Controller LEDs
During normal runtime, the array controller has 18 LEDs that indicate controller activity or malfunction.
1
0
16
2
3
4
5
6
7
9
8
17
10
11
12
13
14
15
15588
Item
Name
Condition
Meaning
1
Drive failure
On
A con
fi
gured hard drive has failed.
On
Cache active.
Off
No cache activity.
2
Cache activity
Blinking
Cache transfer pending.
3
SCSI bus 1 activity
On
Activity on the bus.
4
SCSI bus 0 activity
On
Activity on the bus.
5
Logical I/O activity
On
Currently processing logical requests from
the host adapter.
6
Direct Memory Access
(DMA) activity
On
DMA transfers are active.
On
This controller is active.
7
Active/Standby
Off
This controller is standby.
8
Heartbeat
Blinking
The controller is functioning properly.
9
Fault
On (amber)
An error message has been sent to the
controller LCD display panel.
10
Redundancy active
On (green)
The two controllers and the two Fibre
Channel I/O modules are in a redundant
mode of operation.
On
The controller is idle.
11–13
Busy status — These
three LEDs are used to
progressively represent the
processing load on the
controller.
Off
The controller is operating at full capacity.
14–18
Fibre Channel ID
—
Indicates the 5–bit Arbitrated Loop Physical
Address (ALPA) assigned to this array
controller (not applicable in fabric mode).
22
System components and LEDs
Summary of Contents for 201723-B21 - HP StorageWorks Modular SAN Array 1000 Hard Drive
Page 8: ...8 ...
Page 12: ...12 About this guide ...
Page 18: ...18 Specifications ...
Page 28: ...28 System components and LEDs ...
Page 58: ...58 LCD panel and message descriptions ...
Page 94: ...94 Customer replaceable components ...
Page 98: ...98 Capacity expansion and extension ...
Page 104: ...104 Hard drive failures and faulted LUNs ...
Page 110: ...110 SCSI hard drive firmware ...