IBM DCS3860, Installation, User'S, And Maintenance Manual

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1
Power-on LED (green)
LED is lit, it indicates that the power supply is turned on and is supplying
both 5-volt and 12-volt dc power.
2
Standby power LED (green)
Future use only.
3
System locator LED (blue)
This blue LED can be lit by the Storage Manager software to aid in
visually locating the storage system.
4
Overtemperature LED (amber)
When this amber LED is lit, it indicates that the storage system is in an
over temperature condition.
5
System error LED (amber)
When this amber LED is lit, it indicates that the unit has a fault, such as in
a power supply, controller, or drive.
Controller LEDs
This section describes the controller LEDs on the rear of the storage system.
Ethernet speed LED
When this LED is lit, it indicates that the Ethernet speed between the
controller and the management workstation is 1000 Mbps. When this LED
is off, it indicates that the Ethernet speed is 100 Mbps.
Ethernet activity LED
When this LED is lit, it indicates that the link is established between the
controller and the management workstation. When this LED is flashing,
there is activity between the controller and the management workstation.
When this LED is off, no link is established between the controller and the
management workstation.
SAS link service action LED (amber)
When this LED is lit, it indicates a problem with the SAS link that requires
service action. The normal condition of this LED is off.
SAS link up LED (green)
When this LED is lit, it indicates that the link is established between the
controller and a host. When this LED is flashing, it indicates activity on the
link. When this LED is off, no link is established.
SAS link service
action LED (amber)
SAS link up LED
Battery fault LED (amber)
Battery charging LED (green)
Fault LED (amber)
Service Action Allowed (blue)
Cache active LED (green)
Ethernet speed LED
Ethernet activity LED
dcsi0047
Figure 28. Controller LEDs
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IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide