在我们的例子中，我们使用的分区，只有物理磁盘的部分，根据性能和可靠性做决定。
In our case, we're using partitions, which are only parts of physical disks, making the decisions regarding performance and reliability trickier.
它们充当DB 2页面的一个快速缓存，使用RDMA技术在可能需要物理磁盘操作的情况下提供性能提升。
They act as a fast cache for DB2 pages, using RDMA technology to provide increased performance in situations where a physical disk operation may otherwise have been required.
如果您的数据仅位于几个轴，那么使用多个逻辑单元号(LUN)或者物理磁盘又有什么实际意义呢？
If your data resides on only a few spindles, what is the point exactly of having multiple logical unit Numbers (LUNs) or physical disks?
如果数据仅位于几个轴，那么使用多个逻辑单元号(LUN)或者物理磁盘又有什么实际意义呢？
If your data resides on only a few spindles, what is the purpose of having multiple logical unit Numbers (LUNs) or physical disks?
一个不常用并且较新的特性是RAM磁盘，它允许使用物理ram存储文件系统。
A little used and relatively new feature is the RAM disk, which allows for the use of physical RAM as the storage for a file system.
是否能够把不经常使用的文件存储在比较慢的物理磁盘上。
Can you isolate seldom-used files for storage on slower physical disks?
这些服务器也作为DB 2页的快速缓存，它们使用RDMA技术替换原本需要物理磁盘操作的位置以提高性能。
The servers also act as a fast cache for DB2 pages, leveraging RDMA technology to provide increased performance in situations where a physical disk operation might otherwise have been required.
通过使用LVM，所有物理磁盘和分区，无论它们的大小和分布方式如何，都被抽象为单一存储(single storage)源。
By using LVM, all physical disks and partitions, no matter what size and how scattered they are, can be abstracted and viewed as a single storage source.
因为ext3使用物理日志记录，所以ext3日志将具有比其它文件系统日志(例如，XFS日志)更大的相对磁盘占用。
Because ext3 USES physical journaling, an ext3 journal will have a larger relative on-disk footprint than, say, an XFS journal.
您可以使用fdisk -l命令列出一台机器上可用的所有物理卷，以及磁盘大小。
You can use the fdisk -l command to list all physical volumes available on a machine, along with sizes of the disks. The following example shows output from that command
这个initrd 会作为RAM中的临时根文件系统使用，并允许内核在没有挂载任何物理磁盘的情况下完整地实现引导。
This initrd serves as a temporary root file system in RAM and allows the kernel to fully boot without having to mount any physical disks.
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。
Having the images on disk makes them easy to access and faster to load than using physical media.
它报告文件系统的所有层的使用率，包括逻辑卷管理器(LVM)、虚拟内存和物理磁盘层。
It reports on all layers of file system utilization, including the Logical Volume Manager (LVM), virtual memory, and physical disk layers.
LVM中的逻辑卷就相当于物理磁盘分区；在实际使用中，它们就是物理磁盘分区。
Logical volumes are the LVM equivalent of physical disks partitions-for all practical purposes, they are physical disk partitions.
这里，我们看到的是一套物理资产，如服务器、网络设备，以及作为供给服务提供给使用者的存储磁盘。
Here, we see a set of physical assets such as servers, network devices, and storage disks offered as provisioned services to consumers.
要作为共用分页空间设备使用的磁盘必须是SAN上的完整物理磁盘。
Disks that you want to use as common paging space devices must be whole physical disks located on the SAN.
在操作系统级，使用大容量磁盘阵列，通过磁盘映像技术使每一个数据库文件自动分布于每个物理磁盘。
In operating system class, array of disk of use high capacity, make through disk image technology each database file distributings automatically at every physics disk.
这是用来衡量在不使用时可以写入到磁盘上的操作系统使用的物理内存的数量。
It is a measure of the amount of physical memory being used by the operating system that can be written to disk when not in use.
这是用来衡量在不使用时可以写入到磁盘上的操作系统使用的物理内存的数量。
It is a measure of the amount of physical memory being used by the operating system that can be written to disk when not in use.
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