LVM Resize a Filesystem

AIX

Extend a Filesystem

1. # chfs -a size=+<additional size>M <absolute path to filesystem>

Reduce a Filesystem

1. # chfs -a size=-<additional size>M <absolute path to filesystem>

Linux

Extend a Filesystem

1. # lvextend -L +<size in MB>M /dev/rootvg/<logical volume>
2. # resize2fs /dev/<volume group>/<logical volume>

Reduce a Filesystem

1. Note: You may have to change to runlevel 1 in order to unmount.
2. This can be done online, but it is advised to dismount the filesystem before reducing the size.
   1. # umount /dev/<volume group>/<logical volume>
3. Force check the filesystem to ensure it is clean. DO NOT RUN e2fsck IF THE FILESYSTEM IS MOUNTED.
   1. # e2fsck –f /dev/<volume group>/<logical volume>
4. Reduce the filesystem.
   1. # resize2fs /dev/<volume group>/<logical volume> <size in MB>M
5. Reduce the logical volume.
   1. # lvreduce –L -<size in MB>M /dev/<volume group>/<logical volume>
6. Mount the filesystem.
   1. # mount /dev/<volume group>/<logical volume>

Further Reading

1. IBM pSeries and AIX Information Center