HP StorageWorks 500 G2 Modular Smart Array - Manual (Page 20)

20 HP StorageWorks MSA500 G2 Storage System User Guide
Controller LEDs
Item LED Description Status
0-2 Busy status Green = Controller is idle.
Off = Controller is operating at full capacity.
3-5 No function —
6 Host port A notification Green = Notify On Event command is
active.
Off = No Notify On Event command is
active.
7 Host port B notification Green = Notify On Event command is
active.
Off = No Notify On Event command is
active.
8 Idle heartbeat Controller is idle and functioning.
9 Active/Standby Green = Controller is active.
Off = Controller is in standby.
10 DMA activity Green = DMA transfers are active.
Off = No DMA transfers are active.