RHCSA RHEL 8 – Extend existing logical volumes

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This video is based on RHEL 8. Video to cover the section ‘Extend existing logical volumes’ for the RHCSA (Red Hat Certified System Administrator).

More information on the required learning: http://bit.ly/rhcsa8

Notes from the video:

Check current logical volume size:

# lvs

or

# lvdisplay

Confirm enough room in the virtual volume:

# vgs

or

# vgdisplay

To extend the logical volume:

# lvextend -L+2G /dev/vg1/lv1

Check that the volume has extened:

# lvdisplay

Confirm the filesystem type used on the logical volume:

# df -Th

Once confirmed run either the xfs filesystem resize command or the ext3/4:

EXT3/4:

# resize2fs /dev/vg1/lv1

XFS (use the mount point):
# xfs_growfs /mnt

Confirm the resize is successful:

# df -h