单词DASD
n.: 直接取数记忆装置；直接存取存储器
网络: 直接访问存储设备(direct access storage device)；直接存取储存装置；直接访问存储设备上
直接存取存储器
直接取数记忆装置
The more often that the data requested by applications is in memory rather than out on DASD, the better overall performance will be.
应用程序所请求的数据出现在内存中（而不是外面的DASD上）的概率越大，总体性能就越好。
DASD is cheap, and the time on the wire might be only a small part of the total time in the process.
DASD是便宜的，并且线路上的时间可能仅是过程中总时间的一小部分。
The term DASD applies to disks or to simulated equivalents of disks and magnetic drums.
术语DASD指代磁盘或者其他磁盘的模拟替代物和磁鼓。
The total direct access storage device (DASD) attached to this physical system, through its various fiber channels, was well over 200 TB.
通过不同光纤连接到这个物理系统上的直接访问存储设备（DASD）加起来超过200TB。
A storage group is a set of volumes on a physical storage device, DASD (direct access storage devices) on the mainframe.
存储组是大型机上物理存储设备DASD（直接访问存储设备）上的一组卷。
This saves you from using up a real device and on DASD tracking and management.
这可以防止用完实际的设备，同时节省DASD跟踪和管理的开销。
Partitioned data sets are mostly used to store application programs and JCLs. They can only be stored on DASD.
分割数据集通常用来存储应用程序和。
Let"s simulate this scenario, assuming that objects stay six months in DASD, three years in external storage, and seven years in tapes.
让我们来模拟一下这个场景，假设对象在DASD中存储6个月，在外部存储中存储3年，在磁带中存储7年。
In other words, end users will not realize where the document is sitting, either DASDs, external disk, or tape.
换句话说，终端用户不会意识到文档究竟位于何处——DASD、外部磁盘或者是磁带。
We distributed the DASD for the user mail boxes over these mount points.
我们将用于用户邮件箱的DASD分布在这些挂载点上。