Component Identification
HP StorageWorks Modular Smart Array 500 System Maintenance and Service Guide 4-9
HP CONFIDENTIAL Codename: Aurora Part Number: 251850-004 Last Saved On: 9/19/03 11:00 AM
Controller LEDs
15
7
14
6
13
5
12
4
11
3
10
2
9
1
8 17
0 16
Table 4-9: 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
active
Off = No Notify On Event
command active
7 Host port B notification Green = Notify On Event command
active
Off = No Notify On Event
command 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.
11 Logical I/O activity Green = Currently processing
logical requests from the host
adapter.
Off = No processing of logical
requests
12 SCSI bus 0 activity
13 SCSI bus 1 activity
Green = Outstanding requests on
the SCSI bus
Off = No outstanding requests
continued
