IBM Flex System Storage Expansion Node
7
Figure 5. LEDs on the front of the Storage Expansion Node
Table 5 identifies the meanings of the LEDs.
Table 5. External LED status table
LED
Color
Meaning
Activity light
(each drive
bay)
Green
Blinks with Activity, displaying drive number.
Fault/Locate
Amber
Solid: Indicates a fault on one of the drives
Blink: One of the drives is set to “identify”
Tray Open
Amber
Flash/beep 15 sec interval: Drawer is not fully closed.
Flash/beep 5 sec interval: Drawer has been opened to long, close drawer immediatly
Flash/beep .25 sec interval: Expansion node has reached thermal threshold. Close
door immediately to avoid drive damage.
In addition to the lights described in the previous table, there are LEDs locally on each of the drive trays.
These lights can be observed when the drive tray is extended and the unit is operational. A green LED
indicates disk activity and an amber LED indicates a drive fault.
With the Storage Expansion Node removed from the Flex System chassis and its cover removed, there
are additional LEDs visible. If there is a fault detected then the relevant LED will light:
Flash/RAID adapter: RAID Cache card fault.
Control panel: LED panel card not present
Temperature: A temperature event has occured
Storage expansion: Fault on the storage expansion unit
Light path: Verify that the light path diagnostic function, including the battery, is operating properly
