Models And Optional Devices - IBM DS3500 Installation, User's, And Maintenance Manual

Table 1-1. Features and operating specifications (continued)
Hard disk drives:
v DS3512 and EXP3512: 12 LFF
3.5–inch 6 Gbps
v DS3524 and EXP3524: 24 SFF
2.5–inch 6 Gbps
Drive type: SAS, NL SAS, and SSD
Storage controllers:
(DS3500) SAS interface: Three 26-pin,
mini-SAS connectors per controller
ESMs:
(EXP3500) SAS interface: Three
26-pin, mini-SAS connectors per ESM
Notes:
1. Power consumption and heat output vary depending on the number and type of optional features that are
installed and the power-management optional features that are in use.
2. These levels were measured in controlled acoustical environments according to the procedures specified by the
American National Standards Institute (ANSI) S12.10 and ISO 7779 and are reported in accordance with ISO 9296.
Actual sound-pressure levels in a given location might exceed the average stated values because of room
reflections and other nearby noise sources. The declared sound-power levels indicate an upper limit, below which
a large number of computers will operate.

Models and optional devices

The DS3500 storage subsystem controller cache size, partitions, and other features vary depending the
model and optional devices. Table 1-2 shows the DS3500 models and options available at time of
publication. Contact your IBM marketing representative or authorized reseller for more information about
the models and options.
Table 1-2. DS3500 models and optional devices
Base configurations
DS3512 Single Controller:
v One controller with 1 GB cache
v Two 6 GB SAS ports
v Supports one host interface card
DS3512 Dual Controller:
v Two controllers each with 1 GB cache (2 GB total)
v Four 6 GB SAS ports
v Supports two host interface cards (must be of same
type)
Acoustical noise emissions:
v DS3512 and EXP3512 fully
populated with 12 drives
– Sound power (idling): 6.2 bels
– Sound power (operating): 6.2
bels
– Sound pressure (idling): 62
dBA
– Sound pressure (operating): 62
dBA
v DS3524 and EXP3524 fully
populated with 24 drives
– Sound power (idling): 6.4 bels
– Sound power (operating): 6.4
bels
– Sound pressure (idling): 64
dBA
– Sound pressure (operating): 64
dBA
Optional features (for all base configurations as
appropriate)
Host Interface Cards:
v 6 Gbps SAS 2-port daughter card
v 8 Gbps FC 4-port daughter card (includes two 8 GB
SFP transceivers)
v 1 Gbps iSCSI 4-port daughter card
v 10 Gbps iSCSI 2-port daughter card with RJ-45 port
connectors
Additional Hardware Options:
v Second controller (for single-controller base system)
v 8 GB FC SFP transceiver pair
v 2 GB cache upgrade (quantity one for single controller,
two for dual controller)
Electrical input (ac models):
v Sine-wave input (50 - 60 Hz)
required
v Input voltage low range:
– Minimum: 90 V ac
– Maximum: 140 V ac
v Input voltage high range:
– Minimum: 200 V ac
– Maximum: 264 V ac
v Approximate input kilovolt-amperes
(kVA):
– Minimum: 0.06 kVA
– Maximum: 0.38 kVA
Electrical input (dc models):
v Input voltage range:
– Minimum: -42 V dc
– Nominal: -48 V dc
– Maximum: -60 V dc
v Operating current: 16 A to 11.2 A
Chapter 1. Introduction
1-5