My computer can't read the disk you sent.
我的电脑不能读你送来的盘。
Like the previous optimizations, this optimization collects related data on the disk to optimize for sequential Read optimization.
与前面其他优化一样，这个优化在磁盘上收集相关的数据，以实现相邻读优化。
If all the data fits in the cache, then the data is read from disk only once; after that, all requests are satisfied from the cache at memory speed.
如果所有数据都在缓存中，那么只需从磁盘读取一次数据；毕竟，所有的请求都可以用内存速度从缓存中得到满足。
All the sectors on a disk platter that can be read without moving the head constitute a track.
磁盘盘片在无需移动磁头的前提下即可读取的所有扇区组成一个磁道。
If the key is encrypted, you can save the password somewhere on the disk, and read it in when necessary.
如果加密了密钥，您可以在磁盘的某处保存密码，然后在需要的时候读取它。
Because the pages are not read sequentially from the disk, both seek and rotational delays occur before each page can be read.
因为不是从磁盘连续读取页面的，所以在读取每个页面之前，都需要进行查找并存在循环延迟。
We focus on disk reads rather than disk writes, because the majority of disk accesses are for read operations, and the majority of disk bandwidth is used for read operations.
我们关注的是磁盘读取，而不是磁盘写，因为大部分磁盘访问都是为了进行读取操作，且大部分磁盘带宽也用于读取操作。
Because these blocks are contiguous on the disk, there's better read and write performance for them.
由于这些块在磁盘上是连续的，其读取和写入的性能就会更好。
On decryption, each event is written to disk, unencrypted, and the plain text read back in to be displayed to the user.
在解密阶段，每个事件都被写到磁盘上，然后进行解密，最后读回纯文本并显示给用户。
Another problem I see in RCP applications is what I call image burn, which occurs when an image is frequently read from disk and disposed.
我在RCP应用程序中观察到的另一个问题被我称为映象燃烧，当从磁盘频繁读取一个映象然后丢弃时该问题就会发生。
The next time the data on that page is requested, it need not be read from disk again.
下次请求该页上的数据时，就不需要再从磁盘进行读取该页。
Now, large spreadsheets or large documents could be read in from the disk and held in RAM memory for fast access and manipulation.
现在大型电子数据表或大型电子文件可以在光盘里读取，还可以通过快捷操作把它们放到内存中。
After removing any existing rotated images, the number of tiles saved on disk is read.
在删除所有现有的已旋转图像之后，将读取那些保存在磁盘上的块。
Does one form of persistence result in XML documents on disk that are easier to read, use, consume, or send to another application?
有没有一种持久性存储方法可以在磁盘上生成易于读取、使用并能发送给其他应用程序的XML文档呢？
So at least 653 pages would need to be read from disk if the rows were distributed in such an ideal way that only rows accessed by the query are to be found on the loaded pages.
所以，如果这些行以理想的方式分布，要使得只有被查询访问的行可以在装载的页上找到，那么至少需要从磁盘读653个页。
To improve performance, stylesheets read from disk are cached in memory - the node does not cache stylesheets that are supplied in the input message.
为提高性能，从磁盘读取的样式表缓存在内存中——节点不能缓存输入消息提供的样式表。
As a result, data is continually written and read from disk rather than from main memory, which is very detrimental to performance.
导致的结果是不断地从磁盘而非主内存读写数据，这是影响性能的重要限制因素。
Listing 6 shows how to determine how many blocks were read from disk versus those from memory.
清单6显示了如何确定有多少块是从磁盘中读取的，以及有多少块是从内存中读取的。
This buffer caches JMS message data that may otherwise need to be read from disk.
该缓冲区缓存原本需要从磁盘读取的JMS消息数据。
Things are quite different with LOBs, which are always read directly from disk.
而对于 LOB 则截然不同，它总是直接从磁盘读取。
Loss of data - Data cannot be written to or read from a disk because of a logical or physical problem.
由于逻辑或物理问题，数据无法写入磁盘或无法从磁盘读取。
The high probability of a disk read being necessary for each insert makes this scenario prone to poor performance.
对于每次的insert，需要读磁盘的概率如此之高，使得这种场景往往性能很差。
Memcached is used by many large sites to cache various objects in a distributed memory system, rather than having to read from disk or a database.
许多大型站点都使用memcached在分布式内存系统中缓存各种对象，这样就不需要从磁盘或数据库读取它们。
A web server's underlying operating system will cache files that were recently read from disk in physical memory.
Web服务器的基本操作系统将在物理内存中缓存最近从磁盘读取的文件。
The source Linux kernel tarball was stored on another disk, and for read tests, output was directed to /dev/null.
源Linux内核原始码存储在另一个磁盘上，对于读测试，输出指向 /dev/null。
To ensure the durability of events and actions, Business events can persist or read data from disk at several points during event processing.
为了确保事件和动作的持续性，BusinessEvents可以执行持久化操作或在事件处理过程中的几个不同时间点从磁盘读取数据。
When MySQL must perform a sort, it allocates a sort buffer to store the rows as they're read from disk.
当MySQL必须要进行排序时，就会在从磁盘上读取数据时分配一个排序缓冲区来存放这些数据行。
The large spike in the I/O Bytes History graph represents the disk I/O required to read the 14MB file.
I/OBytesHistory图表中的大型峰值表示磁盘 I/O要读取那个14MB文件。
Page Reads: Number of pages that have been read from disk
PageReads：从磁盘读取的页面数量
Log pages read is the number of log pages read from disk by the logger, while log pages written is the number of log pages written to disk by the logger.
日志页面读(logpagesread)是日志记录器(logger)从磁盘读取的日志页面的数目，而日志页面写(log pages written)是日志记录器(logger)写入磁盘的日志页面的数目。
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