Accounting指跟踪用户消耗的NAS资源. 这个信息可以用于管理, 计划, 计费, 或者其他用途.
Accounting中采集的典型信息是用户的身份, 服务传递的本质, 何时服务开启, 何时服务关闭.
Real-time accounting指的是资源消耗的同时accounting信息被传递.
Batch accounting refers to accounting information that is saved until it is delivered at a later time.