Hitachi AMS 2100, Hardware Manual

Page: 37 / 306

Introduction
1–17
Hitachi AMS 2100/2300 Storage System Hardware Guide
Using an AMS 2000 rack, you can construct a system that meets your needs
by combining base units and expansion units as shown in the following
tables.
:
Table 1-6: Minimum and Maximum System Configurations
Base Unit Expansion Unit
Disk Drives Type Units Disk Drives
Min Max Min Max Min Max
AMS
2100
4 15
Expansion Unit
(RKAK)
0 7 2 per unit 15
Modular 2U
Expansion Unit
(RKAKS)
0 8 2 per unit 24
High-density
Expansion Unit
(RKAKX)
0 3
2 in each
section of
the unit
1
1. Minimum supported HDS configuration is two disk drives installed in slots 0
and 1 in Unit A, and two drives installed in slots 0 and 1 in Unit B.
48
AMS
2300
4 15
Expansion Unit
(RKAK)
0 15 2 per unit 15
Modular 2U
Expansion Unit
(RKAKS)
0 8 2 per unit 24
High-density
Expansion Unit
(RKAKX)
0 4
2 in each
section of
the unit
1
48
Table 1-7: AMS 2100 High-density Expansion Unit Intermix
Unit
Expansion
Units
15 Disk Drives
High-density
Expansion
Units
48 disk Drives
Maximum Number
of Disk Drives
SATA/SAS7.2K
SAS/
SAS(SED)
AMS 2100
0 2 111 91
1 1 78
1
1. Maximum number of disk drives using only high-density expansion units.
68
2 1 93 83
3 1 108
2
98
3 2 156 136
4 0 75 75
5 0 90 90
5 1 138 128
6 0 105 105
7 0 120
3
120
0 3 159 129