Decomissioning hosts

echo -n "multipath device to remove: " && export LC_ALL=C && read path && dm=$(sudo multipath -ll | grep "$path " | awk '{print $3}') && cd /sys/devices/virtual/block/$dm/slaves && devices=$(ls -1) && blockdev --flushbufs /dev/$dm && multipath -f $path && for device in $(echo $devices); do blockdev --flushbufs /dev/$device; echo 1 > "/sys/block/$device/device/delete"; done

Three months after decomissioning: * Remove backups