On Dec 18, 2004, at 3:19 PM, Anthony Minchinton wrote:
Hi Sam,
the 128 GB Hard Drive limit is well known to pc users as a BIOS issue,
which I presume is the same for macs, based on the previous hard drive
size limitations experienced by both pc & mac users.
Regards Tony.
Are you asking a question in regards to a particular computer system or
OS release?
The limitation comes mainly from, at least in the Mac world,
non-support for 48 bit LBAs (logical block addresses) in the disk drive
controller and/or the ATAPI bus controller (or its firmware) used on a
particular system. All mac systems made since late 2000 or early 2001
should have hardware support for drives greater then 128GB/130GB
(depending on units being used) when attached via ATAPI buses (note
firewire interfaces, etc. never had this particular limitation).
Also Mac OS X (Darwin) system supports very very large disks (and I
believe it always has). Also the HFS+ file system that Mac OS X uses
(Mac OS 8 & 9 used it as well by default IRCC) supports huge volumes as
well... as default configured 64 TB in size I believe
(<http://developer.apple.com/technotes/tn/tn1150.html>).
