There is a new environment variable in Netbackup 7.6 called NB_ORA_PLOG. The variable is not documented in Symantec NetBackup 7.6 for Oracle Administrator’s Guide.
My curiosity never the less wanted an answer to what the new variables was used for. This is the answer I got:
NB_ORA_PLOG parameter is a NetBackup internal mechanism to identify the progress log to be shared/referenced by multiple processes involved in template/Guided Recovery/Intelligent Policy operations. Users should never configure this setting, hence the reason it is not included in the NetBackup for Oracle Admin Guide.
So now you know 🙂