Hitachi Unified Storage VM Product Overview Guide
2–4
Hardware overview
Controller chassis
The controller chassis (factory designation DKC) includes the logical
components, memory, disk drive interfaces, and host interfaces. It can be
expanded with a high degree of granularity to a system offering up to twice
the number of processors, cache capacity, host interfaces and disk storage
capacity. It is mounted at the bottom of the rack because it is heavier than
the drive boxes.
The following illustration shows the front and rear views of the controller
chassis.
Figure 2-2 HUS VM block module storage system components
Item Description Item Description
1 Controller Chassis 2 Dense Drive Box
3 Standard 2U SFF, LFF, or FMD
Drive Box