我需要的另一条信息是磁盘信息。
Another piece of information I may require is disk information.
一个有帮助的做法是定期在别处记录下磁盘信息作为比照以防这类事情发生。
It helps to record the disk information somewhere else periodically for comparison in case such a thing occurs.
例如，要获取一台远程主机的磁盘信息，您可以使用下面清单1中的这个命令，并获得相应的输出结果。
For example, to get the disk information for a remote host, you might use the command and get the output in Listing 1 below.
激光磁盘能够贮存大量信息。
光驱是一个包含了大量信息的独立磁盘。
A CD-ROM is a separate disk that contains lots of information.
当你想在磁盘上存储信息时，你可以使用磁粒子。
When you actually wanna store information on disk, you can actually use magnetic particles.
他们常常从存储磁盘中检索一些信息。
DB 2跟踪信息可以存储在内存或磁盘中。
如图10所示，您可以获得不同时间段内关于内存、交换、磁盘使用和度量的类似信息。
As in Figure 10, you can get similar information and memory, swap, disk usage, and measurements over different time periods.
调度节点和执行节点通过一个协议来确保至少它们其中一个要在磁盘上保持那些状态信息。
The scheduling node and the execution node use a protocol that ensures that the state information is kept on disk by at least one of them.
包括所有维护服务器系统的系统信息，以及所有存储在磁盘组件内的数据库数据。
All the system information to maintain the server system, and all databases data are stored within the disk component.
GAB使用这些带或不带功能磁盘心跳的信息，用来代表集群的成员。
GAB USES this information, with or without a functional disk heartbeat, to delegate cluster membership.
提供了新的目录视图，可以返回有关实际为索引和数据分配的磁盘的信息。
New catalog views were provided to return information about the actual disk allocations for indexes and data.
属性函数：提供杂项信息，如文件大小、磁盘使用量等。
Attribute functions: Provide for miscellaneous information such as file size and disk usage.
另一方面，任何一块磁盘不会包含存储数据的全部信息。
On the other hand, no single disk contains the entire information for any bit of data committed.
对于RAID - 1，一个磁盘发生故障时，信息仍然可以通过其他副本获取。
With RAID-1, a disk can fail, and information can still be acquired through the other copy.
未定义的拓扑具有通用性，它提供了关于要包括哪些软件包以及内存和磁盘要求等信息。
The unresolved topology is generic and includes information such as what package to include and requirements for memory and disk.
收集物理磁盘支持的所有虚拟目标设备的PVID和LUNID信息。
Collect PVID and LUNID information for all the Virtual target devices backed by physical disks.
因此，与以前的工作负载相比，这些工作负载能够为部署计划提供更真实的信息(CPU、磁盘、内存和网络)。
Therefore, by using these workloads, you can get more realistic information (CPU, disk, memory, and network) for deployment planning than with prior workloads.
并且由于信息是从ram而不是通过数据库和其他处理从磁盘加载的，所以对信息的访问几乎是瞬时的。
And because the information is being loaded from RAM, and not from disk through a database and other processing, the access to the information is almost instantaneous.
在磁盘上，超块向内核提供关于磁盘上的文件系统的结构的信息。
On disk, the superblock provides information to the kernel on the structure of the file system on disk.
OAT提供DBA所需的大量信息，比如磁盘空间使用情况、日志文件、消耗IO时间最多的sql语句、最慢的sql语句等等。
The OAT provides the much needed information required by the DBA like the disk space usage, log files, SQL statements occupying the most IO time, the slowest SQL statements, and so on.
它显示磁盘统计数据，可以表明一个硬件磁盘是否负担过重，对于这种情况，可以通过把文件系统或信息分散到其他磁盘上加以改善。
It shows disk statistics and can show you if a single hardware disk is being hammered and would benefit from having filesystems or information spread and moved over other disks.
此界面显示了关于系统的部分信息，如磁盘上剩余可用空间和磁盘的总空间。
This interface shows some information about your system, such as the amount of free space left in the disk and the size of your disk.
第二个命令显示磁盘I/O信息，并有助于确定是否需要增加AIO/KAIO虚拟处理器。
The second command is to display disk I/O information and is helpful in determining whether we need to increase AIO/KAIO virtual processors. Here is the eample
du命令并不是显示磁盘的空闲空间，而是显示磁盘使用情况的信息。
The du command, instead of showing disk free space, shows disk usage information.
vmstat 可以报告许多信息，包括内核线程、CPU活动、虚拟内存、分页、阻塞的I/O磁盘、以及相关信息（请参见清单3）。
vmstat reports back information about kernel threads, CPU activity, virtual memory, paging, blocked I/O disks, and related information (see Listing 3).
每次执行查询时，数据库都必须要执行相同的工作——对查询进行分析，确定如何执行查询，从磁盘中加载信息，然后将结果返回给客户机。
Each time the query is made, the database must do the same work — parse the query, determine how to execute it, load information from disk, and return it to the client.
例如，我们希望在整个会话期间保存用户的帐号、名字、地址和其它信息，这样各种组件都能访问这些信息而无需从磁盘检索。
For example, we wanted to keep the user's account Numbers, name, address, and other information throughout the session so various components could access it without having to retrieve it from disk.
最后，清单14中的代码负责安全删除解密文本文件，从而去除任何存储在磁盘上的纯文本信息。
Finally the code in Listing 14 handles the secure deletion of the decrypted text file to remove any clear text information stored on disk.
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