接下来，需要选择lvm。
used to create an LVM physical volume;
用来创建一个LVM物理卷；
Listing 1: Getting to the LVM sources.
清单1：找到LVM源码。
The LVM is structured in three elements.
LVM被组织为三种元素。
LVM provides an abstraction to the underlying storage.
LVM提供底层存储的抽象。
In the tutorial, I only briefly mentioned RAID and LVM.
教程中，我们只是简要地提及了RAID和LVM。
Now, let's take a look at how LVM solves these problems.
现在，让我们看看LVM 是如何解决这些问题的。
This virtual disk, in LVM terms, is called volume group.
这个虚拟磁盘在lvm术语中称为卷组(volume group)。
Using AIX LVM commands, this process was straightforward.
使用AIXLVM命令，这个过程相当直观。
The LVM lets you group disks together into volume groups.
LVM能把磁盘全部划分到卷组中。
Then, we'll be ready to test out LVM and get the most out of it.
然后，我们准备对LVM 做一些测试来充分了解它。
Fortunately, the AIX LVM is a very mature, stable and robust tool.
所幸的是，AIXLVM是一个非常成熟、稳定和强壮的工具。
Volume management is handled by installing LVM on the cluster.
在集群上安装LVM 来执行卷管理。
If you're just testing out LVM, then you can skip these steps.
如果只是测试l VM，可以跳过这些步骤。
To create an LVM logical volume, we follow a three-step process.
我们执行下面的三步骤过程来创建LVM逻辑卷。
Note: I don't attempt to describe how to set up an LVM in this article.
注意：本文中我不想介绍如何建立一个LVM。
It's a very robust implementation of LVM, though it does have its issues.
尽管它确实还存在一些问题，但它仍然是非常可靠的LVM实现。
Thus, you can configure your system with nothing but RAID or LVM partitions.
因此，只要有RAID或LVM分区就可配置系统。
You can resize an existing LVM partition, if it's contiguous with the new space.
如果有一个LVM分区与新空间相邻，您可以调整这个现有分区的大小。
It can also see that I've used these partitions to create LVM logical volumes.
它还可以看到我已用这些分区创建了LVM逻辑卷。
It doesn't force you to replace your partitions, LVM, or software RAID volumes.
它不会强迫您替换分区、LVM或软件raid卷。
We capture the current disk and volume group configuration with several LVM commands.
我们用几个LVM命令捕获当前的磁盘和卷组配置。
The first topic is LVM configuration and how it interacts with partition resizing.
本文第一部分介绍 LVM配置及其如何与分区调整相互作用。
Let's now quickly introduce the elements that are part of LVM, from the bottom up.
现在，让我们简要地、自底向上地介绍LVM中的各个元素。
LVM is a disk allocation technique that supplements or replaces traditional partitions.
LVM是一个磁盘分配技术，补充或替换传统分区。
You can create a new partition in the empty space and add the new partition to your LVM.
您可以在空白空间中创建一个新分区，然后将这个新分区添加到您的LVM。
The AIX LVM provides a simple way of moving large amounts of data from one LPAR to another.
AIXLVM提供了一种简便的方法，可将大量数据从一个LPAR转移到另一个LPAR。
LVM is an AIX disk management system that maps the data between logical and physical storage.
LVM是一种AIX磁盘管理系统，它可以在逻辑和物理存储之间映射数据。
While LVM is running, we can add physical volumes to the volume group or even remove them.
在LVM运行时，我们可以向卷组添加物理卷，甚至从中除去它们。
Next article, I'll show you how to create your own logical volumes and unleash the power of LVM.
在下一篇文章中，我将介绍如何创建您自己的逻辑卷，以及如何发挥LVM的威力。
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