Specifications

Item Name
Condition Color
Meaning
1
SCSI bus 3 activity
On Green
ThereisactivityonthisSCSIbus.
2
SCSI bus 2 activity
On Green
ThereisactivityonthisSCSIbus.
3
SCSI bus 1 activity
On Green
ThereisactivityonthisSCSIbus.
4
SCSI bus 0 acti
vity
On Green
There is activ
ity on this SCSI bus.
5
Logical I/O activity
On Green
Requests from the host are being processed.
6 Direct Memory Access activity On Green
Direct Memory Access transfers are active.
On Green
This controller is active.
7
Active/Standby
Off
—
This controller is in standby.
Blinking
Green
This controller is functioning normally
Off
—
The controller has failed or is receiving no power.
8
Heartbeat
Solid
Green
The controller has failed.
9
Fault
On
Amber
An error message has been sent to
nl
the LCD panel.
10
Redundancy
On Green
The two controllers are in a redundant mode
nl
of operation.
On Green
This controller is idle.
11 – 13
Busy status—These 3
nl
LEDs are used to progressively
nl
represent the processing load
nl
on the controller.
Off
—
This controller is busy processing
nl
requests.
On Green
The cache is a
ctive.
14
Cache activity
Off
—
There is no cache activity.
15
Drive failure
On Green
Aconfigured hard drive has failed.
16
Management
port
nl
activity
On Green
There is activity on the management port.
17
Link status
for port 0
nl
of this controller
On Green
A link to this Ethernet port has been established.
18
Link status for port 1
nl
of this controller
On Green
A link to this Ethernet port has been established.
Hard drive LEDs
When a hard drive is configured as a part of an array and attached to a powered-on controller, the
status of the hard drive can be determined from the illumination pattern of its LEDs.
SCSI hard drive LEDs
Each SCSI hard drive has three LEDs. The following figure and table describe their locations and
meanings
.
1510i Modular Smart Array maintenance and service guide
21