The gluster bricks directory should segregate used and free bricks #252
Description
Gluster bricks section in etcd, located at "clusters/cluster-id/nodes/node-id/GlusterBricks/" currently lists all the bricks available on the node. There is no way to figure out if it is a used/free brick. So we should have sections under this to segregate used and free bricks.
We should have 3 sections under glusterBricks directory namely:
all : should contain all the bricks with complete info about the bricks
free: should contain all the free bricks with link to actual brick in "all" section
used: should contain all the used bricks with link to actual brick in "all" section