Changeset 0d7900a for postlfs/filesystems/aboutlvm.xml
- Timestamp:
- 02/11/2013 06:51:17 PM (11 years ago)
- Branches:
- 10.0, 10.1, 11.0, 11.1, 11.2, 11.3, 12.0, 12.1, 7.10, 7.4, 7.5, 7.6, 7.6-blfs, 7.6-systemd, 7.7, 7.8, 7.9, 8.0, 8.1, 8.2, 8.3, 8.4, 9.0, 9.1, basic, bdubbs/svn, elogind, gnome, kde5-13430, kde5-14269, kde5-14686, kea, ken/TL2024, ken/inkscape-core-mods, ken/tuningfonts, krejzi/svn, lazarus, lxqt, nosym, perl-modules, plabs/newcss, plabs/python-mods, python3.11, qt5new, rahul/power-profiles-daemon, renodr/vulkan-addition, systemd-11177, systemd-13485, trunk, upgradedb, xry111/intltool, xry111/llvm18, xry111/soup3, xry111/test-20220226, xry111/xf86-video-removal
- Children:
- 8f83eeb
- Parents:
- a161de9
- File:
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- 1 edited
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postlfs/filesystems/aboutlvm.xml
ra161de9 r0d7900a 17 17 18 18 <para>LVM manages disk drives. It allows multiple drives and partitions 19 to be combined into larger <emphasis>volume groups</emphasis>, assists in 20 making backups through a <emphasis>snapshot</emphasis>, and allows for 19 to be combined into larger <emphasis>volume groups</emphasis>, assists in 20 making backups through a <emphasis>snapshot</emphasis>, and allows for 21 21 dynamic volume resizing. It can also provide mirroring similar to 22 22 a RAID 1 array.</para> … … 24 24 <para>A complete discussion of LVM is beyond the scope of this introduction, 25 25 but basic concepts are presented below.</para> 26 26 27 27 <para>To run any of the commands presented here, the <xref linkend='lvm2'/> 28 28 package must be installed. All commands must be run as the <systemitem … … 43 43 <listitem><para>These are named groups of physical volumes that 44 44 can be manipulated by the administrator. The number of physical 45 volumes that make up a volume group is arbitrary. Physical volumes 46 can be dynamically added or removed from a volume group. 45 volumes that make up a volume group is arbitrary. Physical volumes 46 can be dynamically added or removed from a volume group. 47 47 </para></listitem> 48 48 </varlistentry> … … 56 56 57 57 </varlistentry> 58 </variablelist> 58 </variablelist> 59 59 60 60 <para>To give a concrete example, suppose that you have two 2 TB disks. … … 69 69 /dev/sda4 LVM remainder 8e (LVM) 70 70 /dev/sdb1 swap 2GB 82 (Swap) 71 /dev/sdb2 LVM remainder 8e (LVM)</literal></screen> 71 /dev/sdb2 LVM remainder 8e (LVM)</literal></screen> 72 72 73 73 <para>First initialize the physical volumes:</para> … … 89 89 90 90 <para>Finally the logical volumes can be formatted and mounted. In this 91 example, the jfs file system (<xref linkend='jfsutils'/>) is used for 91 example, the jfs file system (<xref linkend='jfsutils'/>) is used for 92 92 demonstration purposes.</para> 93 93 … … 104 104 <para>A LVM logical volume can host a root filesystem, but requires the use 105 105 of an initramfs (initial RAM file system) and is not discussed here.</para> 106 106 107 107 <para>For a more information about LVM, see the <ulink 108 108 url="http://www.tldp.org/HOWTO/LVM-HOWTO/">LVM HOWTO</ulink> and
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