This example will copy /dev/sde1 mounted on /backup to /dev/sdf1 mounted on /replace and afterwards change mount point, logical volume and volume group names to the source names.

• fdisk /dev/sdf
• n to create a new partition, select 1 and accept all defaults
• w to write the new partition table and quit
• mkfs.ext3 /dev/sdf1
• lvm
• lvm > pvcreate /dev/sdf1
• lvm > vgcreate vg_replace /dev/sdf1
• lvm > vgdisplay vg_replace to check ### of free extents
• lvm > lvcreate -l### vg_replace (do not use -LxxGB, use size with -l### which is number of extents)
• lvm > lvrename vg_replace lvol0 lv_replace
• lvm > vgcfgbackup to backup volume group configurations
• lvm > exit
• mkfs -t ext3 /dev/vg_replace/lv_replace
• mkdir /replace
• mount /dev/vg_replace/lv_replace /replace

• rsync -avH /backup/* /replace/
• umount /backup
• umount /replace
• lvm
• lvm > lvrename vg_backup/lv_backup lv_backup1
• lvm > lvchange vg_backup/lv_backup1 -an
• lvm > vgrename vg_backup vg_backup1
• lvm > lvchange vg_backup1/lv_backup1 -ay
• lvm > lvrename vg_replace/lv_replace lv_backup
• lvm > lvchange vg_replace/lv_backup -an
• lvm > vgrename vg_replace vg_backup
• lvm > lvchange vg_backup/lv_backup -ay
• lvm > exit
• mount /dev/vg_backup/lv_backup /backup -o noatime,user_xattr

• prepare the new disks with a partition (see above), do not create the filesystem yet
• mdadm –create –verbose /dev/md5 –level=1 –raid-devices=2 /dev/sde /dev/sdf
• watch the progress with cat /proc/mdstat
• when finished, restart the computer (shutdown -r now)