No, this isn’t a MySpace joke, we’re waaaay too old and sensible for that.
I was browsing my Backup Synology and trying to figure out why it was showing no space available on a 30TB volume. I don’t have that many linux iso’s, do I?
The answer turned out to be in this magical post – thanks Martin Chou!
In your Control Panel/ Terminal & SNMP, turn on SSH
Then on a machine on your local network, log in via SSH as an admin user on the Synology. I’ve made the entries you need to type bold
Input that admin user’s password and you’re in!
Upgrade yourself to root using sudo
myadmin@Backups:/$ sudo -i
(you’ll be asked for the myadmin password again, enter it)
Then change directories to the volume you are interested in-
root@Backups:~# cd /volume2
Then find the disk usage using this command
root@Backups:/volume2# du -h -d1
Guess what I found? I’d been playing with Synology Drive a while back and had shared most of the folders on the Backup NAS, and set the maximum number of ‘version’. So it was full of unnecessary versions of my backups… I saved nearly 9TB!
Have a look-
Still not fixed?
OK, after doing all that you’re very pleased with yourself, but you STILL don’t have any free space? You can –
1. Wait a while for the operating system to catch up
2. Delete the share if there’s nothing left in it
3. Or you can kick off a Disk Scrubbing operation
On DSM 6.2 it’s in Storage Manager / Storage Pool/ Data Scrubbing/ Action- ‘Manual Run’
Same. After all that work I couldn’t get the Synology to release that space back. In the end I had to completely uninstall Synology Drive. It worked!
This was fine for me because the NAS is only used for Backups…
To do that, go to Package Manager / Installed/ <select Synology Drive> Click on the right hand side of the ‘Open’ button and select ‘Uninstall’
Don’t forget to go back and turn SSH off after doing this- or you’ll be reminded every month in your security scan…