Temperature And Humidity; Temperature And Humidity Requirements - IBM DS3500 Installation, User's, And Maintenance Manual

Table 1-5. DS3524 storage subsystem and EXP3524 storage enclosure weights
Model
DS3524 with ac power supply and
fan units
DS3524 with dc power supply and
fan units
EXP3524 with ac power supply and
fan units
EXP3524 with dc power supply and
fan units
1
Chassis with dual controller or ESMs and 24 drives.
2
Chassis without power supplies, controllers or ESMs, and drive filler panels.
Table 1-6. DS3500 component weights
Unit
2.5–inch drive
3.5–inch drive
AC power supply with fan
DC power supply with fan
Controller (including cache battery backup and no host
port adapter)
Fibre channel host daughter card
iSCSI host daughter card
SAS host daughter card
Battery
ESM

Temperature and humidity

Table 1-7 lists the acceptable temperature and humidity ranges for the storage subsystem in typical
Information Technology (IT) or office environments.
Table 1-7. Temperature and humidity requirements for storage subsystems in an Information Technology (IT) or office
environment
Condition
Temperature (storage subsystem On)
Relative humidity (storage subsystem
On)
1
Maximum
25.9 kg (57.1 lb)
25.85 kg (56.99 lb)
25.2 kg (55.5 lb)
25.15 kg (55.45 lb)
Weight
0.25 kg (0.55 lb)
0.78 kg (1.72 lb)
2.50 kg (5.31 lb)
2.36 kg (5.21 lb)
2.05 kg (4.52 lb)
.08 kg (.18 lb)
.05 kg (.11 lb)
.07 kg (.15 lb)
.15 kg (.33 lb)
1.75 kg (3.86 lb)
Parameter
Operating range
Altitude
Maximum rate of change
Operating range
Maximum dew point
Maximum humidity gradient
2
Empty
10.7 kg (23.6 lb)
Requirement
10° to 35°C (50.0° to 95°F)
30.5 (100 ft) below to 3000 m (9840 ft)
above sea level
10°C (18°F) per hour
20% to 80%
26°C (79°F)
10% per hour
Chapter 1. Introduction
1-17