Mega ROMs (TOS 1.2, as opposed to the TOS 1.4 which so many of us are
waiting for...).  The "Format" feature on the "File" menu allows (maybe it
forces you; I don't know) twisting the tracks.

--
Jared J. Brennan		I wish I'd remembered to copy my .signature
c08_d102@jhunix.BITNET		from my other account.  The hologram was
ins_bjjb@jhunix.BITNET		astounding . . .