Oh, I forgot…

----------  Original message  ----------
Subject: Re: G4 Disk Capacity Limit - Real or Logical?
Date:    Sonntag 29 August 2010N
From:    Bill Christensen <[email protected]>
To:      [email protected]

> I'm looking at the specs on a Gig Ethernet on Everymac.com and it
> appears that it has an ATA-5 and an ATA-3 for the optical drive. (
> see
> <http://www.everymac.com/systems/apple/powermac_g4/stats/powermac_g4_500_dp
> .html>)

ATA-1 through ATA-8 is a standard for the ATA bus. E.g. ATA-6 (revision 6 of 
the ATA standard) is also called Ultra-ATA/133.

For more information you can visit Wikipedia: 
http://en.wikipedia.org/wiki/Parallel_ATA#Features_introduced_with_each_ATA_revision

This is what what you can see at the everymac.com specs page.


The names used in Open Firmware for the device paths don't necessarilly 
correlate with the used ATA standard revision. If you had two buses, both 
ATA-5 Standard (i.e. Ultra-ATA/100), what would be their names in Open 
Firmware so the buses can be distinguished?
So, the Open Firmware names are:

ATA-3 is used for the second (most of the times slower) bus for the optical 
drive and the ZIP drive/floppy drive.

ATA-4 is used for the primary hard disk drives bus.

I believe these names are used for all Power Macs, regardless which ATA 
procotol version they are providing.
Even my G3 B&W (not even a Keylargo IDE chip and thus no LBA-48 support) has 
these namings in Open Firmware.


Anyway, please check in your Open Firmware for the correct names.


Cheers,
Andreas  aka  Mac User #330250

-- 
You received this message because you are a member of G-Group, a group for 
those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs.
The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette 
guide is at http://www.lowendmac.com/lists/netiquette.shtml
To post to this group, send email to [email protected]
For more options, visit this group at http://groups.google.com/group/g3-5-list

Reply via email to