Configuring Internal Power Supplies

Restrictions for Internal Power Supplies

  • Power Supply configuration is not supported on C9500-32C, C9500-32QC, C9500-48Y4C, and C9500-24Y4C models of the Cisco Catalyst 9500 Series Switches. Use the show environment status command to check the power supply status.

  • For C9500-32C, the power supply with serial number starting with POG has two fans and the power supply with serial number starting with QCS has a single fan. See Configuration Examples for Internal Power Supplies.

Information About Internal Power Supplies

See the device installation guide for information about the power supplies.

How to Configure Internal Power Supplies

Configuring Internal Power Supply


Note

Power Supply configuration is not supported on C9500-32C, C9500-32QC, C9500-48Y4C, and C9500-24Y4C models of the Cisco Catalyst 9500 Series Switches.

Use the show environment status command to check the power supply status.

You can use the power supply EXEC command to configure and manage the internal power supply on the device. The device does not support the no power supply EXEC command.

Follow these steps beginning in user EXEC mode:

Procedure

  Command or Action Purpose

Step 1

power supply switch_number slot {A | B } { off | on }

Example:


Device# power supply 1 slot A on

Sets the specified power supply to off or on by using one of these keywords:

  • A —Selects the power supply in slot A.

  • B —Selects power supply in slot B.

    Note

     

    Power supply slot B is the closest to the outer edge of the device.

  • off —Set the power supply off.

  • on —Set the power supply on.

By default, the device power supply is on.

Step 2

show environment power

Example:


Device# show environment power

Verifies your settings.

Monitoring Internal Power Supplies

Table 1. Show Commands for Power Supplies

Command

Purpose

show environment power [ all | switch switch_number ]

(Optional) Displays the status of the internal power supplies for the specified device. .

The device keywords are available only on stacking-capable devices.

Note

 

This command is not applicable to the C9500-32C, C9500-32QC, C9500-48Y4C, and C9500-24Y4C models of the Cisco Catalyst 9500 Series Switches.

Configuration Examples for Internal Power Supplies

This example shows the sample output of show environment status command when a power supply with serial number starting with QCS is installed into C9500-32C switch. In this example, the second fan displays the state as N/A because the power supply with serial number starting with QCS has a single fan. 

Device# show inventory

NAME: "Chassis", DESCR: "Cisco Catalyst 9500 Series Chassis"
PID: C9500-32C         , VID: V00  , SN: CAT2202L2M5

NAME: "Power Supply Module 1", DESCR: "Cisco Catalyst 9500 Series 1600W AC  Power Supply"
PID: C9K-PWR-1600WAC-R , VID: V01  , SN: QCS2230500J
Device# show environment status

Power                                   Fan States
Supply  Model No              Type  Capacity  Status     0     1
------  --------------------  ----  --------  ---------  -----------
PS1     C9K-PWR-1600WAC-R     AC    1600 W    ok         good  N/A

This example shows the sample output of show environment status command when a power supply with serial number starting with POG is installed into C9500-32C switch. In this example, the second fan displays the state as good because the power supply with serial number starting with POG has a two fans. 

Device# show inventory

NAME: "Chassis", DESCR: "Cisco Catalyst 9500 Series Chassis"
PID: C9500-32C         , VID: V01  , SN: CAT2344L1N8

NAME: "Power Supply Module 0", DESCR: "Cisco Catalyst 9500 Series 1600W AC  Power Supply"
PID: C9K-PWR-1600WAC-R , VID: V01  , SN: POG2319D04K
Device# show environment status

Power                                   Fan States
Supply  Model No              Type  Capacity  Status     0     1
------  --------------------  ----  --------  ---------  -----------
PS0     C9K-PWR-1600WAC-R     AC    1600 W    ok         good  good

This example shows how to set the power supply in slot A to off:


Device# power supply 1 slot A off
Disabling Power supply A may result in a power loss to PoE devices and/or switches ... Continue? (yes/[no]): yes 
Device#
Jun 10 04:52:54.389: %PLATFORM_ENV-6-FRU_PS_OIR: FRU Power Supply 1 powered off 
Jun 10 04:52:56.717: %PLATFORM_ENV-1-FAN_NOT_PRESENT: Fan is not present
Device#

This example shows how to set the power supply in slot A to on:


Device# power supply 1 slot A on
Jun 10 04:54:39.600: %PLATFORM_ENV-6-FRU_PS_OIR: FRU Power Supply 1 powered on

This example shows the output of the show env power command:

Table 2. show env power Status Descriptions
Field Description

OK

The power supply is present and power is good.

Not Present

No power supply is installed.

No Input Power

The power supply is present but there is no input power.

Disabled

The power supply and input power are present, but power supply is switched off by CLI.

Not Responding

The power supply is not recognizable or is faulty.

Failure-Fan

The power supply fan is faulty.

Additional References for Internal Power Supplies

Related Documentation

Related Topic Document Title

For complete syntax and usage information for the commands used in this chapter.

Command Reference (Catalyst 9500 Series Switches)

For information about the power supplies.

Cisco Catalyst 9500 Series Switches Hardware Installation Guide

Feature History for Internal Power Supplies

This table provides release and related information for features explained in this module.

These features are available on all releases subsequent to the one they were introduced in, unless noted otherwise.

Release

Feature

Feature Information

Cisco IOS XE Everest 16.5.1a

Internal Power Supplies

The switch operates with power supply modules which could be AC, DC or both. Refer the Hardware Installation Guide for more details on power supply units.

Support for power supply configuration was introduced only on the C9500-12Q, C9500-24Q, C9500-16X and C9500-40X models of the Cisco Catalyst 9500 Series Switches.

Use Cisco Feature Navigator to find information about platform and software image support. To access Cisco Feature Navigator, go to http://www.cisco.com/go/cfn.