Owners Manual

PS5000 Hardware Maintenance Maintaining Control Modules
3–2
Note: This manual shows PS5000 arrays with Type 5 control modules installed.
The information is also applicable to arrays with Type 4 control modules.
See the PS Series Release Notes for the latest supported control modules.
Interpreting Control Module LEDs
Control modules have LEDs that enable you to determine the status of the control
module (active or secondary) and identify problems. In addition, each network
interface on a control module also has LEDs.
Figure 3-1: Control Module LEDs
Table 3-1: Control Module LED Descriptions
Control Module LEDs Color Description
ACT Off No power, secondary control module is not
synchronized with active control module, or
error condition.
Green Active control module (serving network I/O).
Orange Secondary control module; cache is
synchronized with active control module.
ERR Off No power or no error condition.
Red Array is starting up or error condition.
PWR Off No power.
Green Power.
Table 3-2: Network Interface LED Descriptions
Network Interface LEDs Color Description
Left (as shown in
Figure 3-1)
Off
No power or not connected to network.
Green Connected to network.
Right (as shown in
Figure 3-1)
Off No power or not transmitting.
Green Transmitting.