Table 6. Common controller module LEDs (continued)
LED Description Color Status
Cache status Green On—Cache contains unwritten data, controller module is
functioning properly
Fast flash (1s:1s)—Cache is active, cache flush in progress
Slow flash (3s: 1s)—Cache self-refresh in progress after
cache flush
Off—Cache is clear or system is coming online
Ethernet management port
speed
Amber On—1000Base-T negotiated rate
Off—10/100Base-T negotiated rate
ACT Ethernet management port
link activity
Green On—Ethernet link is up
Off—Ethernet link is down
12 Gb/s SAS expansion
port status
Green On—Connected, link is up
Green or amber Flashing—Link activity
Amber On—Connected, partial link is up
None Off—Not connected or link is down
The following figure shows the host port LEDs on a 32Gb/s Fibre Channel controller module:
Figure 27. 32Gb/s Fibre Channel ports
LED
Description Color Status
Fibre Channel link activity Green On—Connected, link is up
Flashing—Link activity
Off—Not connected or link is down
The following figure shows the host port LEDs on a 25 GbE iSCSI controller module:
Figure 28. 25 GbE iSCSI ports
LED
Description Color Status
iSCSI link activity Green On—Connected, link is up
Flashing—Link activity
Off—Not connected or link is down
The following figure shows host port LEDs on a 10Gbase-T iSCSI controller module:
Storage system hardware
23
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