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Message

Re: HD capacity

2007-10-06 by esynthesist

EmaxII can certainly access more than 540 MB of hard disk space.
In fact the EMAX-II file access table of harddisks and CDs can handle 
almost any size. 
Of course any space more than 850 MB wouldn't make a lot of sense 
since a total of 100 banks (of max 8MB each) + some index data is the 
max. useful space for any EMAX-II.
However it seems that the physical format procedure built in the Emax-
II OS is limited in its physical access, i.e. when the disk is too 
large the EMAX-II can't get an estimate of the physical disk space 
and hence it does not succeed in formatting the disk. That's a shame 
really, because for sure the logical disk layout and file access 
table have been designed for larger disks.
In practice it seems that drives > 1GB cause problems on Emax-II, 
probably because the OS didn't think that such drives would ever 
exist :-)
Anyway, I have an EMAX-II CD-ROM here which is logically formatted 
for 632 MB and the EMAX-II is perfectly able to access this space 
completely.
(You can try yourself by making a 632 MB CD-ROM image with EMXP and 
filling it with > 70 banks of 8MB).
Note also that the Emulator-III uses the exact same disk layout 
scheme as the EMAX-II; the EmuIII can access even larger sizes... If 
I remember well I've heard of someone using Iomega Jaz 2GB disks on 
his EmuIII. But of course the EmuIII OS is not the same as the Emax-
II OS...

///E-Synthesist

--- In emax@yahoogroups.com, "Tristan Upton" <tu@...> wrote:
>
> Hi John, 
> 
> Have you managed to actually fill the drive though? I remember 
reading some 
> time back that although the Emax II could save 100 banks, with up 
to 8MB per 
> bank, the total that could be stored on one hard disk was limited 
to 540MB 
> total. It may well be that a drive of over 540MB in size can be 
formatted 
> but will it all be usable. Maybe you could try and see? 
> 
> Regards, 
> 
> Tristan 
> 
> Saturday, October 6, 2007, 4:48:01 PM, you wrote: 
> 
> >
> Thanks Tristan. The flash drive is a great idea and one I hadn't
> thought of. As I said, I have a 700Mb HD in my Emax II now and it is
> perfectly happy so 540 would not seem to be the limit. Thanks again
> JW
>

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