Chapter 6 Checking LEDs
6-7
The I/O controller module LEDs and their color definitions are shown in Table 6-4.
Table 6-4
I/O Controller Module and Battery Module LEDs
LED
Purpose
LED Color Definition
Battery
Status of battery
Solid green – Battery charged
Blinking green – Battery charging
Solid amber – Battery failed
Activity
I/O activity of host
and disk ports
Off – Not busy (no I/O activity)
Blinking green – Busy (active I/O)
Cache
Status of memory
cache
Off – Clean cache
Blinking green – Dirty cache; data is in
memory and is not written to disk yet
Ethernet link
(active
controller)
Status of Ethernet
link
Solid amber – Active link
Off – Inactive connection
Ethernet link
(inactive
controller)
Status of Ethernet
link
Off – Active connection on inactive
controller, or inactive connection
Ethernet active
Status of Ethernet
activity
Blinking green – Busy
RAID controller
Status of controller
on I/O controller
module
Blinking green – Good (primary controller)
Solid green – Good (secondary controller)
Solid amber – Failed RAID controller or I/O
module
SFP link (L)
SFP link status
Solid green – Active good FC Connection
Off – Empty or failed FC connection
SFP speed (S)
SFP speed status
Solid green – 2 Gbit
Off – 1 Gbit
