I had 3 drives in a pool with aufs. If you viewed the filesystem the aufs file system showed up with 4.5TB of space in total. I shutdown the machine and added a 3TB drive. Rebooted, made another ext4 filesystem on that drive and mounted it. I then went to aufs and did expand on the existing pool adding the new drive. It looks to have added just fine.
When I however go back to the filesystem view my aufs file system is still 4.5TB in total.
The file system was "in use" via samba and nfs when I expanded it so I'm not sure if that's causing issues. Or do I just need to reboot before it will show up in the total?
Any suggestions would be appreciated.