Ganalda IV is an inhabited planet.
In 2310 or 2311, Ganalda IV was the location of a rebellion against Klingon rule. The rebellion was crushed by General Gorak, who executed the rebel leader himself. (ST - The Lost Era novel: Serpents Among the Ruins)
In the alternate reality created by the Narada's temporal incurstion, the 2250s saw a Klingon fleet travel from Phaedus IV to Ganalda IV (Starfleet believing it to be a preemptive strike) and then begin deployment. After this point, Starfleet agent John Harrison began acting as a rogue operative. (doc|Top Secret Security Review)