To create the desired configuration, you will need to use the Data Domain CLI (Command Line Interface) to access the DD Boost device and create the new appliance. Here are the steps:

• Log in to the Data Domain CLI by entering the following command:

ssh ddboost@DD0

• Enter the password "abc123" when prompted.
• Once logged in, create a new DD Boost device named DD01.SU01 by entering the following command:

ddboost device create --name DD01.SU01 --type vmware --pool DO.VMware_Pool

• Verify that the new device has been created by running the following command:

ddboost device show --name DD01.SU01

• Configure the DD Boost device to connect to the PowerProcted DO series appliance by running the following command:

ddboost device set --name DD01.SU01 --dd-host DD0

• Verify the configuration by running the following command:

ddboost device show --name DD01.SU01

The steps to create a client "ABO" to back up critical volumes for disaster recovery and to use the feature that allows for a single high-density file system to be split into multiple concurrent save sets are as follows:

• Create the client:

• On the NetWorker server, open the NetWorker Management Console.
• Go to the Clients tab.
• Click on the Add button.
• In the Client Name field, enter "ABO".
• In the Client Address field, enter the IP address or hostname of the client.
• In the Platform field, select the appropriate platform for the client.
• Click on the OK button to create the client.

• Configure the client:

• Go to the Clients tab.
• Click on the ABO client.
• Go to the File Systems tab.
• Click on the Add button.
• In the File System field, enter the path of the critical volume that needs to be backed up.
• In the Save Set field, enter a name for the save set.
• Check the Include all blocks that are in use option. This will ensure that all blocks that are in use in the file system are backed up.
• Click on the OK button to add the file system.

• Configure the save set:

• Go to the Clients tab.
• Click on the ABO client.
• Go to the Save Sets tab.
• Click on the save set that you just created.
• Go to the Advanced tab.
• In the Save Set Options field, enter "PSS:streams_per_ss=6". This tells NetWorker to split the save set into 6 concurrent save sets and send them simultaneously in a backup.
• Click on the OK button to save the changes.

• Schedule the backup:

• Go to the Clients tab.
• Click on the ABO client.
• Go to the Schedules tab.
• Click on the Add button.
• Select the appropriate schedule for the backup.
• In the Save Set field, select the save set that you just created.
• Click on the OK button to schedule the backup.

The steps to resolve the issue of the client "ClientAB" not being in the backup server's clients list are as follows:

• Verify the client name:

• On the NetWorker server, open the NetWorker Management Console.
• Go to the Clients tab.
• Verify that the client "ClientA" is present in the list of clients.
• Verify that the client "ClientAB" is not present in the list of clients.

• Update the client name:

• On the NetWorker server, open the NetWorker Management Console.
• Go to the Clients tab.
• Click on the ClientA.
• In the Client Name field, update the name to "ClientAB"
• In the Client Address field, enter the IP address or hostname of the client.
• Click on the OK button to save the changes.

• Re-schedule the backup

• Go to the Clients tab.
• Click on the ClientAB.
• Go to the Schedules tab.
• Remove the current schedule and create a new schedule for the client.
• Select the appropriate schedule for the backup.
• In the Save Set field, select the save set that you need to backup.
• Click on the OK button to schedule the backup.

• Monitor the backup process

• Monitor the backup process to ensure that it is running successfully.
• Check the logs for any errors.