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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