How to achieve power supply redundancy for PA-5450 and PA-7000 series firewalls

• Achieve power redundancy for PA-5450 and PA-7000 series

• PA-5450
• PA-7000
• Power Supply

1. Check the inserted cards in the chassis using CLI command:

   show chassis inventory

   Example of the output is shown below:

   > show chassis inventory
   Slot       Component            Serial Number   Ports  Revision  Power (w)
              Chassis              019901000748           1.0
              PA-5400-BC-A         019301000763    0      1.2       195
   
   1          PA-5400-NC-A         019401000749    26     1.1       100
   2          PA-5400-NC-A         019401000677    26     1.1       100
   3          PA-5400-DPC-A        020401001317    0      1.0       335
   4          PA-5400-DPC-A        020401001358    0      1.0       335
   5          empty
   6          empty
   7          PA-5400-MPC-A        019501000571    0      1.0       152
   
   FANTRAY1   PA-5450-FAN          019801001483           1.0       160
   FANTRAY2   PA-5450-FAN          019801001461           1.0       160
   FANTRAY3   PA-5450-FAN          019801001478           1.0       160
   FANTRAY4   PA-5450-FAN          019801001467           1.0       160
   
   PS1        Not Present
   PS2        Not Present
   PS3        PAN-PWR-2200W-AC     7R2105RB0199           RB        2200 (+)
   PS4        PAN-PWR-2200W-AC     7R2105RB0058           RB        2200 (+)
   

2. If you have a PA-5450 then knowing the power input, check how many DPC cards are inserted in the chassis then use the table below to know what is the minimum number of required power supplies:

3. If you have a PA-7000 series then knowing the power input, check how many NPC cards are inserted in the chassis and use the table below to know what is the minimum number of required power supplies:

 

3. To achieve full power redundancy, install double the minimum number of power supplies required:
   1. In the example above the PA-5450 has two DPC cards and the input power is 240 VAC then the minimum number of power supplies is one PAN-PWR-2200W-AC; To achieve full redundancy two Power Supplies: PAN-PWR-2200W-AC are needed which means in the example above PA-5450 has full power redundancy.

Important to note:
For PA-5450: If you connect 120VAC power and you install three, four or five DPCs then you can configure only partial redundancy. Full redundancy is not possible because the chassis do not hold twice the minimum number of active 120VAC power supplies required to power the chassis and these numbers of DPCs. 

For PA-7000: If you connect 120VAC power and you install five or six NPCs in a PA-7050 firewall or ten NPCs in a PA-7080 firewall, you can configure only partial redundancy. Full redundancy is not possible because the chassis do not hold twice the minimum number of active 120VAC power supplies required to power the chassis and these number of NPCs.

If needed, then use the table below to find the power input:



The maximum number of power supplies that can be installed per module:

For more information, refer to the documents below:

How to Detect a Bad Power Supply Unit or Bad Power Adapter
Determine-pa-5450-firewall-power-configuration-requirements
Determine-pa-7000-series-firewall-power-configuration-requirements
Determine Power Requirements of the PA-7500 Series Firewalls