From: kimba@gnh-cathouse.cts.com (Kim Brennan)
Newsgroups: comp.sys.apple2
Subject: Re: System 6 and Ramdisks
Date: 9 Apr 92 08:30:58 GMT
Organization: The Internet
X-Unparsable-Date: Tue Apr 07 92 at 11:58:09 (EST)

> From: kiszkaw@woods.ulowell.edu
> 		Is there a maximum Ramdisk which can be set on System 6?
> I have no problem with one < 512K (All Ndas, Cdevs, etc. can be loaded and
> I'll still get a Ramdisk), but when I stepped up to 768K (Haven't yet tried
> anything in between), the finder itself wouldn't even boot up without
> pressing shift during startup.  (BTW, when it did boot, I _did_ have a 768K
> ramdisk).  1024K won't work at all.  The thermometer just stops after moving
> about 1/16th of the way across.  I'll hold off posting my system config. just
> in case this is a  standard software limitation.

There is no limitation in System 6.0 that I know of. I WAS running with a 2
Meg ramdisk (got rid of cause I wanted more memory for Pointless).
 
You should have said what your memory situation was at least. I'm running
6.25Megs (of Memory) and am VERY happy I have it.
              -=> Message from Kim Brennan <=-
                (kimba@gnh-cathouse.cts.com)
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>From pro-haven!gnh-cathouse!kimba Wed Apr  8 03:03:14 1992
Received: by pro-haven.cts.com (sendmail 2.1 12sep91)
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From: kimba@gnh-cathouse.cts.com (Kim Brennan)
To: trentc@pro-calgary.cts.com (Trent Corney)
Ppath: pro-nbs!pnet01!crash!apple.com!info-apple
Date: Tue Apr 07 92 at 12:21:02 (EST)
Ppath: pro-nbs!pnet01!crash!apple.com!info-apple
Subject: Re: SyQuest Cartridges Readable?

> From: trentc@pro-calgary.cts.com (Trent Corney)
> In <Z0q8HB3w162w@micor.ocunix.on.ca> toh@micor.ocunix.on.ca (Marc Sira)
> writes: 
> >Once again, the limitation is not in the RamFAST, it's only in the utility 
> >program that comes on the built-in ROMdisk. If you use some other partition 
> >creator (I have to assume that System 6 includes a minimal one) you can use 
> >the RamFAST quite happily with any partition size you like (up to the 9 
> >billion gigabyte or whatever HFS limit).
> Only in the utility program eh? Not from what I have seen. I have a Ramfast
> rev D with ROMs 2.01e on it. I have a SyQuest removable hooked to. I got
> System 6, installed it and ran Apple's Advanced Utilities that came with
> it. I tried to partition a cartridge to a 44 MB HFS partition. It said it
> worked, but once I got back to the Finder and did an about on it, all I had
> was a 32 MB volume. I seem to be missing a mere 12 MB.
> The Ramfast has problems.

Trent you are correct (mostly) and Marc is wrong. Even with the 2.01e ROMS the
RamFAST will NOT create a HFS Partition larger than 32Megs...WHY? Cause those
ROMS only allowed the RamFAST to make partitions with creator of ProDOS. 
 
CVTech is selling the 3.0 Roms for $15. These ROMS will allow you to make
partitions of creator HFS, hence you will be able to make partitions larger
than 32 Megs with them. Drew wouldn't let those ROMS out until System 6.0 was
shipping. However, it's all done now. 
 
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                (kimba@gnh-cathouse.cts.com)
   {Cathouse BBS (301) 840-8567 3/12/24/9600 V.32 24 hours}