DES-3128 Sample Questions Answers

 In a NetWorker environment, the daily scheduled backup will fail if there are no appendable volumes that match the pool. This can happen if all the volumes in the pool have already been used up, and there are no new volumes to append the data to.

References: [1] https://www.dell.com/support/manuals/us/en/04/dell-emc-networker-9-2/emc-networker-9.2.1.5/managing-pools-and-volumes?guid=guid-d2b5f7d2-c2f1-4e14-b70d-fefa9b8f7f1f &lang=en-us [2] https://www.dell.com/support/article/en-us/sln299633/dell-emc-networker-volume-pools?lang=en

A datazone is a NetWorker component composed of a single NetWorker Server, its clients, and storage nodes. It is used to define a group of systems and storage nodes that will share the same configuration. The media pool, save set, and protection group are all related to NetWorker, but they are not components of a datazone.

References: [1] https://www.veritas.com/support/en_US/article.100039961  [2] https://en.wikipedia.org/wiki/NetWorker

Network Data Management Protocol (NDMP) is the technology used for backup and recovery with NetBackup Media Manager (NMM). NDMP is used to transfer data between the NetBackup server and the storage device.

References: [1] https://www.veritas.com/support/en_US/article.100023683  [2] https://en.wikipedia.org/wiki/Network_Data_Management_Protocol

The rap log on a NetWorker server is used to audit recent resource changes, and if the file is empty, it is likely because the Monitor RAP attribute on the NetWorker server is disabled. This attribute must be enabled in order for the rap log to be updated. The other options are not related to the cause of the issue.

References: [1] https://www.veritas.com/support/en_US/article.100030265  [2] https://en.wikipedia.org/wiki/NetWorker

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.

To configure an AFTD device on "StorageNodeA" with the name "OracleBackup" using the folder "D:\AFTD" to the pool "Default", the administrator can use the Data Domain CLI (Command Line Interface) to access the Data Domain system and create the AFTD device. Here are the steps:

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

ssh admin@StorageNodeA

• Once logged in, create a new AFTD device named "OracleBackup" by entering the following command:

ddboost afd create --name OracleBackup --pool Default --folder D:\AFTD

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

ddboost afd show --name OracleBackup

• To make sure that the Oracle backups only use the specific storage node, you can assign the AFTD device to the Oracle backup host by running the following command:

ddboost afd set --name OracleBackup --host OracleBackupHost

• Verify the configuration by running the following command:

ddboost afd show --name OracleBackup

• To make sure that the StorageNodeA is a dedicated storage node, you can configure the storage node to only allow the OracleBackup host to use the AFTD device by running the following command:

ddboost host access add --host OracleBackupHost --afd OracleBackup

Finally, the administrator should select the “Apply” button to save the configuration.

References: [1] https://www.delltechnologies.com/en-us/storage/powerprotect-dd/documentation.htm#Configuration_Guide