WADS
Wide-area data services describes the convergence of WAFS and WAN optimization techniques to solve the problem of providing remote access to a wide variety of centrally located IT resources over a WAN. Sometimes, WADS is called as WAN optimization controllers.
广域数据服务
广域数据服务（WADS）是融合WAFS和WAN的优化技术，以解决这样一个问题:通过广域网提供远程访问各种各样的集中存放的IT资源。有时，WADS也被称做广域网优化控制器。
Data at Rest
Data at rest is a term that is sometimes used to refer to all data in computer storage while excluding data that is traversing a.network or temporarily residing in computer memory to be read or updated. Data at rest can be archival or reference files that are changed rarely or never; data at rest can also be data that is subject to regular but not constant change. Examples include vital corporate files stored on the hard drive of an employee’s notebook computer, files on an external backup medium, files on the servers of a storage area network (SAN), or files on the servers of an offsite backup service provider. Businesses, government agencies, and other institutions are concerned about the threat posed by hackers to data at rest. In order to keep data at rest from being accessed, stolen, or altered by unauthorized people, security measures such as data encryption and hierarchical password protection are commonly used.
静止数据
静止数据这个术语有时用来指除正在网络上传送的或暂时驻留在计算机内存中准备读出或更新的数据以外的计算机存储设备中的所有数据。静止数据可以是很少或者从来不改变的存档或参考文件，它们也可以是定期但不是经常更改的数据。（静止数据的）例子包括储存在雇员笔记本电脑硬盘上的公司重要文件、外接备份存储介质上的文件、存储区域网（SAN）服务器中的文件、或者异地备份服务提供商服务器上的文件。企事业单位、政府部门和其他机构对黑客给静止数据带来的威胁十分担忧。为了防止静止数据被不法人士存取、窃取或修改，通常采取一些安全措施，如数据加密和分等级的口令保护。
文章来源于领测软件测试网 https://www.ltesting.net/
