when i was younger i was super proud that i could replace my disk while i kept working on the device. i would put the new disk into my LVM volume group moved al

when i was younger i was super proud that i could replace my disk while i kept working on the device. i would put the new disk into my LVM volume group moved all extends to the new disk and dropped the old disk out of the VG afterwards, when done i could just unplug it and be done without halting work except for kicking off the process.