/dev/md6 17179740444 12749911728 0 100% /home
Still seems to be wrong (the total space & space used seem to indicate that you have free space, the
% sais it's full).
Rest seems OK though.
I suppose you were using the LVM to create the large (17TB) partition for the home directories.
To me, it seems that LVM has created a 17TB volume, but you've only allocated around 13TB of it into the /home partition. So, maybe you need to add some disk blocks to the /dev/md6 partition (ie extend the partition).
But I'm not sure.
My proposed solutions:
1. You may want to check your LVM configuration, ie check the contents of the volume group and the physical volumes, extend the filesystem if needed (this is needed each time you add a new disk to the volume group).
I've seen some pv* and vg* commands with Google about this. Not sure which you'll need to use. I personnally haven't configured LVM yet, I only know the basics behind it.
But please don't change anything, unless you're absolutely sure it needs to be changed. Messing up the LVM configuration can really mess up your hard disk and your Linux system.
2. Do a
to see how many inodes you have left on the 17TB volume. If you don't have any more left, you can't create new files/folders either.
In short, I recommend that you do some researching on LVM and it's configuration. I'm no expert in those matters.
Maybe someone else on this forum can help you out.