有些操作系统，比如Windows，必须从主分区引导。
Some operating systems, such as Windows, must boot from a primary partition.
分区的数字标识符(在本例中是3；0值总是指主分区)。
A numeric identifier for the partition (3, in this example; a value of 0 always refers to the primary partition).
遗憾的是，许多需要主分区的操作系统都不能从GPT磁盘引导。
Unfortunately, many of the operating systems that require primary partitions are unable to boot from GPT disks.
加载程序不是安装在MBR中，就是安装在活动主分区的第一个扇区中。
Either loader is installed at the MBR or at the first sector of the active primary partition.
上面的示例中使用的磁盘具有三个主分区，均格式化为供linux使用。
The disk used in the earlier examples has three primary partitions, all formatted for Linux use.
如果需要超过4个分区，就需要放弃一个主分区来创建一个扩展分区。
If you need more than four partitions, give away one primary partition to create an extended partition.
必须有一个分区格式化为0x41 (PRePBoot)可引导类型的主分区。
It must have a partition formatted as a primary partition of type 0x41 (PReP boot) bootable.
其中两个主分区使用ext3文件系统，而另一个主分区使用ext4文件系统。
例如，您不能缩小某个文件系统，以及您需要在新的布局中周密计划主分区与逻辑分区的配置。
For instance, you can't shrink certain file systems, and you may need to carefully plan the positioning of primary versus logical partitions in your new layout.
如果您想要从逻辑分区腾出空间给主分区，您必须显式地调整围绕逻辑分区的扩展分区，反之一样。
If you want to take space from a logical partition to give it to a primary partition or vice versa, you must explicitly resize the extended partition that surrounds the logical partitions.
虽然文件系统很多种，但分区类型只有三种：主分区，扩展分区，逻辑分区，其中逻辑分区是在扩展分区中的。
While there are tons of file system types, there are only three kinds of partitions: primary, extended, and logical.
注意主分区是从1到4进行编号的，编号系统可能有间隙，但是逻辑分区是从5开始编号的，不存在间隙。
Note that primary partitions are numbered from 1 to 4, and the numbering system may contain gaps, whereas logical partitions are numbered from 5 up and may not contain gaps.
如果原始分区(主分区)出现故障，将把它的一个副本提升为新主分区，然后在其他地方创建一个新副本。
If the original partition (the primary partition) fails, one of its replicas is promoted to become the new primary, and then a new replica is created somewhere else.
这一配对包括了主分区中的虚拟服务提供者(vsp)，它负责和每个虚拟机中的虚拟服务客户端(VSC)交互。
That pairing includes a virtualization service provider (VSP) in the primary partition whose job is to interact with virtualization service clients (VSC) in each virtual machine.
如果需要4个以上的主分区(往往需要4个以上的主分区)，其中一个主分区就必须以扩展分区的形式出现。
When more than four partitions are required, as is often the case, one of the primary partitions must instead become an extended partition.
使用异步副本是一个备选方案，这可以避免同步副本带来的某些性能开销，但是这不能保证与主分区始终同步。
Using asynchronous replicas is an alternative that avoids some of the performance overhead of synchronous replicas, but they are not guaranteed to be identical to the primary at all times.
然而，这是一种笨拙的权宜之计，会导致一些问题。比如，安装多个操作系统时，如果过多的操作系统要求自身拥有过多的主分区，就会出现困难。
This is, however, an ugly workaround that creates its own problems, such as difficulties installing multiple operating systems when too many of them want too many primary partitions to themselves.
运行OS/400 的主分区需要至少 256MB主存，而Linux客分区需要至少 64 MB 主存（推荐使用 128 MB或者更多）。
The primary partition that will be running OS/400 requires at least 256 MB of main memory, and the Linux guest partition requires at least 64 MB of main memory (128 MB or greater is recommended).
正常情况下，由主分页VIOS分区提供分页功能。
Paging will normally be provided by the primary paging VIOS partition.
控制台用户通过telnet访问主iseries分区的2301端口。
The console user accesses port 2301 on the primary iSeries partition via Telnet.
IDE驱动器上有三种类型的分区：主、逻辑和扩展。
There are three types of partition on IDE drives: primary, logical, and extended.
在过滤器与提示信息中利用分区和主索引。
Leverage partitions and Primary Indexes in filters and prompts.
这种现象称为链式加载(chain loading)，通常发生在位于主引导记录(MBR)中的引导管理器加载一个分区引导记录中的启动加载程序的时候。
This is called chain loading, and it most frequently occurs when the boot manager that is located in the master boot record (MBR) loads the boot loader that is in a partition boot record.
MBR中的主引导加载程序是一个 512字节大小的映像，其中包含程序代码和一个小分区表（参见图2）。
The primary boot loader that resides in the MBR is a 512-byte image containing both program code and a small partition table (see Figure 2).
硬盘则不同。硬盘有一个MBR(主引导记录)，这是因为一个硬盘可以有多个分区，并且其中的任何一个分区都可以是可启动的。
A hard disk is different. A hard disk has an MBR (Master boot Record), this is because a hard disk can have multiple partitions and any one of them can be bootable.
如果主分页VIOS分区停止运行或者执行手工切换，就向从分页VIOS分区执行故障转移。
If the primary paging VIOS partition is shut down or you force a manual switch, a failover to the secondary paging VIOS partition is performed.
然而要注意，您只能禁用当前未使用的交换分区，并且不能禁用主交换分区。
However, note that you can only disable swap that is not currently in use, and it is not possible to disable the primary swap partition.
可以从支持的设备(如软盘驱动器、CD、USBkey或主驱动器上的微小分区)执行初始引导步骤，然后使用外置驱动器进行其他操作。
You can perform the preliminary boot steps from a supported device such as a floppy drive, CD, USB key, or a tiny partition on the main drive, and then use the external drive for everything else.
交叉表的分区将Productline查询项目放置到标头中，生成了一个“主-细节”关系。
The sectioning of the crosstab places the Product line query item into the header and generates a master-detail relationship.
交叉表的分区将Productline查询项目放置到标头中，生成了一个“主-细节”关系。
The sectioning of the crosstab places the Product line query item into the header and generates a master-detail relationship.
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