Hitachi Virtual Storage Platform - Page 15

Introduction
1–3
Hitachi VSP User and Reference Guide
storage system with homogeneous logic control, cache, and front end and
back end interfaces, all mounted in standard Hitachi Data Systems 19-inch
racks.
A basic Virtual Storage Platform storage system consists of a controller
chassis and one or more drive chassis that contain the data drives. The
system includes a control rack (Rack-00) that contains a controller chassis,
and may be either diskless (no drive chassis) or may contain one or two
drive chassis in the same rack. Each drive chassis can contain one of three
drive types: SFF HDDs or SSDs, LFF HDDs or SSDs, or Flash Module drives.
The controller chassis contains the control logic, processors, memory, and
interfaces to the drive chassis and the host servers. A drive chassis consist
of disk or SSD drives, power supplies, and the interface circuitry connecting
it to the controller chassis. The remaining racks (Rack-01 and Rack- 02)
contain from one to three drive chassis.
The following sections provide descriptions and illustrations of the Hitachi
Virtual Storage Platform storage system and its components.
Figure 1-1 Hitachi Virtual Storage Platform