Variable air volume systems have been widely used in various kinds of buildings due to their energy-savings, comfort, safety and good flexibility.
变风量系统因其节能、舒适、安全以及好的灵活性而被广泛应用于各类建筑物。
Each volume in the set explores a wide range of material, explains the basic concepts of major applications of digital systems, and discusses the influences they have on everyday life.
系列中的每卷探索了广泛的材料，解释数字系统的主要应用的基本概念，并讨论了它们对日常生活的影响。
When you export the volume group, you effectively package all its logical volumes and file systems along with the directories and files in them.
在导出卷组的时候，可以将所有逻辑卷和文件系统与其中的目录和文件一起有效打包。
Sometimes, I will be extra thorough in unmounting all file systems in a volume group and doing this with a small loop in a shell script in case there is a latent problem.
有时，我会格外彻底地卸载一个卷组内所有的文件系统，并使用外壳脚本中的循环脚本来完成此项任务以防出现潜在问题。
This also makes the volume group active and updates the new LPAR with details of file systems associated with the logical volumes.
这样还可以激活卷组，并用逻辑卷组相关联的文件系统的细节信息来更新新的LPAR。
Objects on a system could be files, file systems, volume groups, devices, and more.
系统上的对象可以是文件、文件系统、卷组、设备等。
JFS and JFS2 file systems require a logical volume for the JFS log.
JFS和JFS2文件系统需要一个用于JFS日志的逻辑卷。
Some file systems do not support files larger than 2gb, so there is an option to set the maximum file size by splitting the image into multiple volume files.
一些文件系统不支持大于2g的文件，因此，可以通过将映像分解到多个卷文件，从而设置最大文件大小。
Configure the disks, volume group, and file systems on the target LPAR.
在目标LPAR上配置磁盘、卷组和文件系统。
As a result, at the start of the sales event, the retailers systems experience a tremendous spike in volume, placing a tremendous stress on the relatively cold system.
结果，在促销活动开始时，零售系统会遇到一个巨大的访问峰值，这会给处于相对冷机状态的系统造成巨大的压力。
I have seen this typically when a customer has several external volume groups and file systems are hierarchically linked.
当客户拥有多个外部卷组并且文件系统按照分层结构连接，那么就很容易出现上述情况。
The potential takeover target must actually bring resources online that are typically an exclusive, ownership-type item, such as disk groups, volume, or file systems.
可用接管目标必须确保一个独占、所有权型的资源(例如磁盘组，卷或文件系统)联线。
This ensures that the data volume groups and the file systems are consistent.
这确保数据卷组和文件系统是一致的。
Logical volume management (LVM) is a way systems can abstract physical volume management into a higher-level and usually simpler paradigm.
逻辑卷管理(lvm)指系统将物理卷管理抽象到更高的层次，常常会形成更简单的管理模式。
After you assign the disks to the target LPAR, you need to identify them at the operating system level and then make the volume group and file systems available.
向目标LPAR分配磁盘之后，需要在操作系统层识别它们并让卷组和文件系统能够使用。
This is very helpful when drilling down to the logical volume layer when tuning your systems (see Listing 10).
在优化系统时需要深入地研究逻辑卷层，这时候该视图是非常有价值的(请参见清单10)。
As the stock-trading volume soared, data systems across the stock market began to bog down.
随着股票交易量的激增，股市中各数据系统开始出现问题。
That requires you to unmount the file systems that belong to the volume group you are going to export.
这需要卸载属于将要导出卷组的文件系统。
They are often crucial parts of high volume transactional systems and have access to sensitive data.
它们往往是事务性系统的关键部分。
This is very helpful when drilling down to the logical volume layer when tuning your systems.
这对于深入研究逻辑卷层非常有帮助。
List file systems in the volume group.
列出卷组中的文件系统。
For example, consider an Oracle database server with three volume groups and interrelated file systems.
例如，考虑一个Oracle数据库服务器，它包含三个卷组和相关的文件系统。
Once again, you can list all the file systems belonging to the volume group with LSVGFS.
您可以再次使用lsvgfs列出属于卷组的所有文件系统。
The nim master creates the cache file systems in the nimadmvg volume group. Some initial checks for the required migration disk space are performed.
nim主机在nimadmvg卷组中创建缓存文件系统，并对需要的迁移磁盘空间执行一些初步检查。
Unmount any file systems in the volume group using the umount command.
使用umount命令来卸载卷组中所有文件系统。
To identify the file systems belonging to a volume group, use the LSVGFS command.
要识别属于某个卷组的文件系统，使用lsvgfs命令。
If the Local Disk Caching function is invoked, then nimadm will create the client file systems in a volume group on the nim master.
如果LocalDiskCaching功能被调用，那么nimadm将在nim主机上的一个卷组上创建客户机文件系统。
The RMLV command removes only the logical volume, but does not remove other entities, such as file systems or paging Spaces that were using the logical volume.
rmlv命令仅删除逻辑卷，但不删除其他实体，例如使用该逻辑卷的文件系统或分页空间。
It's a volume group-a logical group of disks-that is created at the time you install AIX. It contains the AIX operating system with its standard file systems.
每个AIX系统都有一个rootvg，它是一个卷组，即在安装AIX时所创建的逻辑磁盘组，它包含了AIX操作系统及其标准文件系统。
With each new class, the volume shrinks by two orders of magnitude and the number of systems per person increases.
贝尔定律则说，每十年便会开发出一代新型的更小、更便宜的电脑。 每一代新电脑的体积以两个数量级下降，而人均拥有的系统数量增加。
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