At the same time, other threads can access disk files or get data from a communications port.
同时，其他的执行绪可以存取磁碟档案或从通讯连接埠取得资料。
Just two years earlier, IBM had also developed the first random access disk storage device, the random access Memory for Accounting and Control (RAMAC) 350, so there was a place to store this stuff.
就在两年前，IBM还开发了第一个随机访问磁盘存储设备，RandomAccessMemoryforAccountingandControl (RAMAC) 350，所以有了存放这些东西的地方。
Finally, disk access speed impacts the number of database connections and the speed of database and view openings.
最后，磁盘访问速度影响数据库连接的数量和打开数据库和视图的速度。
Sending a persistent message outside of a transaction, or committing after every message, can lead to delays due to disk access.
将持久性消息发送到事务之外，或者在每条消息之后提交，都可能由于磁盘访问而导致延迟。
In many cases, a separate disk access must be made to fetch the page for each row located through an index.
大多数情况下，对于通过索引定位的每一行，都必须进行单独的磁盘访问来读取该页。
Having the images on disk makes them easy to access and faster to load than using physical media.
与使用物理介质相比，把映像放在磁盘上更容易访问，可以更快地装载它们。
Therefore, if the core search services of these JVMs are used to access the same data on disk, the data can become corrupted.
因此，如果将这些JVM的核心搜索服务用于访问磁盘上相同的数据，则该数据可能会被损坏。
With sequential access, the disk head can move directly to the next available track on the disk.
使用顺序访问，磁盘头可以直接移动到磁盘的下一个可用磁道。
These units do not translate directly to time; they represent relative time for a typical disk access.
这些单元不直接转换成时间；它们表示的是典型磁盘访问的相对时间。
Under normal circumstances, a write request is written directly to cache and incurs no delay because physical disk access is not required.
在正常的环境中，一个写请求是直接写入到缓存中而不会引起延迟的，因为它不需要访问物理磁盘。
The primary server has write access to a disk or disk array, while all SDS servers have read-only access.
主服务器拥有对一个磁盘或磁盘阵列的写访问权，而所有SDS服务器则仅拥有只读访问权。
This feature eliminates the need to switch access to the disk from one server to the other.
该功能免除了将磁盘访问从一台服务器切换至另一台的需要。
Once the hybrid NAS/SAN server grants access permission，clients connect directly to the SAN disk array for high-speed file data transfer.
一旦混合的NAS/SAN服务器授予存取权限，客户机就直接连到SAN磁盘阵列，进行高速文件数据传输。
When you have ample RAM, this provides an excellent way of supporting very fast disk access; unused files will be swapped on to disk.
当您有充足的RAM 时，这提供了支持超快速磁盘访问的理想方法；未使用的文件将交换到磁盘上。
The computer spent most of its time idle while auxiliary operations such as disk access were completing.
在完成辅助操作，例如磁盘访问，的同时，计算机花费大量时间处于空闲状态。
As mentioned above, random access requires the disk head to move randomly over the disk to find the proper data points.
正如上文提到的，随机访问要求磁盘头能随机移动到磁盘上，查找对应的数据点。
When data are contiguous, the time used to access data on the disk is minimized and the database server can read data faster.
当数据连续时，用于访问磁盘上数据的时间最少，数据库服务器可以更快地读取数据。
As a result, the disk access time is much longer when reading data in random order than when reading in sequential order.
因此，与按顺序读取相比，按随机顺序读取数据时的磁盘访问时间要长得多。
The GPFS NSD component provides a method for cluster-wide disk naming and access.
GPFSNSD组件提供一种方法用于集群范围内的磁盘命名和访问。
Memory and CPU based access can provide much lower latency and greater throughput than disk and network based access.
相比基于磁盘和网络的访问，基于内存和CPU的访问能提供更低的延迟和更高的吞吐量。
Much of the tuning to follow, especially that pertaining to the database, focuses on avoiding disk access because of the relatively high latency it incurs.
对磁盘的许多调优(尤其是对于数据库)集中于避免磁盘访问，因为磁盘访问的延迟相当高。
For instance, you can allocate memory for caching, which reduces disk access, or access resources over the network rather than reading off the local disk.
例如，可以为缓存分配内存，这可以减少磁盘访问或通过网络的资源访问。
But if, say, a printer driver suddenly erases the kernel code needed to access the disk drive, the operating system will have part of its brain cut out.
但是，比如一个打印机驱动程序突然把接磁盘驱动所需的核心代码删除掉，操作系统就会出现部分停顿。
Disk access rates and configurations affect the speed of database and view opening and of opening and navigating a collection (view index).
磁盘访问率和配置影响数据库、视图打开和集合导航(查看索引)的速度。
Proponents make the case that disk-oriented approaches to online storage are problematic, do not scale gracefully and while disk capacity has exploded — access latency and bandwidth has not kept pace.
众多支持者认为使用磁盘存储在线数据会产生很多问题，无法实现优雅地可伸缩性，而磁盘容量也会不断膨胀——访问延迟与带宽并非协调一致。
To organize related data close together to minimize disk access times.
将相关数据紧密组织在一起，以最小化磁盘访问时间。
Overall, make sure that the disk space and access rights in your file system allow for proper WebSphere Process Server logging.
应该确保文件系统中的磁盘空间和访问权限支持WebSphereProcessServer日志记录。
MDC is a type of indexing that improves performance by reducing the amount of disk reads needed to access data, and by improving the speed of required disk input and output.
MDC是一种索引化(indexing)类型，它通过减少访问数据时需要的磁盘读取次数，以及通过提高磁盘输入输出所需要的速度来提高性能。
Because the root file system is a file system on a disk, the initrd function provides a means of bootstrapping to gain access to the disk and mount the real root file system.
由于根文件系统是磁盘上的一个文件系统，因此initrd函数会提供一种启动方法来获得对磁盘的访问，并挂载真正的根文件系统。
The Linux kernel must be able to parse GPT data structures in order to provide access to the partitions the disk contains.
Linux必须能够解析gpt数据结构，以便对磁盘包含的分区提供访问。
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