[备份软件] bakbone 脚本备份问题！

[weixin_38056418]

用脚本备份oracle数据库，请问一下format ‘<variable_1>：<variable_2>：〈variable_3>：:%d_$s_%t'中的variable_2参数是什么啊!
官方文档是这么说的!
<Variable_2> :The Target Set Name - This applies to a Target Set created
for use with Oracle RMAN backups, in order to target a specific device during backup. If NetVault’s default setting of
“Any Device” is to be used (i.e., the backup will target any available device). This variable can be left out.