Virtualization functions or services that are not in the data path. Examples are functions related to meta data, the management of data or storage, security management, backup of data, etc.

• 数据通路之外的虚拟化功能或服务。例如，与元数据相关的功能、数据或者存储的管理、安全管理以及数据备份等都是带外虚拟化的例子。