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System and Components
1-4
HP StorageWorks Modular Smart Array 30 User Guide
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
Environmental Monitoring Unit
Figure 1-4: Environmental Monitoring Unit
Item Description
1
EMU status LED
2
(This socket not used in Modular Smart Array 30
systems)
Note: The purple handle indicates that the EMU is
hot-pluggable when used with an HP StorageWorks HS-type
controller.
The EMU performs the following functions:
•
Assigns device SCSI addresses, in conjunction with the I/O module
•
Monitors various temperatures relevant to optimum system operation:
— If the internal system temperature reaches 45°C (113°F), the EMU causes the
amber System Fault LED to become illuminated.
— If the ambient (room) temperature reaches 50°C (122°F) and Insight
Manager is running on the system, the EMU sends a signal to this utility to
indicate an alarm condition.
Summary of Contents for MSA 30
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