[8bc3edae] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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| 4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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| 5 | %general-entities;
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| 6 |
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| 7 | <!ENTITY lvm2-download-http " ">
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[16e1157] | 8 | <!ENTITY lvm2-download-ftp "ftp://sources.redhat.com/pub/lvm2/LVM2.&lvm2-version;.tgz">
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[0093e91] | 9 | <!ENTITY lvm2-md5sum "326df8542d3a2376da907e98a0888ccf">
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[e9ca6e5d] | 10 | <!ENTITY lvm2-size "1.6 MB">
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[0093e91] | 11 | <!ENTITY lvm2-buildsize "39 MB (additional 9 MB to run the test suite)">
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| 12 | <!ENTITY lvm2-time "0.4 SBU (additional 8.3 SBU to run the test suite with -j4)">
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[8bc3edae] | 13 | ]>
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| 14 |
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[c627795] | 15 | <sect1 id="lvm2" xreflabel="LVM2-&lvm2-version;">
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[8bc3edae] | 16 | <?dbhtml filename="lvm2.html"?>
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| 17 |
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| 18 | <sect1info>
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| 19 | <othername>$LastChangedBy$</othername>
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| 20 | <date>$Date$</date>
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| 21 | </sect1info>
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| 22 |
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[c627795] | 23 | <title>LVM2-&lvm2-version;</title>
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[8bc3edae] | 24 |
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| 25 | <indexterm zone="lvm2">
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[c627795] | 26 | <primary sortas="a-LVM2">LVM2</primary>
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[8bc3edae] | 27 | </indexterm>
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| 28 |
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| 29 | <sect2 role="package">
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[c627795] | 30 | <title>Introduction to LVM2</title>
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[8bc3edae] | 31 |
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[c627795] | 32 | <para>
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| 33 | The <application>LVM2</application> package is a package that manages
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| 34 | logical partitions. It allows spanning of file systems across multiple
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| 35 | physical disks and disk partitions and provides for dynamic growing or
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| 36 | shrinking of logical partitions.
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| 37 | </para>
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[8bc3edae] | 38 |
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[26654eb] | 39 | &lfs77_checked; &gcc5_checked;
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[8bc3edae] | 40 |
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| 41 | <bridgehead renderas="sect3">Package Information</bridgehead>
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| 42 | <itemizedlist spacing="compact">
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[f60cf4a] | 43 | <listitem>
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[c627795] | 44 | <para>
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| 45 | Download (HTTP): <ulink url="&lvm2-download-http;"/>
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| 46 | </para>
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[f60cf4a] | 47 | </listitem>
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[8bc3edae] | 48 | <listitem>
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[c627795] | 49 | <para>
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| 50 | Download (FTP): <ulink url="&lvm2-download-ftp;"/>
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| 51 | </para>
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[8bc3edae] | 52 | </listitem>
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| 53 | <listitem>
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[c627795] | 54 | <para>
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| 55 | Download MD5 sum: &lvm2-md5sum;
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| 56 | </para>
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[8bc3edae] | 57 | </listitem>
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| 58 | <listitem>
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[c627795] | 59 | <para>
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| 60 | Download size: &lvm2-size;
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| 61 | </para>
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[8bc3edae] | 62 | </listitem>
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| 63 | <listitem>
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[c627795] | 64 | <para>
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| 65 | Estimated disk space required: &lvm2-buildsize;
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| 66 | </para>
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[8bc3edae] | 67 | </listitem>
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| 68 | <listitem>
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[c627795] | 69 | <para>
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| 70 | Estimated build time: &lvm2-time;
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| 71 | </para>
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[8bc3edae] | 72 | </listitem>
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| 73 | </itemizedlist>
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| 74 |
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[b5e8375] | 75 | <bridgehead renderas="sect3">LVM2 Dependencies</bridgehead>
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| 76 |
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| 77 | <bridgehead renderas="sect4">Optional</bridgehead>
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| 78 | <para role="optional">
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| 79 | <xref linkend='mdadm'/> (for checks) and
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| 80 | <xref linkend='xfsprogs'/> (for checks)
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| 81 | </para>
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| 82 |
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[8bc3edae] | 83 | <para condition="html" role="usernotes">User Notes:
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[c627795] | 84 | <ulink url="&blfs-wiki;/lvm2"/>
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| 85 | </para>
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[8bc3edae] | 86 | </sect2>
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| 87 |
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[c627795] | 88 | <sect2 role="kernel" id="lvm2-kernel">
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[7e1df8f9] | 89 | <title>Kernel Configuration</title>
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| 90 |
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[c627795] | 91 | <para>
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[421128a1] | 92 | Enable the following options in the kernel configuration
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[c627795] | 93 | and recompile the kernel:
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| 94 | </para>
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[7e1df8f9] | 95 |
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[b5e8375] | 96 | <note><para>
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| 97 | There are several other Device Mapper options in the kernel beyond those
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| 98 | listed below. In order to get reasonable results if running the
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| 99 | regression tests, all must be enabled either internally or as a module.
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| 100 | </para></note>
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| 101 |
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[7e1df8f9] | 102 | <screen><literal>Device Drivers --->
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[421128a1] | 103 | [*] Multiple devices driver support (RAID and LVM) ---> [CONFIG_MD]
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| 104 | <*/M> Device mapper support [CONFIG_BLK_DEV_DM]
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| 105 | <*/M/ > Crypt target support [CONFIG_DM_CRYPT]
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| 106 | <*/M/ > Snapshot target [CONFIG_DM_SNAPSHOT]
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| 107 | <*/M/ > Mirror target [CONFIG_DM_MIRROR]</literal></screen>
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[7e1df8f9] | 108 |
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| 109 | <indexterm zone="lvm2 lvm2-kernel">
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| 110 | <primary sortas="d-lvm2">lvm2</primary>
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| 111 | </indexterm>
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| 112 |
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| 113 | </sect2>
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| 114 |
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[8bc3edae] | 115 | <sect2 role="installation">
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[c627795] | 116 | <title>Installation of LVM2</title>
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[8bc3edae] | 117 |
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[c627795] | 118 | <para>
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| 119 | Install <application>LVM2</application> by running the following
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| 120 | commands:
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| 121 | </para>
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[8bc3edae] | 122 |
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[6cfbed09] | 123 | <screen><userinput>./configure --prefix=/usr \
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[4591404] | 124 | --exec-prefix= \
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[f60cf4a] | 125 | --with-confdir=/etc \
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[4591404] | 126 | --enable-applib \
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| 127 | --enable-cmdlib \
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| 128 | --enable-pkgconfig \
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[46a9711b] | 129 | --enable-udev_sync &&
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[8bc3edae] | 130 | make</userinput></screen>
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| 131 |
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[c627795] | 132 | <para>
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[b5e8375] | 133 | The check command must be run as the <systemitem
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| 134 | class="username">root</systemitem> user. Also the tests are known to
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| 135 | hang if at least one partition on a hard drive is not set up as a Linux
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| 136 | LVM partition (type 8e00). To test the results, issue: <command>make
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| 137 | check</command> as the <systemitem class="username">root</systemitem>
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[24b17d76] | 138 | user. The test timings are very dependent on the speed of the disk(s),
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[5b46925d] | 139 | and on the number of enabled kernel options.
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[c627795] | 140 | </para>
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[8bc3edae] | 141 |
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[c627795] | 142 | <para>
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| 143 | Now, as the <systemitem class="username">root</systemitem> user:
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| 144 | </para>
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[8bc3edae] | 145 |
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| 146 | <screen role="root"><userinput>make install</userinput></screen>
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| 147 |
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| 148 | </sect2>
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| 149 |
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| 150 | <sect2 role="commands">
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| 151 | <title>Command Explanations</title>
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| 152 |
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[c627795] | 153 | <para>
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[2800af7] | 154 | <parameter>--enable-applib</parameter>: This switch enables
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[c627795] | 155 | building of the shared application library.
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| 156 | </para>
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| 157 |
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| 158 | <para>
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[2800af7] | 159 | <parameter>--enable-cmdlib</parameter>: This switch enables
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[c627795] | 160 | building of the shared command library. It is required
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| 161 | when building the event daemon.
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| 162 | </para>
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| 163 |
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| 164 | <para>
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[2800af7] | 165 | <parameter>--enable-pkgconfig</parameter>: This switch enables
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[c627795] | 166 | installation of <command>pkg-config</command> support files.
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| 167 | </para>
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| 168 |
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| 169 | <para>
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[2800af7] | 170 | <parameter>--enable-udev_sync</parameter>: This switch enables
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[c627795] | 171 | synchronisation with <application>Udev</application> processing.
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| 172 | </para>
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| 173 |
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| 174 | <para>
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| 175 | <option>--enable-dmeventd</option>: This switch enables
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| 176 | building of the <application>Device Mapper</application>
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| 177 | event daemon.
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| 178 | </para>
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[8bc3edae] | 179 |
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| 180 | </sect2>
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| 181 |
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| 182 | <sect2 role="content">
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| 183 | <title>Contents</title>
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| 184 |
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| 185 | <segmentedlist>
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| 186 | <segtitle>Installed Programs</segtitle>
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| 187 | <segtitle>Installed Libraries</segtitle>
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[c3c56b2] | 188 | <segtitle>Installed Directories</segtitle>
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[8bc3edae] | 189 |
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| 190 | <seglistitem>
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[c627795] | 191 | <seg>
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[8ed30d52] | 192 | blkdeactivate, dmeventd (optional), dmsetup, fsadm, lvm, lvmconf,
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[e9ca6e5d] | 193 | lvmdump, and vgimportclone. There are also numerous symbolic links to
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[71b7341f] | 194 | lvm that implement specific functionalities
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[c627795] | 195 | </seg>
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| 196 | <seg>
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[a037dab] | 197 | libdevmapper.so, liblvm2app.so and liblvm2cmd.so; optional:
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| 198 | libdevmapper-event.so, libdevmapper-event-lvm2.so,
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| 199 | libdevmapper-event-lvm2mirror.so, libdevmapper-event-lvm2snapshot.so,
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[80454f5] | 200 | libdevmapper-event-lvm2raid.so, and libdevmapper-event-lvm2thin.so
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[c627795] | 201 | </seg>
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[c3c56b2] | 202 | <seg>
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[a037dab] | 203 | /etc/lvm and
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| 204 | /lib/device-mapper (optional)
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[c3c56b2] | 205 | </seg>
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[8bc3edae] | 206 | </seglistitem>
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| 207 | </segmentedlist>
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| 208 |
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| 209 | <variablelist>
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| 210 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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| 211 | <?dbfo list-presentation="list"?>
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[61b95ac4] | 212 |
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| 213 | <?dbhtml list-presentation="table"?>
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[8bc3edae] | 214 |
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[8ed30d52] | 215 | <varlistentry id="blkdeactivate">
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| 216 | <term><command>blkdeactivate</command></term>
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| 217 | <listitem>
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| 218 | <para>
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| 219 | utility to deactivate block device.
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| 220 | </para>
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| 221 | <indexterm zone="lvm2 blkdeactivate">
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| 222 | <primary sortas="b-blkdeactivate">blkdeactivate</primary>
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| 223 | </indexterm>
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| 224 | </listitem>
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| 225 | </varlistentry>
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| 226 |
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[a037dab] | 227 | <varlistentry id="dmeventd">
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| 228 | <term><command>dmeventd</command></term>
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| 229 | <listitem>
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| 230 | <para>
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| 231 | (optional) is the Device Mapper event daemon.
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| 232 | </para>
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| 233 | <indexterm zone="lvm2 dmeventd">
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| 234 | <primary sortas="b-dmeventd">dmeventd</primary>
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| 235 | </indexterm>
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| 236 | </listitem>
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| 237 | </varlistentry>
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| 238 |
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[8bc3edae] | 239 | <varlistentry id="dmsetup">
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| 240 | <term><command>dmsetup</command></term>
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| 241 | <listitem>
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[c627795] | 242 | <para>
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| 243 | is a low level logical volume management tool.
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| 244 | </para>
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[8bc3edae] | 245 | <indexterm zone="lvm2 dmsetup">
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| 246 | <primary sortas="b-dmsetup">dmsetup</primary>
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| 247 | </indexterm>
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| 248 | </listitem>
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| 249 | </varlistentry>
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| 250 |
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| 251 | <varlistentry id="fsadm">
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| 252 | <term><command>fsadm</command></term>
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| 253 | <listitem>
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[c627795] | 254 | <para>
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| 255 | is an utility used to resize or check filesystem on a device.
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| 256 | </para>
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[8bc3edae] | 257 | <indexterm zone="lvm2 fsadm">
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| 258 | <primary sortas="b-fsadm">fsadm</primary>
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| 259 | </indexterm>
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| 260 | </listitem>
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| 261 | </varlistentry>
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| 262 |
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| 263 | <varlistentry id="lvm">
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| 264 | <term><command>lvm</command></term>
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| 265 | <listitem>
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[c627795] | 266 | <para>
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| 267 | provides the command-line tools for <application>LVM2</application>.
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| 268 | Commands are implemented via sympolic links to this program to
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| 269 | manage physical devices (pv*), volume groups (vg*) and logical
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| 270 | volumes (lv*).
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| 271 | </para>
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[8bc3edae] | 272 | <indexterm zone="lvm2 lvm">
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| 273 | <primary sortas="b-lvm">lvm</primary>
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| 274 | </indexterm>
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| 275 | </listitem>
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| 276 | </varlistentry>
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| 277 |
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| 278 | <varlistentry id="lvmconf">
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| 279 | <term><command>lvmconf</command></term>
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| 280 | <listitem>
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[c627795] | 281 | <para>
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[0d7900a] | 282 | is a script that modifies the locking configuration in
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[c627795] | 283 | the <application>LVM2</application> configuration file.
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| 284 | </para>
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[8bc3edae] | 285 | <indexterm zone="lvm2 lvmconf">
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| 286 | <primary sortas="b-lvmconf">lvmconf</primary>
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| 287 | </indexterm>
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| 288 | </listitem>
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| 289 | </varlistentry>
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| 290 |
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| 291 | <varlistentry id="lvmdump">
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| 292 | <term><command>lvmdump</command></term>
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| 293 | <listitem>
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[c627795] | 294 | <para>
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| 295 | is a tool used to dump various information concerning
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| 296 | <application>LVM2</application>.
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| 297 | </para>
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[8bc3edae] | 298 | <indexterm zone="lvm2 lvmdump">
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| 299 | <primary sortas="b-lvmdump">lvmdump</primary>
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| 300 | </indexterm>
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| 301 | </listitem>
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| 302 | </varlistentry>
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| 303 |
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| 304 | <varlistentry id="vgimportclone">
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| 305 | <term><command>vgimportclone</command></term>
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| 306 | <listitem>
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[c627795] | 307 | <para>
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| 308 | is used to import a duplicated VG (e.g. hardware snapshot).
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| 309 | </para>
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[8bc3edae] | 310 | <indexterm zone="lvm2 vgimportclone">
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| 311 | <primary sortas="b-vgimportclone">vgimportclone</primary>
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| 312 | </indexterm>
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| 313 | </listitem>
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| 314 | </varlistentry>
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| 315 |
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| 316 | <varlistentry id="libdevmapper">
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| 317 | <term><filename class='libraryfile'>libdevmapper.so</filename></term>
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| 318 | <listitem>
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[c627795] | 319 | <para>
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| 320 | contains the <application>Device Mapper</application> API
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| 321 | functions.
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| 322 | </para>
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[8bc3edae] | 323 | <indexterm zone="lvm2 libdevmapper">
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| 324 | <primary sortas="c-libdevmapper">libdevmapper.so</primary>
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| 325 | </indexterm>
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| 326 | </listitem>
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| 327 | </varlistentry>
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| 328 |
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| 329 | </variablelist>
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| 330 |
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| 331 | </sect2>
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| 332 |
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| 333 | </sect1>
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