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Resizing File Systems
5
When your data needs grow for a volume, you might need to increase the amount of space allocated
to its file system.
5.1 Guidelines for Resizing
Resizing any partition or file system involves some risks that can potentially result in losing data.
WARNING: To avoid data loss, make sure to back up your data before you begin any resizing task.
Consider the following guidelines when planning to resize a file system.
5.1.1 File Systems that Support Resizing
The file system must support resizing in order to take advantage of increases in available space for
®
the volume. In SUSE
Linux Enterprise Server 11, file system resizing utilities are available for file
systems Ext2, Ext3, and ReiserFS. The utilities support increasing and decreasing the size as
follows:
File System Support for Resizing
Table 5-1
File System
Ext2
Ext3
ReiserFS
5.1.2 Increasing the Size of a File System
You can grow a file system to the maximum space available on the device, or specify an exact size.
Make sure to grow the size of the device or logical volume before you attempt to increase the size of
the file system.
Utility
resize2fs
resize2fs
Increase Size (Grow)
Yes, offline only
Yes, online or offline
Yes, online or offline
Decrease Size (Shrink)
Yes, offline only
Yes, online or offline
Yes, offline only
Resizing File Systems
5
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