At last check the i6000 doesn't boot with other controllers installed. The next steps will be to monitor the serial output during a normal boot and then compare that with other line card boots.
The i6000 arrived yesterday. It's unpacked, off the skid, and in the garage. After putting a few bolts back in (holds the two chassis together) and bolting a few other things back on it's powering up and robotics are on. It shows as online.
However the drives aren't showing up. The UI indicates a few issues probably related to the CAN bus. That all seems connected though. So I'm not sure what's up right now.
If you're using a Quantum, Dell, or ADIC Scalar product you should check to see if the password of the GUI's 'service' account is static. If it is then there is a pretty trivial way to get into the system using the vendor's maintenance account. The one system I have access to, an i2000, has a login of service:10101100.
If you're using a Quantum, Dell, or ADIC Scalar product you need to make sure the 'service port' isn't remotely accessible. If it is then there is a pretty trivial way to get into the system as 'root'. The port is explicitly listed in the manual as not for "normal" use.
tl;dr If you aren't plugging in stuff you shouldn't (per manual) then the risk isn't that bad.