|
Feature |
Product |
Release introduced |
|---|---|---|
|
Power Management |
5320 Series |
Fabric Engine 8.6 |
|
5420 Series |
VOSS 8.4 |
|
|
5520 Series |
VOSS 8.2.5 |
|
|
5720 Series |
Fabric Engine 8.7 |
Power Manager identifies the available power in the chassis (called the power budget), and determines if enough power is available to operate the installed components. Power Manager also gives you control over which module slots to supply power to and enables you to prioritize the slots that should shut down first if there isn‘t enough power available.
If the power usage exceeds the power budget, the system powers off the module with the lowest priority. After a power over-usage occurs, the system uses a Simple Network Management Protocol (SNMP) trap to send a message to the network administrator configured to receive the trap.
The system compares the total chassis power consumed against the total chassis power available, and verifies that if one power supply fails, enough power still remains to operate the chassis and components. If enough power is available to keep all modules powered on in the case of a single failed power supply, then the system is considered to have redundant power.
Note
In a redundant power supply configuration, that is, a +1 configuration where the system has one or more power supplies above the actual requirement, the power management logic automatically employs load-sharing across all active power supplies. This load-sharing ensures that the switch draws power equally from all available power supplies to support the system requirements in a fully active model.
If the system does not have redundant power, then the system sends an SNMP trap to the receiver and a message to CLI to inform you that the device no longer operates in redundant power mode.