Amiga Active list (801/1044)

From:Oliver Roberts
Date:26 Sep 2001 at 00:34:01
Subject:Re: [amigactive] 40Gig hard disk

Hi Neil,

On 25-Sep-01 23:36:52 BST, Neil Bothwick wrote:

> Oliver Roberts said,

>> I would strongly advise against using partition sizes bigger than 4Gb in
>> size with PFS3 (that's available file space, so about 4.4Gb-ish in
>> HDToolBox). Why? Well, I located a bug in PFS3 a while back, which
>> makes it impossible to format a partition bigger than 4Gb when using
>> debug tools - these show illegal read/writes to memory. Sure, there are
>> usually no such problems without using debug tools, and formats work ok,
>> but I find it highly suspicious that the format would have involved
>> reading random data from memory that it is not supposed to.

> I've recently formatted some partitions >4GB, with CyberGuard running,
> and not had any hits. The 6GB partition has been filled and emptied a

Ok... I may have been skimping on information there - I had mungwall
and some other debug stuff running too.

> couple of times in the past few weeks with no apparent problems. This is
> on an IDE drive connected ot the stock IDE port, so I had to use the
> direct SCSI version. With an 18GB drive connected ot my CSPPC I used the
> normal version and still ran 4 and 6GB partitions OK.

Strange. The problems I had were with an IDE drive - I tried every
possible software combination (e.g. direct SCSI with the OS3.9
scsi.device, direct+normal with the idefix scsi.device, etc) and the result
was always the same. I even tried it after booting with no
startup-sequence. I have also heard from others who have had problems
getting >4Gb PFS3 partitions formatted. All I know for sure is that the
hits definitely came from within the PFS3 code.



*Oliver Roberts* - software developer & web designer
http://www.oliver-roberts.co.uk/ - ICQ: 34640231
/oliver@futaura.co.uk/ | /oliver.roberts@iname.com/


Amiga Formula One site ==> http://www.nanunanu.org/~oliver/AmigaF1.html


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