Enabling the media server and MSDP engine affinity in the MSDP cluster
In an MSDP cluster environment, both the MSDP engine and the media server can run on the same node. By default, NetBackup does not maintain the relationship between the two. When a backup job runs, the media server transfers the data to one of the MSDP engines. If the media server and MSDP engine are not on the same node, the data is transferred over the network, which may require more network bandwidth.
If you have a concern about the network bandwidth, you can enable the media server affinity setting. By enabling the media server affinity, NetBackup tries to select the media server and MSDP engine on the same node for backup jobs, reducing network traffic.
To enable the media server and MSDP engine affinity
- Run the following command on the NetBackup primary server to enable the setting:
/usr/openv/netbackup/bin/admincmd/nbemmcmd -changesetting -machinename <primary_server> -ALLOW_MEDIA_SERVER_AFFINITY 1
- Run the following command to check the current settings:
/usr/openv/netbackup/bin/admincmd/nbemmcmd -listsettings -machinename <primary_server>