Firewire pci card and scsi disk mode query

[beachycove]

Installation of a firewire pci card in a pci mac (G3 AIO) appears to have disabled its capacity to connect to a powerbook in scsi disk mode. Both machines are running 9.2. The powerbook starts up properly, with the icon, but the pci mac does not see it.

Is this a documented "feature" or merely a fluke?

 

[Anonymous Freak]

So to understand, you are using an older PowerBook that has SCSI, not FireWire.

You can boot the PowerBook into SCSI Disk Mode just fine.

When the desktop computer does not have a FireWire card, it mounts the PowerBook just fine.

When the desktop computer does have a FireWire card, it does not mount the PowerBook. Is this correct?

Have you tried the FireWire card in different PCI slots? Have you tried other SCSI devices to make sure that the desktop will mount SOMETHING when the FireWire card is in?

And, just to make sure... Do you have the PowerBook started up in SCSI Disk mode, and plugged in to the desktop, before starting up the desktop? (I've seen cases where people forgot that SCSI had to be plugged in before turning power on because they're so used to USB and FireWire now.)

 

[beachycove]

Yes, yes, I did know roughly what I was doing.... Been doing this stuff since 1991.

It appears to be a scsi termination problem, though what problem precisely I have not yet determined — I have yet to complete the complete scsi voodoo ritual. I have, however, found just today that the unit will not recognize any (internal) scsi device on the scsi bus with my Wallstreet powerbook connected in scsi disk mode. Once the pb is disconnected, however, the internal device, which in this case is a newly installed zip drive, shows right up.

It may be some peculiarity with the G3AIO, or indeed with the Wallstreet, but on the basis of this, I'm sure I can get to the bottom of it eventually. My original query was basically whether installation of a firewire device effectively disables scsi disk mode in favour of a similar connection via firewire. It seems not.