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System and Components
HP StorageWorks Modular Smart Array 30 User Guide
1-7
HP CONFIDENTIAL
Writer: Susan Caesar File Name: b-ch1 System and Components.doc
Codename: NorthStar Part Number: 335900-002 Last Saved On: 10/2/03 3:35 PM
Power Supply and Blower Assembly
Figure 1-6: Power supply and blower assembly
Item Description
1
AC input connector
2
Release latch (purple)
3
Status LED for power supply unit and blower
4
Blower tabs (purple)
5 Blower
The circuitry in the power supply unit provides protection against overloads, short
circuits, and overheating. The EMU monitors a signal sent from the temperature
sensor in the power supply unit and regulates the speed of the blowers according to
the value of this signal. If the temperature exceeds a preset value, the power supply
unit is shut down.
If one power supply unit fails, the remaining functional unit can provide enough DC
power for a full system. However, if only one power supply unit is operational when
a system is powered up, the disk drives are spun up sequentially rather than
simultaneously.
Summary of Contents for MSA 30
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