Led Display During Controller Active; Cache Status Leds - Adaptec PM1564U3 Install Manual

LED Display During Controller Active

When the power-up sequence is complete, viewing the LEDs can help
you determine the operating status of the controller. These LED
patterns are also useful for troubleshooting. Refer to Appendix B,
"Troubleshooting Guide" for more information on interpreting LED
patterns.
LED
1
2
3
4
5
6
7
8
IRQ

Cache Status LEDs

Two LEDs on the SmartRAID VI controller indicate the status of the
onboard cache RAM. Refer to Appendix A, "Assembly Drawings" for the
location of the LEDs on your controller.
•
The green ECC Enabled LED is lit when the installed DIMMs are
DPT ECC memory modules. This indicates that the controller data
cache is ECC protected.
•
The red ECC Error LED, is lit when a correctable or non-correctable
error has been detected in one of the ECC DIMMs. After the error
has been corrected, the LED will be on until a the controller is
powered-down. Cache failure information is recorded in the
controller error log and can be viewed using the Event Log window
in Storage Manager.
About Your Controller
Function
Heartbeat. Indicates that controller interrupts are enabled
and that the controller is alive. During controller activity, this
LED flashes four times a second.
Indicates the occurrence of a non-maskable interrupt (NMI) to
the I/O processor on the controller.
Indicates the controller's internal operating system is in its idle
loop.
Indicates that the controller's internal operating system is
processing an interrupt.
Reserved for future use.
Indicates that the cache controller is using DMA to perform a
data transfer.
Indicates the controller is generating parity information for a
RAID 5 array (hardware XOR).
Indicates that there is a command on the SCSI bus.
Lit only when the controller activates an interrupt on the host
PCI bus.
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