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I have a Drobo (regular... no 'S') and I just bought a new iMac 27" with a Firewire 800 port.

I can connect my Drobo to the iMac via USB 2.0 just fine works as intended. However, when I attempt to connect the Drobo via Firewire the Drobo is either non responsive or doesnt mount at all. Selecting it in the Finder just makes it beachball.

Is there anything I just check?

When I go to System Profiler > Hardware > Firewire I get the following message:

Warning:    Unable to list FireWire devices.
Maximum Speed:  Up to 800 Mb/sec

I have Drobo Dashboard installed and it detects the Drobo initially then when I attempt to browse the drive Drobo Dashboard says its not detected.

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Did you try Drobo support? – Moab May 30 '11 at 23:33

This was most certainly the cable. Took the cable back and got a new one... Works like a champ :)

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