Hitachi AMS 2100, Hardware Manual

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Functional and operational characteristics
Hitachi AMS 2100/2300 Storage System Hardware Guide
Array specifications
Each AMS 2100/2300 base unit and expansion unit contains the physical
disk drives, including the disk array groups and the dynamic spare disk
drives.
Each rack has dual AC power distribution units (PDU). Each PDU is
connected to a different power source, so that if one source fails, the other
will still supply power to the arrays.
The AMS 2100 array can be configured with one AMS 2100 base unit and
from 0 to 7 expansion units or a maximum of one high-density expansion
unit for a maximum total of 120 disk drives. Using 3 TB disk drives, this
configuration provides a maximum of 330.7 TB of storage space in RAID 5
(14D+1P) configuration. See Table 1-7 for specifications regarding mixing
expansion units and high-density expansion units.
The AMS 2300 array can be configured with one AMS 2300 base unit and
from 0 to 15 expansion units or up to four high-density expansion units for
a maximum total of 240 disk drives. Using 3 TB disk drives, this
configuration provides a maximum of 661.5 TB of storage space in RAID 5
(14D+1P) configuration. See Table 1-7 for specifications regarding mixing
expansion units and high-density expansion units.
The basic specifications of the AMS 2100/2300 are shown in Table 2-6 .
Table 2-5: High-capacity Expansion Unit Block Diagram
Item Description Item Description

ENC Unit A0

Power Supply A0

SAS / SATA Control

Power Supply A1

Disk Drives
1
Drives 0 -3 are required.
Drives 4 - 23 are optional
1.Supported disk drives: DF-F800-ANH600X, DF-F800-AKH450X, DF-F800-
AKH600X (SAS drives), DF-F800-AVE1KX, DF-F800-AVE2KX (SATA), DF-F800-
AVE3KX(SATA drives) , DF-F800-AWE2KX (SAS7.2K drive),

Power Supply B0

Disk Drives
1
Drives 4 - 23 are optional
Power Supply B1

ENC Unit A1
From Base Unit, Expansion Unit, or
High-density Expansion Unit

ENC Unit B0
To Expansion Unit or High-density
Expansion Unit

ENC Unit B1