IBM SYSTEM STORAGE EXP3000 - INTEROPERABILITY MATRIX 10-19-2010, Manual, Page: 30 / 64

Bezel (right side)
The right bezel contains the hard disk drive identification information, as
shown in the following illustration.
Drives 1 - 4
Drives 5 - 8
Drives 9 - 12
Front view: LEDs
The LEDs on the front of the EXP3000 are shown in the following illustration.
Hard disk drive activity LED
Hard disk drive status LED
System Storage
Power-on LED
System locator LED
System error LED
Overtemperature LED
Power-on LED (green)
When this green LED is lit, it indicates that the power supply is turned on
and is supplying both 5-volt and 12-volt dc power to the EXP3000.
System locator LED (blue)
This blue LED can be lit by the systems-management software on the RAID
controller that is connected to the EXP3000, to aid in visually locating the
EXP3000.
Overtemperature LED (amber)
When this amber LED is lit, it indicates that the EXP3000 is in an
overtemperature condition.
System error LED (amber)
When this amber LED is lit, it indicates that the unit has a fault, such as in
a power supply, ESM, or hard disk drive.
Hard disk drive activity LED (green)
Each hard disk drive has an activity LED. When this green LED is flashing,
it indicates drive activity.
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System Storage EXP3000: Installation, User’s, and Maintenance Guide