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Table 19. Common Controller LEDs patterns
LED pattern Status
Solid Flashing
Active and no fault - Status LEDs = 0x00 blinking 0x80
Solid
Flashing
Solid
Passive and no fault - Status LEDs = 0x6E blinking 0xEE
Solid
Held in reset - Status LEDs = 0xFF (no blinking) and fault LED
lit
Solid
Memory error - Status LEDs = 0x66 (no blinking) and fault LED
lit
Solid
LEDs blinking on/off
from right to left
then left to right
Boot menu - Fault LED lit and status LEDs are + single cycling
LED (LSB-MSB)
Solid
LEDs turning on
from right to left
then turning off left to right
Firmware download - Fault LED lit and status LEDs are one to
all cycling
Solid Flashing Flashing
Controller fails self test/start of day - Flashing code (Contact
IBM support for help in troubleshooting the problem)
130 IBM TotalStorage DS4500 Fibre Channel Storage Subsystem: Installation, User’s, and Maintenance Guide