I bought a new set of disk for my HP Microserver Gen10, 2x 10Tb WD HDD, after setting them in RAID 1, I had the necessity migrate the currently running Virtual Machines without creating downtimes, loosing data and of course not waste much time to perform this migration.
Lucky for me I have setup the Microserver Gen10 with LVM this will simplify a lot the procedure that I gonna explain to you below.
First of all I have initialized the physical volume with the command:
After this I have extended my logical volume called “vms” with vgexent command:
vgextend vms /dev/sdc
After that I started the migration of all Logical Volume from physical volume /dev/sdb to the new physical volume /dev/sdc:
pvmove -b /dev/sdb /dev/sdc
I started then to monitor the progress of the migration with:
progress lvs -a -o+devices
When migration finished I removed the disk from the volume group and then removed the LVM signature from the disk:
vgreduce vms /dev/sdb pvremove /dev/sdb
That’s it! Now you can remove the HDD/HDDs from the system, hope this guide have helped you.