Number Item Description
1 Controllers Controller 1 (left) and
Controller 2 (right).
2 Front end module N/A
3 CTL ALM LED Red: Controller can be
removed.
Blink red: Failure with the
power supply unit of the
controller.
Amber: LAN reset switch
was pressed.
4 BACKUP STTS LED Green: Power restoration in
progress following power
outage.
Fast blink green: Restoring.
Slow blink green: Restoring,
or sequential shutdown in
progress.
5 CTL WARN LED Amber blink one time:
Failure with fan 0.
Amber blink two times:
Failure with fan 1.
6 Cache ash memory N/A
7 LAN-RST switch Use only when instructed
by customer support.
8 LAN port Maintenance LAN port (left)
and user LAN port (right).
9 Uninterruptible power
supply (UPS) port
N/A
10 ALARM LED (for cache ash
memory)
Red: Cache ash memory
can be removed.
11 Backup module N/A
12 STATUS Green: Charging of the
battery in the backup
module is complete.
Blink green: Battery in the
backup module is charging
or discharging.
CBSL controller rear panel LEDs
Chapter 2: System controllers
Hitachi Virtual Storage Platform G350, G370 Hardware Reference Guide 24
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