Resizing a file system and the underlying volume


Resizing a file system and the underlying volume
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The fsadm command resizes the file system only. If you attempt to use fsadm to make the file system the same size or larger than the underlying volume, the fsadm command will fail. To resize the file system and its underlying volume, use the vxresize command instead.

Warning:

Resizing a volume with a usage type other than FSGEN or RAID5 can result in data loss. If such an operation is required, use the -f option to forcibly resize such a volume.

Before resizing a file system and the underlying volume, review the following:

Prerequisites

You must know the new desired size of the file system.

Usage notes

vxresize works with VxFS, ext2, ext3, and reiserfs file systems only.
If the file system is mounted or VxFS, you can grow or shrink the size. If the file system is Lite-VxFS, ext2, ext3, or reiserfs, you cannot grow or shrink the size.
If the file system is unmounted and VxFS or Lite-VxFS, you cannot grow or shrink the size. If the file system is ext2, ext3, or reiserfs, you can grow or shrink the size.
When resizing large volumes, vxresize may take a long time to complete.
Resizing a volume with a usage type other than FSGEN or RAID5 can result in data loss. If such an operation is required, use the -f option to forcibly resize such a volume.
You cannot resize a volume that contains plexes with different layout types.
See the vxresize (1M) manual page for more details.

To resize a file system and the underlying volume

Use the vxresize command as follows:
```
# /etc/vx/bin/vxresize -g disk_group -b -F vxfs -t \
homevolresize homevol volume_size disk_name disk_name
```
For example, to extend a 1-gigabyte volume, homevol, that contains a VxFS file system, to 10 gigabytes using the spare disks disk10 and disk11, enter:
```
# /etc/vx/bin/vxresize -b -F vxfs -t homevolresize homevol 10g \
disk10 disk11
```
The -b option specifies that this operation runs in the background. Its progress can be monitored by specifying the task tag homevolresize to the vxtask command.