>>12181033 (PB)

Need to correct some bad information - that's NOT a RAID. (or not simply RAID)

It's a SAN - Storage Area Network. it's the standard network storage device now for a multitude of reasons - and quite pricy - offering the highest level of both performance and redundancy.

Note each drive bay is a 1TB drive.

Looks to be a 3TB SAN appliance and that 3 TB can be allocated to any number of 'drives' which then can be sub-allocated off as virtual machine servers, each with a multitude of drives - all hosted by that SAN.

The vertically placed devices are very likely physical 'blade' servers.

The top device is a gigabit switch.