
Once connected, each GE port has two indicator LEDs; one green and one amber. These
LEDs provide link status and network activity status information as follows:
Status/Activity (Per Port)
Meaning
Status
Green
(On, not
flashing)
1 Gbps link present
Green Flashing
1 Gbps link standby in a redundant
configuration
Green
Off
No link
Activity
Amber Flashing Network activity
Amber
Off
No network activity
Rear panel LED state descriptions
The NVRAM, power, and server status LEDs indicate whether the server is powered, its
operational state, and whether the NVRAM is currently being protected by battery
backup power. The way an LED
flashes
provides further information about what is
currently occurring.
NVRAM Status LED (Green/Amber)
Table 11 NVRAM status LED (green/amber)
State
Meaning
Green
(solid)
Normal operation
Green
(flashing)
NVRAM contents are protected by battery power
Amber
(solid)
Battery pack is faulty or not
fitted
Off
Disabled or NVRAM battery power exhausted
Table 12 Power Status LED (Green)
State
Meaning
Green
Normal operation with a single Hitachi NAS Platform or an active Hitachi
NAS Platform in a clustered operation.
Slow Flash The system has been shut down. Flashes once every three seconds.
Rear panel LED state descriptions
Chapter 4: Hitachi NAS Platform server components
Hitachi NAS Platform and Hitachi
Unified
Storage Series 4000 Hardware Reference
46