mirror of https://github.com/tLDP/LDP
108 lines
2.7 KiB
XML
108 lines
2.7 KiB
XML
<appendix id="xfsfsim"><title>XFS file system interface module</title>
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<para>
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The XFS FSIM lets EVMS users create and manage XFS file systems from
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within the EVMS interfaces. In order to use the XFS FSIM, version 2.0.0 or
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later of the XFS utilities must be installed on your system. The latest
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version of XFS can be found at
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<ulink url="http://oss.sgi.com/projects/xfs/">http://oss.sgi.com/projects/xfs/</ulink>.
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</para>
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<sect1 id="createxfsfsim"><title>Creating XFS file systems</title>
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<para>
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XFS file systems can be created with <command>mkfs</command> on any EVMS
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or compatibility volume that does not already
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have a file system. The following options are available for creating
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XFS file systems:</para>
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<variablelist>
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<varlistentry><term>vollabel</term>
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<listitem>
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<para>Specify a volume label for the file system. The default is none.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry><term>journalvol</term>
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<listitem>
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<para>Specify the volume to use for an external journal.
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The default is none.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry><term>logsize</term>
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<listitem>
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<para>
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Specify the inline log size (in MB). This option is only available if
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the journalvol option is not set. The default is 4 MB; the
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allowed range is 2 to 256 MB.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</sect1>
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<sect1 id="checkxfsfsim"><title>Checking XFS file systems</title>
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<para>
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The following options are available for checking XFS file systems with
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<command>fsck</command>:
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</para>
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<variablelist>
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<varlistentry><term>readonly</term>
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<listitem>
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<para>Check the file system is in read-only mode. Report but do not
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fix errors. The default is false.</para>
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</listitem>
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</varlistentry>
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<varlistentry><term>verbose</term>
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<listitem>
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<para>Display details and debugging information during the check.
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The default is false.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</sect1>
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<sect1 id="removexfsfsim"><title>Removing XFS file systems</title>
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<para>
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An XFS file system can be removed from its volume if the file system is
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unmounted. This operation involves erasing the superblock from the volume
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so the file system will not be recognized in the future. There are no
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options available for removing file systems.
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</para>
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</sect1>
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<sect1 id="expandxfsfsim"><title>Expanding XFS file systems</title>
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<para>
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An XFS file system is automatically expanded when its volume is expanded.
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However, XFS only allows the volume to be expanded if it is mounted,
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because XFS performs all of its expansions online.
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</para>
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</sect1>
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<sect1 id="shrinkxfsfsim"><title>Shrinking XFS file systems</title>
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<para>
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At this time, XFS does not support shrinking its file systems.
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Hence, volumes with XFS file systems cannot be shrunk.
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</para>
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</sect1>
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</appendix>
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