HP AA988A - Modular Smart Array Storage Controller SCSI User Manual page 18

Table 1-5 Controller LEDs (Back) (Continued)
Location LED
Controller
module
Controller
module
Controller
module
Controller
module
Controller Cache status
module
18 HP StorageWorks 2012sa Modular Smart Array user guide • May 2008
Color
Unit Locator White
OK to Blue
Remove
Fault/Service Amber
Required
OK Green
Green
State Description
Off Normal operation.
Blink Physically identifies the controller module.
Off The controller module is not prepared for
removal.
On The controller module can be removed.
On A fault has been detected or a service action
is required.
Blink Indicates a hardware-controlled power up or
a cache flush or restore error.
Off Controller module is not OK.
On Controller module is operating normally.
Blink System is booting.
Off Cache is clean (contains no unwritten data).
On Cache is dirty (contains unwritten data) and
operation is normal.