I’ve recently bought a 2nd generation Drobo. It’s a cool little box that attaches to my Mac Pro via Firewire 800.

I had some drives from my failing ReadyNAS 600 (now retired), so after temporarily copying the data to a non-resilient drive I loaded the following in the the Drobo and copied the data onto it.

Slot 0: 1TB Hitachi HUA721010KLA330
Slot 1: 1TB Hitachi HUA721010KLA330
Slot 2: Seagate 750GB ST3750640NS
Slot 3: Seagate 750GB ST3750640NS

These are good quality SATA 3.0 Gbit/s drives that I even ran through SpinRite (highly recommended) to check for errors.

Anyway, I’ve discovered that when I unlock my Mac Pro (the screensaver automatically locks after a while, but I don’t put it to sleep), the Drobo restarts. No warning, just a whirring reboot. I’m running the 1.2.2 firmware and the 1.2.1 dashboard. I’ve tried plugging it into another Firewire port and also unplugging my other Firewire devices with no luck.

I’ve logged a support ticket with Drobo, let’s see what they come up with.