/[gentoo]/xml/htdocs/doc/en/handbook/hb-install-filesystems.xml
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1<?xml version='1.0' encoding="UTF-8"?> 1<?xml version='1.0' encoding="UTF-8"?>
2<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/handbook/hb-install-filesystems.xml,v 1.12 2012/10/28 10:29:03 swift Exp $ --> 2<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/handbook/hb-install-filesystems.xml,v 1.13 2013/02/23 18:38:22 swift Exp $ -->
3<!DOCTYPE included SYSTEM "/dtd/guide.dtd"> 3<!DOCTYPE included SYSTEM "/dtd/guide.dtd">
4 4
5<included> 5<included>
6 6
7<version>10</version> 7<version>11</version>
8<date>2012-10-28</date> 8<date>2013-02-23</date>
9 9
10<section id="filesystemsdesc"> 10<section id="filesystemsdesc">
11<title>Filesystems</title> 11<title>Filesystems</title>
12<body> 12<body>
13 13
99<p> 99<p>
100<b>ext3</b> is the journaled version of the ext2 filesystem, providing metadata 100<b>ext3</b> is the journaled version of the ext2 filesystem, providing metadata
101journaling for fast recovery in addition to other enhanced journaling modes like 101journaling for fast recovery in addition to other enhanced journaling modes like
102full data and ordered data journaling. It uses an HTree index that enables high 102full data and ordered data journaling. It uses an HTree index that enables high
103performance in almost all situations. In short, ext3 is a very good and 103performance in almost all situations. In short, ext3 is a very good and
104reliable filesystem. Ext3 is the recommended all-purpose all-platform
105filesystem. If you intend to install Gentoo on a 104reliable filesystem. If you intend to install Gentoo on a
106very small disk (less than 4GB), then you'll need to tell ext3 to reserve enough 105very small disk (less than 4GB), then you'll need to tell ext3 to reserve enough
107inodes when you create the filesystem. The <c>mke2fs</c> application uses the 106inodes when you create the filesystem. The <c>mke2fs</c> application uses the
108"bytes-per-inode" setting to calculate how many inodes a file system should have. 107"bytes-per-inode" setting to calculate how many inodes a file system should have.
109By running <c>mke2fs -j -T small /dev/&lt;device&gt;</c> the number of inodes will 108By running <c>mke2fs -j -T small /dev/&lt;device&gt;</c> the number of inodes will
110generally quadruple for a given file system as its "bytes-per-inode" reduces from 109generally quadruple for a given file system as its "bytes-per-inode" reduces from
121which improve large file performance and reduce fragmentation. Ext4 also provides 120which improve large file performance and reduce fragmentation. Ext4 also provides
122more sophisticated block allocation algorithms (delayed allocation and multiblock 121more sophisticated block allocation algorithms (delayed allocation and multiblock
123allocation) giving the filesystem driver more ways to optimise the layout of data 122allocation) giving the filesystem driver more ways to optimise the layout of data
124on the disk. The ext4 filesystem is a compromise between production-grade code 123on the disk. The ext4 filesystem is a compromise between production-grade code
125stability and the desire to introduce extensions to an almost decade old 124stability and the desire to introduce extensions to an almost decade old
126filesystem. 125filesystem. Ext4 is the recommended all-purpose all-platform filesystem.
127</p> 126</p>
128 127
129</body> 128</body>
130<body test="not(func:keyval('arch')='SPARC')"> 129<body test="not(func:keyval('arch')='SPARC')">
131 130

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