Resizing a file system <a class="indexterm" name="id411452"></a><a class="indexterm" name="id411459"></a>


Resizing a file system
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Resizing a file system

If you need to extend or shrink a VxFS file system, you can use the fsadm command.

If a VxFS file system requires more space, you can use this procedure to extend the size of the file system. If a VxFS File System is too large and you need the space elsewhere, you can use this procedure to shrink the file system.

Remember to increase the size of the underlying device or volume before increasing the size of the file system.

See the Veritas Volume Manager Administrator's Guide.Veritas Volume Manager Administrator's Guide.

Before resizing a file system, revew the following:

Prerequisites	This task requires a mounted file system. You must know either the desired size or the amount of space to add to or subtract from the file system size.
Usage notes	See the format(1M) manual page. See the fsadm_vxfs(1M) manual page.

To resize a file system

Use fsadm command as follows:
```
# /opt/VRTS/bin/fsadm -F vxfs [-b newsize] \
        [-r rawdev] /mount_point
```
where:
- newsize is the size (in sectors) to which the file system will increase or shrink
- rawdev specifies the name of the raw device if there is no entry in /etc/vfstab and fsadm cannot determine the raw device
- /mount_point is the location where the file system is mounted
For example, to extend the file system /db01 to 2 GB:
```
# /opt/VRTS/bin/fsadm -F vxfs -b 2g /db01
```
Note:

See the Veritas File System Administrator's Guide and fsadm_vxfs (1M) manual page for information on how to perform common file system tasks using fsadm.

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