Managing an eBackup Server

Context

HA refers to that active and standby modules work in hot or cold backup mode to implement specific functions. After the active module is faulty, the standby module automatically takes over the role of the active module to implement system functions, improving system reliability.

To enable eBackup to support the HA function, plan at least two eBackup servers. Initialize one as the backup server, and the other servers as backup proxies. By default, eBackup does not support the HA function. You need to set HA parameters to configure eBackup as an HA system. After the configuration, the backup server and one backup proxy work in active/standby mode. After the backup server fails, the backup proxy takes over the role of the backup server to ensure normal system operation.

Procedure

1. On the navigation bar, choose > Server.
2. Optional: In the upper right corner, set the search criteria and click to search for the desired server.
3. View information about the server. Table 1 describes related parameters.

   Table 1 Server parameters

   Parameter	Description
   ID	The only identification of the server in eBackup backup management system.
   Accessibility Status	Status of the server. The value can be: Accessible The communication between the backup server and backup proxies is normal and backup and restoration services run correctly. Inaccessible The backup server communicates with backup proxies through heartbeat to check the status of backup proxies. If the backup server cannot detect a backup proxy in a specific period of time, the status of the proxy is changed to inaccessible.
   Register Status	Registry status of the server. The value can be: Registered After the backup server and backup proxies are deployed at eBackup backup management system, they are automatically registered with eBackup backup management system. Unregistered If you manually unregister a backup proxy, Register Status of the server changes to Unregistered. If you want to use the backup proxy to perform backup and restoration jobs, register it with eBackup backup management system.
   Backup Management Plane IP Address	Backup management plane IP address of the server.
   Internal Communication Plane IP Address	Internal communication plane IP address of the server.
   Role	The eBackup server has two roles: Backup server As the control center of eBackup backup management system, the backup server is responsible for scheduling and monitoring backup and restoration jobs, managing backup storage, backup proxies, and production systems, and processing and responding to users' operations. The backup server also provides the functions of a backup proxy. Backup proxy Backup proxies are responsible for receiving backup and restoration jobs delivered by the backup server and interacting with production systems and backup and restoration systems to perform backup and restoration jobs.
   NTP Time Synchronization Status	Status of time consistency between the backup proxies and backup server. The value can be Synchronized, Unsynchronized or Unknown. If the state of a backup proxy is Unsynchronized, users can click the backup proxy and click Synchronize Time in the right information pane to keep time consistency between the backup proxy and backup server. If the backup proxy is restarted or newly registered, the state may become Unknown. In this case, users need to wait for the system to automatically synchronize the time of the backup proxy.
   iSCSI initiator name	iSCSI initiator name of a server.
   UltraPath software installed or not	Whether UltraPath is installed.
   Management plane floating IP address of FusionStorage Manager	Management plane floating IP address of FusionStorage Manager of the FusionStorage cluster to which the server is added.

   

   The backup server can serve as a backup proxy. To enable users to conveniently view and manage this function, an independent message related to this function will be displayed on the user interface.

4. Register or unregister backup proxies.
   

   You cannot register or deregister the backup server configured with HA or associated with backup proxies.

   • Registering a selected backup proxy

     Select a backup proxy whose Accessibility Status is Accessible and Register Status is Unregistered and use either of the following methods to register the proxy:

     • Click Register in the upper left area of the server list and click OK in the Warning dialog box that is displayed.
     • Click in the preview area on the right and click OK in the Warning dialog box that is displayed.
   • Registering all backup proxies

     eBackup backup management system supports batch registering of all backup proxies, improving configuration efficiency. Click Register All and click OK in the Confirm dialog box that is displayed. Then the system executes the command to batch register backup proxies whose Accessibility Status is Accessible and Register Status is Unregistered.

   • Unregistering a selected backup proxy

     Select a backup proxy whose Register Status is Registered, Click in the preview area on the right and click OK in the Warning dialog box that is displayed.

   

   Before unregistering a backup proxy whose Accessibility Status is Inaccessible and Register Status is Registered, ensure that the server meets one of the following requirements:

   • The server is shut down.
   • The server is started and all the storage units on the server are unmounted. You can run mount |grep /opt/huawei-data-protection/ebackup/bricks to check whether there are mounted storage units. If yes, run umount /opt/huawei-data-protection/ebackup/bricks to unmount the storage units.

   After unregistering a backup proxy whose Accessibility Status is Accessible and Register Status is Registered, ensure that all the storage units on the server are unmounted. You can run mount |grep /opt/huawei-data-protection/ebackup/bricks to check whether there are mounted storage units. If yes, run umount /opt/huawei-data-protection/ebackup/bricks to unmount the storage units.

   After unregistering a backup proxy (including unmounting the storage units), stop the eBackup service and uninstall the eBackup software to ensure that the backup proxy will not automatically connect to the backup server subsequently. If you want to use the backup proxy subsequently reinstall the eBackup software and configure the backup proxy again.

5. Optional: Set HA parameters if you want to configure eBackup as an HA system.
   

   eBackup can be configured as an HA system only when there are at least two eBackup servers in the system, that is, there is at least one independent backup proxy server.