[Adam1]

Hey Guys-

I have been trying to use a Powerbook G3, Wallstreet in SCSI Disk Mode connected to a Peforma 6400 so that I can do some major file transfers. Both at running MacOS 9. I have had so much trouble trying to get the SCSI Disk Mode to work. Here are the conditons:

The computers are connected with a SCSI cable, directly. There is nothing else on the chain except the internal CD drive.

If both are on, and I connect the PB to the SCSI cable, and I scan the bus from the 6400, the 6400 will not see the PB. If I try to scan the bus from the PB side, the PB will feeze about 10 seconds into the bus scan. If I unplug the SCSI cable after is has froze, it will un-freeze and pick up where it left off.

If both are connected, and I restart: The PB will pause for about 6 seconds on the grey startup screen (minus the mac icon) and start to boot. Meanwhile, the 6400 starts to boot as well. About 30 seconds into boot (with the splash), both machines will freeze. If I unplug the SCSI cable from the PB, the PB will continue where it left off. The 6400 is still frozen.

Two other things: The 6400's HD is ATA. The PB's HD is ATA. Everything should work. The SCSI Disk Mode control panel is set to a SCSI ID of 4. It doesn't matter which ID I set it to, it will still crash under the described circumstances.

Everything should work, but it doesn't. Am I missing somehting here?

Please help me figure this problem help. I know there are some smart people out there, so guys, kick in and help.

Thanks a lot,

Adam Attarian http://www.ipass.net/~adama/

[wlonh]

"so guys, kick in and help"... Hey Adam, aren't you forgetting Eve?

first, it's not a good idea to unplug/plugin a SCSI device from/to a powered-up Mac.

and see these Apple TIL articles for more info on SCSI disk mode:
http://til.info.apple.com/techinfo.nsf/artnum/n24903 http://til.info.apple.com/techinfo.nsf/artnum/n13611 http://til.info.apple.com/techinfo.nsf/artnum/n9387 http://til.info.apple.com/techinfo.nsf/artnum/n19088

[This message has been edited by wlonh (edited 12-05-1999).]

[schwei]

If you've understood the tech notes, you should have figured out that Powerbook SCSI disk mode won't work unless you have the right sort of SCSI cable plugged into the HDI-30 port.

On page 94 of my MacWarehouse catalog I find at the bottom:

ACC1369 and ACC1370

These are female-to-male HDI-30 adapters that have a switch on them: with the switch in one position the adapter enables the Powerbook's SCSI disk mode (a Mac better be at the other end of the SCSI cable attached to the adapter); in the other position the adapter switch serves to allow connection of other SCSI devices (CD-Rom devices, SCSI Zip/Jaz/ORB drives, even a scanner) with the same SCSI cable.

This is why the catalog describes them as "SCSI/Dock Adapter"(s). When a PowerBook is attached to another Mac in SCSI Disk Mode, it's considered "docked" to the other Mac.

Hope this helps, as we like to say.

schwei

[cfoster611]

It also sounds like you need some termination on your SCSI chain. I sometimes connect my PowerBook G3 to a PM 6100 or 8600, and I always have a pass-through termanitor before the PowerBook. The setup I like to use a APS SCSI Doc insted of Apples cables, becase it can switch between a regular PowerBook SCSI converter and a SCSI disk mode cable.
Walk over to your local Mac dealer and ask. If yor like me and your only local dealer is CompUSA, then callup MacMall or some other mgazone and ask for a Apple SCSI Pass-through terminator.