Fibre Channel Interface - Hitachi AMS 2100 Hardware Manual

2. Maximum number of disk drives using intermix of expansion units and high-
density expansion units.
3. Maximum number of disk drives using only expansion units.
:
Table 1-8: AMS 2300 High-density Expansion Unit Intermix
Unit
AMS 2300
(1 RK2)
HW Rev
0100
• To use AMS 2100/2300 systems efficiently, Hitachi Data Systems
recommends that users mount a spare drive in each of the unused
drive slots. Up to 15 spare disks can be set up in any location with an
AMS 2100 and up to 30 spare disk drives with an AMS 2300.
• From the host computer, the array can be used not only as a single-
large scale disk drive but also as 2048 logical disks (logical units)
maximum in an AMS 2100 and 4096 logical units in an AMS 2300.

Fibre channel interface

The AMS2100/AMS2300 supports open system operations. The AMS2100/
AMS2300 supports up to 4 fibre-channel ports. The AMS2300 Fibre Channel
interface is capable of operating at data transfer speeds of up to 800 MB/
sec. The AMS2100 Fibre Channel interface is capable of operating at data
transfer speeds of up to 400 MB/sec. The AMS2100/AMS2300 supports
shortwave multimode optical cables. With these shortwave fibre channel
cards, the AMS2100/AMS2300 can be located up to 860 meters from the
open-system host.
1–18
Standard
Expansion Units Expansion Units
15 Disk Drives 48 Disk Drives
0 4
1 4
2 3
3 3
4 3
5 3
6 2
7 2
8 1
9 1
10 1
11 1
12 0
13 0
14 0
15 0
Introduction
Hitachi AMS 2100/2300 Storage System Hardware Guide
Maximum
Number of Disk
Dense
Drives
SATA/
SAS7.2K
207
222
189
204
219
234
201
216
183
198
213
228
195
210
225
240
Status
SAS/
SAS(
SED)
167
182
Maximum with
159 dense
expansion units
174
189
204
181
196
173
Maximum with
188
intermix of
203
expansion units
218
196
210
225
Maximum with
240
standard tray