Hitachi AMS 2100, Руководство по оборудованию

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2–2
Functional and operational characteristics
Hitachi AMS 2100/2300 Storage System Hardware Guide
Overview of the AMS 2100/2300 storage system
Architecture and components
The system architecture of the AMS 2100 and AMS 2300 are similar, as is
their physical construction. Both arrays contain many of the same
components. The block diagrams in this section show the differences and
similarities of the two units.
AMS 2100 configuration architecture
This section contains the configuration block diagrams of the AMS 2100
base unit. Each controller contains two Fibre Channel ports or two iSCSI
ports, depending on which interface board is installed in the controller. The
AMS 2100 includes the following features:
• An AMS 2100 base unit and expansion unit can mount up to 15 disk
drives. A modular 2U SAS expansion unit can mount up to 24 disk
drives. A high-density expansion unit can mount up to 48 disk drives.
See Disk drive configurations in Chapter 4 for information about the
number and type of disc drives that can be installed in each unit.
• An AMS 2100 base unit includes two control units that can control up to
159 disk drives each in a RAID configuration.
• The disk drives in the base unit, expansion units, and high-density
expansion units can be assigned to data disk(s), parity disk(s) or
(mirror disk(s)) depending on the RAID level.
• Up to 15 spare disks can be mounted in any locations within an AMS
2100 configuration.
Figure 2-1 shows the configuration block diagram of an AMS 2100 array.
Table 2-1 provides a description of each numbered part.