Question

A server has an ext4 filesystem on the logical volume /dev/vg0/data currently mounted at /data. You need to shrink this logical volume from 200 GB to 120 GB to free space in the volume group for another LV. The filesystem currently uses about 80 GB. Which sequence correctly and safely reduces the logical volume without data loss?

Accepted Answer

Unmount /data, run e2fsck -f on the device, resize2fs to 120G, then lvreduce -L 120G on the LV

Answer

Run resize2fs online while /data is mounted, then lvreduce -L 120G on the LV

Answer

Run lvreduce -L 120G first, then resize2fs to grow the filesystem back to the new size

Answer

Unmount /data, run xfs_growfs to 120G, then lvreduce -L 120G on the LV