Hitachi AMS 2000 Series Service Manual page 84

Table 1-33: Modular 2U SAS Expansion Unit Back Panel (Continued)
Item









Disk drive status LEDs
Each disk drive in the modular 2U SAS expansion unit has the following
LEDs.
 
5

Figure 1-45: Modular 2U SAS Expansion Tray Disk Drive LEDsl
1–44
Locate LED (orange) — lights when a modular 2U SAS expansion unit has
encountered a serious error. Please contact Hitachi Data Systems Technical
Support. See the Getting help section in the Preface of this manual.
• Blink one time fast = SRAM error.
• Blink two times fast = ENC hard error.
• Blink three times fast = firmware error in flash memory.
• Not blinking = boot section error of ENC firmware, RAM error, or ENC hard
configuration error.
Power LED (green)
• ON = normal operation; the section is fully operational.
• Slow Blink = firmware download is complete.
• Fast Blink= firmware is downloading (do not turn off the array).
IN from RKS/RKES/RKM/RKEM,RKH/RKHE/RKEH or RKAK/RKAKS/RKAKX
PATH IN LED (green) appears above this connector.
OUT to RKAK/RKAKX IN
PATH OUT LED (green) appears above this connector.
RDY LED (green)
• ON = DC output is normal.
AC IN (green)
• ON = expansion unit is receiving power.
ALM LED (red)
• ON = a failure occurred in the ENC unit, rendering it inoperable.
Power receptacle (J1)
Console


Introduction
Hitachi AMS 2000 Family Storage System Service Guide
Description