Filesystems "gone" After fixing GUI Loop due to Full Root File System

Long time lurker, first time poster. Forgive me, I do not know all the right terminology or logs to post

Recently ran into the GUI login loop due to a very full boot disk. This likely took place because an Rsync push to a separate server didn't work correctly, and filled the boot disk

I have used this excellent guide by macom in the past: [How-To] Fix full OS filesystem - GUI login loop , in conjunction with this post: RE: [How-To] Fix full OS filesystem - GUI login loop within that same thread.

I mounted /srv to a different place in order to see hidden contents:

mkdir -p /mnt/rootfs                  # create an additional mount point for your root file system
mount --bind /srv /mnt/rootfs         # mount /srv to the new mount point
cd /mnt/rootfs                        # go to the place where the real contents of /srv can be seen
du -hxd1 /mnt/rootfs | sort -hr       # check disk usage in the mount point

delved into a culprit directory and deleted only that directory with ' rm -r ' to free space.

I then attempted to unmount the file system with umount, but it stated it was busy.

I went from the following list of Filesystems, seen with the df command:

Please note the systems that were 93% full in the above screenshot. These appear to all be part of the RAID configuration.

Now, these file systems no longer appear to be 93% full.

The file filesystems that originally made up the VOL2:44d1139e-606f-47a5-ad5f-9c28f388706c Filesystem mounted on /srv/mergerfs/VOL2:

included

/dev/sdc1

/dev/sdb1

/dev/sda1

/dev/md0

I ran df -halT just now and found that those same Filesystems,

/dev/sdc1

/dev/sdb1

/dev/sda1

/dev/md0

are still mounted, yet do not show their Used, Available or Use%. My previous RAID doesn't appear in the GUI.

Thank you for any help.