[ceph-users] Does the number of PGs affect the total usable size of a pool?

Hello guys, Let's say I have a cluster with 4 nodes with 24 SSDs each, and a single pool that consumes all OSDs of all nodes. After adding another host, I noticed that no extra space was added. Can this be a result of the number of PGs I am using? I mean, when adding more hosts/OSDs, should I always consider increasing the number of PGs from a pool?