LVM

美 　英

• 網(wǎng)絡(luò)邏輯卷管理器(logical volume manager)；邏輯卷管理程序；物理卷

例句

Then, we'll be ready to test out LVM and get the most out of it.

然后，我們準(zhǔn)備對(duì)LVM做一些測(cè)試來(lái)充分了解它。

While the transition to LVM is a bit of an ordeal , once the transition is complete , managing filesystems becomes tremendously easier .

雖然到LVM的轉(zhuǎn)換有些痛苦，但一旦轉(zhuǎn)換完成之后，管理文件系統(tǒng)就變得非常簡(jiǎn)單。

LVM allows you to create logical volumes out of the physical storage resources on your machine.

LVM可以讓您在除機(jī)器上的物理存儲(chǔ)資源以外創(chuàng)建邏輯卷。

Logical volume management (LVM) is a way systems can abstract physical volume management into a higher-level and usually simpler paradigm.

邏輯卷管理（LVM）指系統(tǒng)將物理卷管理抽象到更高的層次，常常會(huì)形成更簡(jiǎn)單的管理模式。

The LVM enables the data to be on multiple physical drives, though they might be configured to be on a single volume group.

LVM允許數(shù)據(jù)位于多個(gè)物理驅(qū)動(dòng)器，盡管可能將它們配置為屬于單個(gè)卷組。

Layer the Logical Volume Manager (LVM) between the disk and the file system. Doing so allows you to extend the EBS volume at a later time.

在磁盤和文件系統(tǒng)之間建立LogicalVolumeManager（LVM）層，這樣以后您將可以擴(kuò)展EBS卷。

First, we need to select the physical storage resources that are going to be used for LVM.

首先，我們需要選擇用于LVM的物理存儲(chǔ)器資源。

Depending on your LVM version, there may be other LVM-related options that you'll want to enable as well.

根據(jù)您使用的LVM版本，可能還有其它一些希望啟用的與LVM相關(guān)的選項(xiàng)。

By aggregating partitions and whole disks into a virtual disk, LVM can sum small storage spaces into a bigger, consolidated one.

LVM可以將分區(qū)和磁盤聚合成一個(gè)虛擬磁盤（virtualdisk），從而用小的存儲(chǔ)空間組成一個(gè)統(tǒng)一的大空間。

LVM actually controls all the physical disk resources on your system and helps provide a logical view of your storage subsystem.

實(shí)際上，LVM控制系統(tǒng)中所有的物理磁盤資源，并幫助提供存儲(chǔ)子系統(tǒng)的邏輯視圖。

EVMS calls these final storage objects "logical volumes, " whether they happen actually to be disks, partitions, or LVM logical volumes.

EVMS將這些最終存儲(chǔ)對(duì)象統(tǒng)稱為“邏輯卷”，而不管它們實(shí)際上正好是磁盤、分區(qū)，還是LVM邏輯卷。

Let's now quickly introduce the elements that are part of LVM, from the bottom up.

現(xiàn)在，讓我們簡(jiǎn)要地、自底向上地介紹LVM中的各個(gè)元素。

If you've never used a form of LVM before, you're in for a treat; it's a wonderful technology.

如果您以前從未使用過(guò)任何形式的LVM，那么您得好好學(xué)一學(xué)；它是一種非常棒的技術(shù)。

If you use parted, you can use the set command to turn on the lvm flag, as in set 1 lvm on to flag partition 1 as an LVM partition.

如果您使用parted，那么您可以使用set命令來(lái)打開lvm標(biāo)記，正如在set1lvmon中標(biāo)記分區(qū)1作為一個(gè)LVM分區(qū)。

Using this event producer, an application can verify the status of a Volume Group on the disk, with the LVM subsystem.

通過(guò)使用本事件創(chuàng)造器，應(yīng)用程序可以通過(guò)LVM子系統(tǒng)驗(yàn)證磁盤上VolumeGroup的狀態(tài)。

The latest available Red Hat Exam Prep guide includes LVM requirements on both parts of the RHCE exam.

最近的可得紅帽考試預(yù)科的指南在RHCE考試的兩者部份上包括LVM需求。

This section defines the Logical Volume Manager (LVM) and introduces some of its features.

本節(jié)定義邏輯卷管理器（LogicalVolumeManager，LVM）并介紹它的一些特性。

Even though RAID and LVM provide interesting features, XFS is the simplest option for a relatively small EBS volume.

即使RAID和LVM提供了有趣的特性，對(duì)于一個(gè)相對(duì)較小的EBS卷來(lái)說(shuō)XFS也是最簡(jiǎn)單的選擇。

This allows data to reside on multiple physical platters and to be managed and analyzed using specialized LVM commands.

這允許數(shù)據(jù)保存在多個(gè)物理盤片上，并使用專門的LVM命令對(duì)其進(jìn)行管理和分析。

You can resize an existing LVM partition, if it's contiguous with the new space.

如果有一個(gè)LVM分區(qū)與新空間相鄰，您可以調(diào)整這個(gè)現(xiàn)有分區(qū)的大小。

LVM consists of two parts: a kernel part and a suite of user-space tools.

LVM由兩部分組成：內(nèi)核部分和一套用戶空間工具。

As a consequence of the new pbuf pool implementation, AIX displays and manages additional LVM statistics and tuning parameters.

因?yàn)?/c>有了新的pbuf池的實(shí)現(xiàn)，AIX可以顯示和管理附加的LVM統(tǒng)計(jì)信息和調(diào)整參數(shù)。

Note that the initial-ramdisk image usually activates LVM only when it detects that the root filesystem is under a VG.

注意，通常只有當(dāng)探測(cè)到根文件系統(tǒng)在一個(gè)VG中時(shí)，initial-ramdisk映像才會(huì)啟用LVM。

If you plan to have your root filesystem inside an LVM LV, take extra care with the initial-ramdisk image.

如果打算將根文件系統(tǒng)放在一個(gè)LVMLV中，那么還要注意initial-ramdisk映像。

The data migration from the old disk to the new disk would be accomplished by the LVM command, migratepv.

使用LVM命令migratepv可以完成從舊磁盤到新磁盤的數(shù)據(jù)遷移。

This virtual disk, in LVM terms, is called volume group.

這個(gè)虛擬磁盤在LVM術(shù)語(yǔ)中稱為卷組（volumegroup）。

Another four volumes were used in an LVM for mail journaling.

一個(gè)LVM中的另外4個(gè)卷用于郵件日志。

It reports on all layers of file system utilization, including the Logical Volume Manager (LVM), virtual memory, and physical disk layers.

它報(bào)告文件系統(tǒng)的所有層的使用率，包括邏輯卷管理器（LVM）、虛擬內(nèi)存和物理磁盤層。

The volume group name used to automatically partition using LVM is already in use.

在使用LVM來(lái)進(jìn)行磁碟自動(dòng)分割時(shí)所采用的卷冊(cè)群組名稱已在使用。

Both filesystem types link their file and directory data to the structure used by the AIX LVM for storage and retrieval.

這兩種文件類型都將其文件和目錄數(shù)據(jù)鏈接到AIXLVM所使用的存儲(chǔ)和檢索結(jié)構(gòu)中。

What you find is that as a practical matter, AIX LVM is really more like VERITAS, but without the premium price and third party issues.

實(shí)際上您將發(fā)現(xiàn)，AIXLVM更像VERITAS，但是沒有額外的費(fèi)用和因第三方產(chǎn)生的問(wèn)題。

LVM uses this area to keep track of how the physical extents are allocated, among other things.

LVM使用該區(qū)域來(lái)記錄物理范圍是如何分配的，以及其它一些操作。

The LVM system will then allocate storage from the volume group we specify and create our new volume, which is now ready for use.

然后，LVM系統(tǒng)從我們指定的卷組中分配存儲(chǔ)量來(lái)創(chuàng)建準(zhǔn)備使用的新卷。

LVM is an AIX disk management system that maps the data between logical and physical storage.

LVM是一種AIX磁盤管理系統(tǒng)，它在邏輯和物理存儲(chǔ)之間映射數(shù)據(jù)。

You can even use the AIX LVM to migrate to a completely new SAN storage subsystem (see Resources).

您甚至可以使用AIXLVM將其遷移到一個(gè)全新的SAN存儲(chǔ)子系統(tǒng)（請(qǐng)參閱參考資料）。

Behind the scenes, the LVM system allocates storage in equal-sized "chunks" , called extents.

在幕后，LVM系統(tǒng)以大小相等的“塊”（稱為“范圍”）為單位分配存儲(chǔ)量。

You may select partitions on RAID and LVM devices as well as those created directly on disks.

您也可以選擇RAID和LVM設(shè)備上的分區(qū)，與直接在磁盤上創(chuàng)建一樣。

LVM allows admins to manage their storage resources with much greater flexibly than the traditional method of using static disk partitions.

LVM使管理員可以用更加靈活的方式來(lái)管理其存儲(chǔ)資源，這要比用靜態(tài)磁盤分區(qū)這種傳統(tǒng)方式靈活得多。

From here, you can create a volume group, add to an existing volume group, or remove a volume from the LVM altogether.

然后，您可以創(chuàng)建卷組，將物理卷添加到現(xiàn)有的卷組，或者從LVM中完全刪除某個(gè)卷。

The command shown in Listing 10 takes a snapshot of LVM information every second for 10 intervals.

清單10所示的命令在10個(gè)時(shí)間間隔內(nèi)每秒鐘對(duì)LVM信息取一次快照。