Temperature And Humidity; Electrical Requirements; Site Wiring And Power - IBM System Storage DS3300 Installation, User's, And Maintenance Manual

Table 3. DS3300 weights (continued)
DS3300
1
2
hard disk drive filler panels.
Table 4. DS3300 component weights
Unit
Hard disk drive
Power supply with fan
Controller (including cache battery backup)
Battery

Temperature and humidity

Table 1 on page 4 lists the acceptable temperature and humidity ranges in which
the storage subsystem is designed to operate.
Notes:
1. The non-operating environment must not exceed the operating environment
2. The storage environment must not exceed the operating environment limits for
3. Substantial deviations from the suggested operating range, in either direction, if

Electrical requirements

Consider the following information when you prepare the installation site:
v Protective ground: Site wiring must include a protective ground connection to
v Circuit overloading: Power circuits and associated circuit breakers must provide
v Power failures: If a total power failure occurs, the unit automatically performs a

Site wiring and power

The storage subsystem uses wide-ranging redundant power supplies that
automatically accommodate voltages to the ac power source. The power supplies
operate within the range of 90 V ac to 264 V ac, at a minimum frequency of 50 Hz
and a maximum frequency of 60 Hz. The power supplies meet standard voltage
requirements for operation both inside the U.S.A. and outside the U.S.A. They use
standard industrial wiring with line-to-neutral or line-to-line power connections.
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System Storage DS3300 Storage Subsystem: Installation, User's, and Maintenance Guide
Chassis with all components and 12 hard disk drives.
Chassis without components and hard disk drives but with front cage frame, midplane, and
limits for longer than 60 days.
longer than 1 year.
sustained for extended periods of time, will expose the unit to greater risk of
failure from external causes.
the ac power source.
Note: Protective ground is also known as safety ground or chassis ground.
sufficient power and overload protection. To prevent possible damage to the unit,
isolate its power source from large switching loads (such as air conditioning
motors, elevator motors, and factory loads).
power-on recovery sequence without operator intervention after power is
restored.
Weight
1
Maximum
Weight
0.95 kg (2.10 lb)
2.52 kg (5.55 lb)
1.72 kg (3.8 lb)
0.22 kg (0.49 lb)
2
Empty