Acer SmartRAID V Bedienungsanleitung Seite 34

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2-12
About Your New SmartRAID V Controller
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 for
more information on interpreting LED patterns.
LED Function
1 Heartbeat. Indicates that controller interrupts are enabled and
that the controller is alive. During controller activity, this LED
flashes four times a second.
2 Indicates the occurrence of a non-maskable interrupt (NMI) to the
I/O processor on the controller.
3 Indicates the controller’s internal operating system is in its idle
loop.
4 Indicates that the controller’s internal operating system is
processing an interrupt.
5 Reserved for future use.
6 Indicates that the cache controller is using DMA to perform a data
transfer.
7 Indicates the controller is generating parity information for a RAID
5 array (hardware XOR).
8 Indicates that there is a command on the SCSI or Fibre bus.
IRQ Lit only when the controller activates an interrupt on the host PCI
bus.
Cache Status LEDs
Two LEDs on the SmartRAID V 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 all installed SIMMs or 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 SIMMs or DIMMs. The
LED will stay lit, even after the error has been corrected, until 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.
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