vgs displays everything EXCEPT gluster_vg1
"dmsetup ls" does not list the VG in question. That is why I couldn't run
the lvchange command. They were not active or even detected by the system.
OK, I found my problem, and a solution:
https://access.redhat.com/solutions/3251681
# cd /var/log
# grep -ri gluster_vg1-lvthinpool-tpool
My metadata is 100% full !!!
Now, how do I find out how big my original metadata size was so I can make the new one the
correct size?