LVM Resize a Filesystem: Difference between revisions
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== Linux == | == Linux == | ||
==== Extend an ext4 Filesystem ==== | ==== Extend an ext4 Filesystem ==== | ||
# Increase the size of the logical volume | # Increase the size of the logical volume | ||
#:<tt>'''# lvextend -L +<size>[M | G] /dev/<volume_group>/<logical_volume>'''</tt> | #:<tt>'''# lvextend -L +<size>[M | G] /dev/<volume_group>/<logical_volume>'''</tt> | ||
# Resize the underlying filesystem | # Resize the underlying filesystem | ||
#: <tt>'''# resize2fs /dev/<volume_group>/<logical_volume>'''</tt> | #: <tt>'''# resize2fs /dev/<volume_group>/<logical_volume>'''</tt> | ||
==== Extend an xfs Filesystem ==== | ==== Extend an xfs Filesystem ==== | ||
# Increase the size of the logical volume | # Increase the size of the logical volume | ||
#:<tt>'''# lvextend -L +<size>[M | G] /dev/<volume_group>/<logical_volume>'''</tt> | #:<tt>'''# lvextend -L +<size>[M | G] /dev/<volume_group>/<logical_volume>'''</tt> | ||
# Resize the underlying filesystem | # Resize the underlying filesystem | ||
#: <tt>'''# xfs_growfs -d </path/to/filesystem>'''</tt> | #: <tt>'''# xfs_growfs -d </path/to/filesystem>'''</tt> | ||
==== Reduce an ext4 Filesystem ==== | ==== Reduce an ext4 Filesystem ==== | ||
# Note: You may have to change to runlevel 1 in order to unmount | # Note: You may have to change to runlevel 1 in order to unmount | ||
# Backup your data! | # Backup your data! | ||
# Dismount the filesystem before reducing the size | # Dismount the filesystem before reducing the size | ||
#: <tt>'''# umount /dev/<volume_group>/<logical_volume>'''</tt> | #: <tt>'''# umount /dev/<volume_group>/<logical_volume>'''</tt> | ||
# Force check the filesystem to ensure it is clean. '''DO NOT RUN <tt>e2fsck</tt> IF THE FILESYSTEM IS MOUNTED''' | # Force check the filesystem to ensure it is clean. '''DO NOT RUN <tt>e2fsck</tt> IF THE FILESYSTEM IS MOUNTED''' | ||
#: <tt>'''# e2fsck –f /dev/<volume_group>/<logical_volume>'''</tt> | #: <tt>'''# e2fsck –f /dev/<volume_group>/<logical_volume>'''</tt> | ||
# Reduce the filesystem | # Reduce the filesystem | ||
#: <tt>'''# resize2fs /dev/<volume_group>/<logical_volume> -<size>[M | G]'''</tt> | #: <tt>'''# resize2fs /dev/<volume_group>/<logical_volume> -<size>[M | G]'''</tt> | ||
# Reduce the logical volume | # Reduce the logical volume | ||
#: <tt>'''# lvreduce –L -<size>[M | G] /dev/<volume_group>/<logical_volume>'''</tt> | #: <tt>'''# lvreduce –L -<size>[M | G] /dev/<volume_group>/<logical_volume>'''</tt> | ||
# Re-check the filesystem to ensure it is clean | # Re-check the filesystem to ensure it is clean | ||
#: <tt>'''# e2fsck –f /dev/<volume_group>/<logical_volume>'''</tt> | #: <tt>'''# e2fsck –f /dev/<volume_group>/<logical_volume>'''</tt> | ||
# Mount the filesystem | # Mount the filesystem | ||
#: <tt>'''# mount /dev/<volume_group>/<logical_volume>'''</tt> | #: <tt>'''# mount /dev/<volume_group>/<logical_volume>'''</tt> | ||
Revision as of 18:53, 1 March 2017
AIX
Extend a Filesystem
- # chfs -a size=+<additional size>M <absolute path to filesystem>
Reduce a Filesystem
- # chfs -a size=-<reduced size>M <absolute path to filesystem>
Linux
Extend an ext4 Filesystem
- Increase the size of the logical volume
- # lvextend -L +<size>[M | G] /dev/<volume_group>/<logical_volume>
- Resize the underlying filesystem
- # resize2fs /dev/<volume_group>/<logical_volume>
Extend an xfs Filesystem
- Increase the size of the logical volume
- # lvextend -L +<size>[M | G] /dev/<volume_group>/<logical_volume>
- Resize the underlying filesystem
- # xfs_growfs -d </path/to/filesystem>
Reduce an ext4 Filesystem
- Note: You may have to change to runlevel 1 in order to unmount
- Backup your data!
- Dismount the filesystem before reducing the size
- # umount /dev/<volume_group>/<logical_volume>
- Force check the filesystem to ensure it is clean. DO NOT RUN e2fsck IF THE FILESYSTEM IS MOUNTED
- # e2fsck –f /dev/<volume_group>/<logical_volume>
- Reduce the filesystem
- # resize2fs /dev/<volume_group>/<logical_volume> -<size>[M | G]
- Reduce the logical volume
- # lvreduce –L -<size>[M | G] /dev/<volume_group>/<logical_volume>
- Re-check the filesystem to ensure it is clean
- # e2fsck –f /dev/<volume_group>/<logical_volume>
- Mount the filesystem
- # mount /dev/<volume_group>/<logical_volume>