数据磁盘，使用RAID0SCSI控制器。
我们推荐数据磁盘使用改进的RAID1。
专属备用磁盘临时接管发生故障的数据磁盘。
A dedicated spare drive temporarily takes over for a failed data drive.
自动替换磁盘将永久接管发生故障的数据磁盘。
An auto replace drive will permanently take over for a failed data drive.
不推荐对数据磁盘使用RAID0，因为它没有容错功能。
RAID 0 is not recommended for data disks since it has no fault tolerance features.
替换发生故障的数据磁盘后，备用磁盘再次变为空闲状态。
When the failed data drive is replaced, the spare drive becomes idle again.
自动替换磁盘的优势在于发生故障的数据磁盘中的信息仅需恢复一次。
The advantage of auto replace drives is that the information in the failed data drive only has to be recovered once.
一旦数据磁盘发生故障，备用磁盘即变成数据磁盘并且数据磁盘变成备用磁盘。
As soon as a data drive fails, the spare drive becomes a data drive and the data drive becomes a spare drive.
使用最新的软件可能会帮助您解决这些问题，例如可以将传统磁盘作为启动磁盘使用，将新技术磁盘仅作为数据磁盘使用（/dev/sdb或更高）。
Using the latest software may help you work around problems, as may using a conventional disk as the boot disk, restricting your new-technology disk to use as a data disk (/dev/sdb or higher).
磁盘如果过载，数据就会出错。
磁盘上这些模式化的带电小粒子代表了计算机使用的二进制数字系统中的单个数据位。
A patterned series of these tiny charged berries on the disk represents a single bit of data in the binary number system used by computers.
你可以在几秒钟内将数据转存到磁盘上。
苹果DOS 3.1每个磁盘条使用13个扇区的数据。
使用零拷贝的应用程序要求内核直接将数据从磁盘文件拷贝到套接字，而无需通过应用程序。
Applications that use zero copy request that the kernel copy the data directly from the disk file to the socket, without going through the application.
为数据和日志使用高速磁盘。
一些请求将数据存储到磁盘上以供后续请求使用。
Some requests dump data onto disks for further usage by subsequent requests.
根据内存数据原则，您可以通过将数据从磁盘移动到内存极大地提高性能。
By the data in memory principle, you can dramatically increase performance by moving the data from disk to memory.
可以通过表空间快照来决定是否将数据真正写入磁盘。
You can use table space snapshots to determine if the data is ever actually written to disk.
这些资源包括物理数据库的磁盘资源、网络资源和数据库服务器资源。
These resources include the disk resources of the physical database, the network resources, and the database server resources.
最常见的情况是等待磁盘返回数据。
确保所有数据均在磁盘卷对之间同步，并且处于全双工状态，如清单17所示。
Ensure all data is synchronized between the disk volume pairs and are in a full-duplex state, as shown in Listing 17.
跨多个磁盘的数据丢失：在这种情况下，不仅一个磁盘而是多个磁盘均遭遇了数据丢失。
Loss of data across multiple disks - in this instance, it is not just one disk that has encountered a loss of data but a number of disks.
不仅不可能同时将多个数据块写入磁盘，而且每当进行修改时马上将每个数据块写入磁盘，也对系统性能有不利影响。
Not only is it impossible to write multiple data blocks to disk simultaneously, but writing every data block to disk when any part of it changes would be bad for system performance.
虽然磁盘上的数据没有损失，但是无法访问该磁盘。
The data on the disks is not compromised, but the disks cannot be accessed.
因此，无需将要编辑的数据存储在磁盘上的文件中。
So, you don't need to have the data to be edited stored in a file on disk.
惟一的问题是，对于已经有数据的磁盘，手册上没有单独的指令。
The only problem was, the handbook didn't include separate instructions for attaching a disk that already had data on it.
如果大部分数据位于磁盘，您应该如何扩展应用程序使其不用等待从较慢的磁盘中获取数据？
Given that most data lives on disk, how do you scale applications so they are not ultimately waiting on getting data to and from slow disks?
当BLOB数据被写到数据库的时候，数据没有被缓存而是直接写到磁盘，这使得数据所在的磁盘速度变得很重要。
When BLOB data is written to a database, the data is not buffered but is written straight to disk, making the speed of the disk on which the data is located important.
磁盘上数据的状态可能不可用，因为捕获快照时，磁盘上的数据被视为处于崩溃一致状态。
The state of the data on a disk may not be useable because when the snapshot was taken the data on the disk was considered to be crash consistent.
也就是说，恢复到快照的磁盘上的数据与操作系统崩溃前磁盘上的数据接近。
In other words, the data on a disk that is restored to a snapshot looks like the data on a disk after an operating system crash.
应用推荐