Debian Configuration :: Jessie LVM - Full Disk / Large Logs And GParted

So, my issues since upgrading to Jessie seem to compound. When I fix one issue, two more arise. Right now, I have a full system disk. How it got so full. So I started poking around. I ran

Code: Select all find / -type f -size +50M -exec ls -lh {} ; | awk '{ print $NF ": " $5 }'

Found a few files I could delete, and did, but I also found Code: Select all/var/log/syslog.1: 33G
/var/log/messages: 33G
/var/log/user.log: 33G

What I find strange is that they're all exactly 33G each. So that accounts for the missing 99GB I deleted them, however only recovered 27Gb. Whats weird is when I type df -h I get

Code: Select allFilesystem      Size  Used Avail Use% Mounted on
/dev/dm-0       106G   74G   27G  74% /
udev             10M     0   10M   0% /dev
tmpfs           3.2G  9.7M  3.2G   1% /run
tmpfs           7.9G     0  7.9G   0% /dev/shm
tmpfs           5.0M  4.0K  5.0M   1% /run/lock
tmpfs           7.9G     0  7.9G   0% /sys/fs/cgroup
/dev/sda1       228M   27M  189M  13% /boot
/dev/sdb1       1.9T   62G  1.8T   4% /media/ntfs
tmpfs           1.6G     0  1.6G   0% /run/user/0

What are the tmpfs's and how can I reclaim that space, and what is /dev/dm-0 and why is that taking up so much space?

I have 2 LVGs vgdisplay -v

Code: Select allroot@SETV-007-WOWZA:~# vgdisplay -v
    DEGRADED MODE. Incomplete RAID LVs will be processed.
    Finding all volume groups
    Finding volume group "WOWZASERVER"

[Code] ....

After deleting the log files, I was able to regain access to my GDM session. But I still cant find out what /dev/dm-0 is, and where all the 75 GB is being taken up.

I just noticed, however, even though I can access the drive A-OK via browser, terminal, and web services (Our wowza) when I enter gParted I get this error for sda, my primary OS drive!

Code: Select all  Libparted Bug Found!

Error informing the kernel about modifications to partition /dev/sda2 -- Invalid argument. This means Linux won't know about any changes you made to /dev/sda2 until you reboot -- so you shouldn't mount it or use it in any way before rebooting

Now that I'm in gParted I see 3 partitions: [URL] ....

It reports now, that I have used ALL of my disk space.

Post Log delete, and fresh reboot, this is what Code: Select alldf -h outputs

Code:
Select all Filesystem      Size  Used Avail Use% Mounted on
/dev/dm-0       106G  8.7G   92G   9% /
udev             10M     0   10M   0% /dev
tmpfs           3.2G  9.8M  3.2G   1% /run
tmpfs           7.9G   80K  7.9G   1% /dev/shm
tmpfs           5.0M  4.0K  5.0M   1% /run/lock

[Code] ....

What the heck is going on?