IBM System Storage Subsystem DS5020 - Manual (Page 51)

Table 5. Temperature and humidity requirements for storage subsystem when in storage or in
transit
Condition Parameter Requirement
Temperature Storage range -10° - 65° C (14° - 149° F)
Maximum rate of change 15° C (27° F) per hour
Transit range -40° C to 65° C (-40° F to
149° F)
Maximum rate of change 20° C (36° F) per hour
Relative humidity (no
condensation) Storage range 8% to 90%
Transit range 5% to 95%
Maximum dew point 26° C (79° F)
Maximum gradient 10% per hour
Table 6. Temperature and humidity requirements for storage subsystem in a typical
Information Technology (IT) or office environment
Condition Parameter Requirement
Temperature Operating range 10° - 35° C (50° - 95° F)
Maximum rate of change 10° C (18° F) per hour
Relative humidity (no
condensation) Operating range 8% to 80%
Altitude
Table 7 lists the acceptable altitudes for operating, storing, and shipping the
DS5020.
Table 7. DS5020 altitude ranges
Environment Altitude
Operating 30.5 m (100 ft.) below sea level to 3000 m
(9842 ft.) above sea level
Storage 30.5 m (100 ft.) below sea level to 3000 m
(9842 ft.) above sea level
Transit 30.5 m (100 ft.) below sea level to 12,000 m
(40,000 ft.) above sea level
Airflow and heat dissipation
Figure 10 on page 22 shows the intended airflow for the DS5020. Allow at least 30
inches in front of the storage subsystem and at least 24 inches behind the storage
subsystem for service clearance, proper ventilation, and heat dissipation.
Chapter 1. Introduction 21