Moving from file-based storage (loop0) back to dir-based storage

Running LXC 2.12 on Ubuntu 16.04 and noticed a few of our container servers are using file-based storage. The /var/lib/lxd directory is mounted on a BTRFS filesystem, but the default LXD storage pool is using a disk image file in /var/lib/lxd/storage-pools/default

The output from “df” show

Filesystem                       1K-blocks      Used  Available Use% Mounted on
udev                               2519228         0    2519228   0% /dev
tmpfs                               507848     62744     445104  13% /run
/dev/sda1                         11402520   3614292    7185964  34% /
tmpfs                              2539232         0    2539232   0% /dev/shm
tmpfs                                 5120         0       5120   0% /run/lock
tmpfs                              2539232         0    2539232   0% /sys/fs/cgroup
/dev/sdb                         104857600  18499736   84335912  18% /var/lib/lxd
cgmfs                                  100         0        100   0% /run/cgmanager/fs
tmpfs                                  100         0        100   0% /var/lib/lxd/shmounts
tmpfs                                  100         0        100   0% /var/lib/lxd/devlxd
/dev/loop0                        15728640  12429324    2892692  82% /var/lib/lxd/storage-pools/default  
tmpfs                               507848         0     507848   0% /run/user/0

I need to re-create the default storage pool back on /var/lib/lxd and am looking for a way to make this happen with as little downtime as possible. From what I have read, I can probably create a new storage pool called default-1 as a “dir” type pool with a directory of /var/lib/lxd/storage-pools/default-1 then move containers from default to default-1.

Does this sound reasonable? If so, how can I rename “default-1” storage pool to “default” to match the other servers? Would I simply create delete the “default” storage pool after moving all containers over to default-1, then move them from default-1 to default?