Disaster Recovery (Backup and Restore)

This chapter contains the following sections:

Backup and Restore Cisco DCNM and Application Data on Standalone DCNM setup

You can take a backup of Cisco DCNM application data for analytics and troubleshooting.

Perform the following task to take a backup of Cisco DCNM and Application data.

Procedure

Step 1

Logon to the Cisco DCNM appliance using SSH.
Step 2

Take a backup of the application data using the appmgr backup command. 

dcnm# appmgr backup

Copy the backup file to a safe location and shut down the DCNM Appliance.
Step 3

Right click on the installed VM and select Power > Power Off.

Step 4

Deploy the new DCNM appliance.
Step 5

After the VM is powered on, click on Console tab.

A message indicating that the DCNM appliance is configuring appears on the screen.

Copy and paste the URL to the browser to continue with restore process.
Step 6

On the DCNM Web Installer UI, click Get Started.

Step 7

On the Cisco DCNM Installer screen, select Fresh Installation with backup file for restore radio button.

Select the backup file that was generated in Step Step 2.

Continue to deploy the DCNM.
Step 8

On the Summary tab, review the configuration details.

Click Previous to go to the previous tabs and modify the configuration. Click Start Installation complete Cisco DCNM Virtual Appliance Installation for the chosen deployment mode.

A progress bar appears showing the completed percentage, description of the operation, and the elapsed time during the installation.

After the progress bar shows 100%, click Continue.

Step 9

After the data is restored, check the status using the appmr status all command.

Backup and Restore Cisco DCNM and Application Data on Native HA setup

Perform the following task to take perform backup and restore of data in a Native HA setup.

Before you begin

Ensure that the Active node is operating and functional.

Procedure

Step 1

Check if the Active node is operational. Otherwise, trigger a failover.
Step 2

Logon to the Cisco DCNM appliance using SSH.
Step 3

Take a backup of the application data using the appmgr backup command on both Active and Standby appliances. 

dcnm1# appmgr backup
dcnm2 appmgr backup

Copy the backup file of both active and standby appliances to a safe location and shut down the DCNM Appliance.
Step 4

Right click on the installed VM and select Power > Power Off.

Step 5

Deploy the new DCNM appliance in Native HA mode.
Step 6

For both the Active and Standby appliances, after the VM is powered on, click on Console tab.

A message indicating that the DCNM appliance is configuring appears on the screen.

Copy and paste the URL to the browser to continue with restore process.
Step 7

On the DCNM Web Installer UI, click Get Started.

Step 8

On the Cisco DCNM Installer screen, select Fresh Installation with backup file for restore radio button.

Select the backup file that was generated in Step Step 3.

The values for parameters are read from the backup file, and auto-populated. Modify the values, if required.

Continue to deploy the DCNM.
Step 9

On the Summary tab, review the configuration details.

Click Previous to go to the previous tabs and modify the configuration. Click Start Installation complete Cisco DCNM Virtual Appliance Installation for the chosen deployment mode.

A progress bar appears showing the completed percentage, description of the operation, and the elapsed time during the installation.

After the progress bar shows 100%, click Continue.

Step 10

After the data is restored, check the status using the appmr status all command.