实际上,缓冲可能发生在其它不同的级别,例如硬盘本身、控制器或内核磁盘驱动设备驱动程序,所以我们的工作可能对性能影响不大。
In practice, buffering may occur at various other levels, such as on the hard disk itself, the controller, or the kernel disk drive device driver, so ours may not make much of a difference.
甚至物理卷本身也是逻辑层的一部分,因为物理层仅包含实际的磁盘、设备驱动程序和任何可能配置的阵列。
Even your physical volumes themselves are part of the logical layer, as the physical layer only encompasses the actual disks, device drivers, and any arrays that you might have already configured.
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。
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.
target驱动程序将本地磁盘或者逻辑卷导出到使用iSCSI协议连接到AIX的iSCSIinitiators方。
The target driver exports local disks or logical volumes to iSCSI initiators that connect to AIX using the iSCSI protocol.
如果磁盘被挂载在一个连接到使用该驱动程序的适配器的FibreChannel子系统上,那就无法执行这种操作。
This cannot be done if the disk is mounted on the Fibre Channel subsystem attached to an adapter that uses this driver.
initrd映像实际上是一个RAM磁盘,其中包含带有基本配置文件、二进制文件、库和驱动程序的小型文件系统。
The initrd image is actually a RAM disk that contains a small file system with basic configuration files, binaries, libraries, and drivers.
这种内核所需要加载的东西就是磁盘的设备驱动程序,其他可加载的模块都可以保存在磁盘上。
All this kernel needs to have loaded into it is the device driver for the disk on which the other, loadable, modules are being kept.
在我们的场景中,所使用的系统在磁盘驱动器、目录结构、数据库驱动程序位置等方面都是完全相同的。
In our scenario, the systems we are using are identical in terms of disk drives, directory structure, database driver location, and so on.
这些可加载的模块为内核提供了访问磁盘和磁盘上的文件系统的方法,并为其他硬件提供了驱动程序。
These loadable modules give the kernel the means to access disks and the file systems on those disks, as well as drivers for other hardware assets.
文件系统驱动程序更新适当的元数据,但是没有时间将其缓存中的数据刷新到磁盘的新块中。
The filesystem driver updated the appropriate metadata, but didn't have time to flush the data from its caches to the new blocks on disk.
配置主机适配器驱动程序,通过初始ram磁盘进行加载,初始ram磁盘将在引导过程中加载适配器模块时对冗余磁盘应用配置数据。
Configure the host adapter driver to be loaded through an initial RAM disk, which applies the configuration data for redundant disks when loading the adapter module at boot time.
内核模块实现一个用于虚拟块设备(跨网络在本地磁盘与远程磁盘之间复制)的驱动程序。
The kernel module implements a driver for a virtual block device (which is replicated between a local disk and a remote disk across the network).
根据解决方案的不同,此位置可能在主机筛选器驱动程序级别上,也可能在存储阵列中的某个磁盘切片上。
Depending upon the solution, this location can be at the host filter driver level or at a disk slice within a storage array.
根据解决方案的不同,此位置可能在主机筛选器驱动程序级别上,也可能在存储阵列中的某个磁盘切片上。
Depending upon the solution, this location can be at the host filter driver level or at a disk slice within a storage array.
应用推荐