Table 5 Battery pack status LED
LEDs Meaning
Red If this LED is on immediately after installing a new battery pack, it
indicates that an initial battery char
ging and conditioning cycle is in
pr
ogress. The initial battery conditioning takes approximately 24
hours, and the LED will turn o after the cycle is complete.
If this LED is on during normal operation (not after installing a new
battery pack), either the battery has exceeded its two year life or a
problem has been detected. Check the battery status before
determining any service operation.
O Normal operation.
Table 6 Fan status LEDs
LEDs Meaning
Red Fan has failed, fan speed is out of acceptable range, or fan speed is
not being r
eported. (This LED will be on if the corr
esponding fan has
been removed.)
When on, this LED indicates a failure and that the fan is not operating
correctly. Replace the fan as soon as possible.
O Normal operation.
Table 7 Hard disk activity and status LEDs
LEDs Meaning
Blue If this LED is on and blue, the disk is operating normally and no
pr
oblems have been detected. If the LED is ashing blue, it indicates
disk activity. If the LED is on, but not ashing, ther
e is currently no
disk activity.
Red If this LED is on immediately after installing a new hard disk, it
indicates that the RAID conguration for the server is being rebuilt.
The LED will turn o after the RAID conguration is restored. The
amount of time it takes for the RAID conguration to be rebuilt after a
new disk drive is installed depends on the amount of user and system
conguration data stored.
If this LED is on during the course of normal operation (not after
installing a new hard disk), either the disk has failed or the server’s
RAID conguration has been degraded.
LED status indicators
Chapter 4: Hitachi NAS Platform server components
Hitachi NAS Platform and Hitachi Unied Storage Series 4000 Hardware Reference 37
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