Avamar: Backup Fails with "Client Backup Disabled"

A backup is started and immediately fails with "Client Backup Disabled"
 

Access Avamar User Interface (AUI) > Asset Management > select the Domain > select the Client > click VIEW MORE > click Information tab.

The Enabled field shows as "No".
 

This behavior can be seen for some or all clients after a code upgrade or server reboot with a rollback. The root cause is unknown at this moment.

There are three methods to enable the clients:
 

1. Using AUI: Best for enabling a few clients.
2. Using the Avamar Administrator Console: Ideal for enabling multiple clients across different domains.
3. Updating the Management Console Database (mcdb): Suitable for enabling all clients at once.

1. Using AUI:

• Access Avamar User Interface (AUI)
• Go to Asset Management
• Select the Domain
• Select the Client
• Click the three dots in MORE ACTIONS
• Click Edit Client
• Click the Enabled checkbox

• Click UPDATE
• The Enabled column shows the client as "true"

2. Using the Avamar Administrator Console

• Launch the Avamar Administrator console
• Go to Policy
• In the Policy Management tab, select the domain to enable the clients. In the following example, Lab_Clients is selected.
• There are five clients in this domain. The "Backups Disabled" column shows as "Yes", it means that the clients are disabled.

• Select one client and Ctrl + A to select all clients. 

• To select more than one client (not all), select one client and with the Ctrl key pressed, select the other clients

• Click the Edit button
• The following warning appears:

• Click OK to continue:

The "Edit Multiple Clients" window appears. Change the value of "Disable all backups" from Yes to No. Change the drop-down menu from "Don't change" to "Apply change":

• Click OK
• Click the refresh button in the upper right corner
• The "Backups Disabled" column shows as "No", it means that the clients are enabled.

3. Updating the Management Console Database (mcdb)

• This procedure requires a stop and start of Management Console Service (MCS). Ensure that there is a valid MCS flush and a recent checkpoint. The Avamar server must be idle.
• Stop the MCS service and keep the mcdb online:

mcserver.sh --stop && dbmaint.sh --db=on mcdb

• Connect to mcdb:

psql -d mcdb -p 5555

• Run the following command. The command enables all clients except the clients under MC_RETIRED and MC_SYSTEM domain:

update clients set enabled='t' where descr not like '%MC_SYSTEM%' and descr not like '%MC_RETIRED%';

• Exit the mcdb

\q

Start the MCS and Backup Scheduler services.

mcserver.sh --start && dpnctl start sched

• Confirm if the clients are enabled.