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Item
Name
Condition
Color
Meaning
1
SCSI bus 3 activity
On
Green
There is activity on this SCSI bus.
2
SCSI bus 2 activity
On
Green
There is activity on this SCSI bus.
3
SCSI bus 1 activity
On
Green
There is activity on this SCSI bus.
4
SCSI bus 0 activity
On
Green
There is activity 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 active.
14
Cache activity
Off
—
There is no cache activity.
15
Drive failure
On
Green
A con
fi
gured 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 con
fi
gured 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
fi
gure and table describe their locations and
meanings.
1510i Modular Smart Array maintenance and service guide
21