When NetBackup Flex Scale is configured, the size of NetBackup logs might exceed the /log partition size

NetBackup hosts have the capability to manage their log retention by configuring the Keep logs up to GB option. This option specifies the size of the NetBackup logs that you want to retain. When the log size grows to this value, the older logs are deleted.

When NetBackup Flex Scale cluster is configured, one of the cluster nodes always has both the NetBackup primary server and media roles. Additionally, the NetBackup primary is highly available and can failover to another node in the cluster. So either of the cluster nodes can have both primary and media roles. The cluster nodes share the logging storage with NetBackup hosts. However, the cluster nodes have their own logging configuration and the log retention configured for the NetBackup hosts is not enforced. (4008252)

Workaround:

The combined size configured for the hosts with NetBackup primary and media role must be less than the maximum storage set aside for the log partition. Set the Keep logs up to GB option of these hosts accordingly. The Keep logs up to GB option is available on the NetBackup Administration Console > NetBackup Management > Host Properties > Loggingdialog box (corresponds to the KEEP_LOGS_SIZE_GB property in the bp.conf file).