About Your System 13
Back-Panel Indicators and Features
Figure 1-4 shows the back-panel features of the enclosure. Two RAID controller modules and two power
supply/cooling fan modules must be installed for the enclosure to operate properly. However, the
enclosure can run temporarily on one power supply/cooling fan module. For more information, see
"Power Supply and Cooling Fan Features" on page 18.
Figure 1-4. Back-Panel Features
Green flashing (250 milliseconds
[ms])
Physical disk is being identified
Green flashing
On 400 ms
Off 100 ms
Physical disk rebuilding
Amber flashing (125 ms) Physical disk failed
Flashing green, amber, and off Physical disk failure predicted (SMART)
Green 3 seconds, amber
3 seconds, and off 3 seconds
Physical disk rebuild aborted
1 RAID controller module 0 2 RAID controller module 1 3 power supply/cooling fan
modules (2)
Table 1-3. Physical Disk Carrier Status LEDs (continued)
Status LED Description
1 2
3
