User Manual

Storage System Hardware Components
80 Enterprise Virtual Array 3000 User Guide
Table 11: Nonoperational I/O Module LED Descriptions and Status Displays
Top LED Power LED Bottom LED Descriptions
On On Off ■ Top Port—FC-AL signal detected.
■ Power—Present (After one minute the power LED
will be On constantly).
■ Bottom Port—No FC-AL signal detected.
Check transceiver and fiber cable connections.
Note: This status is also displayed when connected
to a FC Loop switch.
Off On On
■ Top Port—No FC-AL signal detected.
Check transceiver and fiber cable connections.
■ Power—Present.
■ Bottom Port—FC-AL signal detected.
Flashing On On
■ Top Port—EMU detected possible transceiver
problem.
Check transceiver and fiber cable connections.
■ Power—Present.
■ Bottom Port—FC-AL signal detected.
On On Flashing Top Port—FC-AL signal detected.
Power—Present.
Bottom Port—EMU detected possible transceiver
problem.
Check transceiver and fiber cable connections.
Note: The EMU will not blink the bottom LED on its
own. It will only blink in response to a locate
command. You can blink each of the lights
independently for a locate and, if so, they may not
be in unison.
Off Off Off ■ No I/O module power.
■ I/O module is nonoperational.
■ Check power supplies. If power supplies are
operational, replace I/O module.