In article ,
Toddhome wrote:
> On Jul 10, 6:37 am, wrote:
> > Hi all,
> >
> > I curently own a G4 PowerbBook (OS 10.4.10) and just bought a G5 Mac
> > Pro (OS 10.4.10). I also have a Macpower IceCube 3.5" 320GB HD with 2
> > S400 Firewire ports.
> >
> > Currently the Ex HD has no problems showing up on my PowerBook (as it
> > always has). But when connected to both machines it will only show up
> > on one or the other (depending on which machine detects it first).
> > I've called Apple Support, but the only thing they could suggest doing
> > was reformatting the Ex HD from a FAT 32 file system to Mac Extended
> > (Journaled) file system. So I tried that, and still no luck - then
> > they suggested it must be an issue with the thrid party product seeing
> > that both machines can physically recognise the drive. And from what I
> > can telll MacPower doesnt have any support relating to this particular
> > drive.
> >
> > Looking in System profiler on both machines - They both claim to have
> > an OXFORD IDE Device which I can only assume is the HD.
> >
> > Does anyone know whats going on or how I can fix this? I figure if
> > there are 2 firewire ports, I should be able to share the drive on 2
> > machines... correct?
Wrong. While connecting multiple computers together won't hurt the
hardware, the operating system doesn't support sharing devices at this
level. It would complicate the OS and few people would ever need it.
It's much simpler to network the computers together and share the disks
that way.
It is possible to network the two computers together using FireWire and
share the disk that way. It should be faster than 100BaseTX but not a
lot faster since the disk is on the same Firewire.
I don't know how the computers decide who has access to the HD. It's
likely first come first serve.
The point of 2 firewire ports is to allow you to daisy chain another
firewire device, HD, CD-ROM, etc.
Higher end video hardware uses Firewire to link equipment together and
as far as I know that includes having multiple devices accessing
harddrives. But this equipment is designed for multiple masters.
>
> You WILL burn your firewire ports out on one machine or another if you
> continue this!
>
Nope. Both Target Disk mode and Firewire networking involve multiple
computers connected via Firewire. Try a google search on "firewire
multiple computers".
> Please only one,(1) CPU at a time connected to **up-to** 63 firewire
> devices.
>
> T.
--
Clark Martin
Redwood City, CA, USA Macintosh / Internet Consulting
"I'm a designated driver on the Information Super Highway"
>> Stay informed about: External HD only showing on one Mac 
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