Figure 2. SC420 Front-Panel Features and Indicators
Item
Name
Icon
Description
1
System identification
button
The system identification button on the front control panel
can be used to locate a particular enclosure within a rack.
When the button is pressed, the system status indicators on
the control panel and the Enclosure Management Module
(EMM) blink blue until the button is pressed again.
2
Power LED
The power LED lights when at least one power supply unit
is supplying power to the enclosure.
3
Enclosure status LED
The enclosure status LED lights when the enclosure power
is on.
• Solid blue during normal operation.
• Blinks blue when a host server is identifying the
enclosure or when the system identification button is
pressed.
• Blinks amber or remains solid amber for a few seconds
and then turns off when the EMMs are starting or
resetting.
• Blinks amber for an extended time when the enclosure
is in a warning state.
• Remains solid amber when the enclosure is in the fault
state.
4
Hard disk drives
• SC400: Up to 12 3.5-inch SAS hot-swappable hard disk
drives.
• SC420: Up to 24 2.5-inch SAS hot-swappable hard disk
drives.
8
About the SC400/SC420 Expansion Enclosure