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External Firewire Drive Enclosure
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Dedicated MacNNer
Join Date: Feb 2001
Location: W/DC
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I have an external Firewire drive enclosure with a 30 GB hard drive in it. I have a new 120 GB drive I'd like to use with it as well. It's a generic enclosure.
If I splice an extra drive power plug (standard Red, Black, Black, Yellow 4 wire) coming off of it (it has a pigtail coming out of the existing plug with a small plug) and put in a 2 drive ribbon cable, will I be able to run both drives off of the same enclosure?
I'd hate to have to drop the cash on another external enclosure, but don't know if this one I have can handle both drives. Any thoughts or advice would be greatly appreciated.
-atomium
edit: Feel free to kick this over to Peripherals if you think it belongs there. I put it here in hopes of tapping into some more technical expertise.
(Last edited by atomium; Aug 28, 2002 at 03:17 PM.
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Mac Enthusiast
Join Date: Sep 2000
Location: Silicon Valley The home of empty office buildings
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I don't think you can do that with a Firewire enclosure.
Does FireWire support Master/Slave????
Maybe you could look inside a FireWire Raid box to see how it is done.
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Forum Regular
Join Date: Apr 2002
Location: England
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I think the Oxford chipset bridge at least supports 2 devices.
My concern would be if the enclosure can supply enough power to run 2 drives, if it's bus powered I'd have to advise against it, if it's self powered then it could be a case of suck it and see, it'll probably work, but you might be unlucky.
If you're cheap like me, and the unit is bus powered, buy an old SCSI enclosure with PSU, they're cheap these days, and put the bridge into it, then use the SCSI box PSU to power the drives.
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Secret
4 Macs, 6 Amigas, 3 SparcStations, an Atari ST, an Acorn, and N+1 PCs.
I'm such a geek.
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Dedicated MacNNer
Join Date: Feb 2001
Location: W/DC
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Originally posted by Secret Vampire:
I think the Oxford chipset bridge at least supports 2 devices.
My concern would be if the enclosure can supply enough power to run 2 drives, if it's bus powered I'd have to advise against it, if it's self powered then it could be a case of suck it and see, it'll probably work, but you might be unlucky.
If you're cheap like me, and the unit is bus powered, buy an old SCSI enclosure with PSU, they're cheap these days, and put the bridge into it, then use the SCSI box PSU to power the drives.
OK. The latest. The chipset does handle two devices. Hooking up a dual IDE ribbon in the enclosure lets me use both drives. Took a while of tinkering with the Western Digital "Master/Single Drive" glitch and many jumper setting combinations before I got it right. Thanks to xlr8yourmac.com, I got it figured out.
This was using the power from the enclosure that houses my CD burner for the second drive. I guess I'm too chicken to splice the power and try two off of one on the hard drive enclosure. If I could figure out how hefty the powersource is, I'd be more comfortable, but I can't seem to find the specs anywhere.
I like the idea of buying an old dual drive case and transferring the chipset. I'll check around for one and see what I can come up with. I really hate having an extra 30 GB drive sitting around unused, but not as much as I hate the idea of frying my enclosure...
Thanks much.
-atomium
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