But why do you have only 8 gigs of swap? the OSD's main job is file serving, so you need to use as much ram as possible to act as virtual tiered storage (cavea

But why do you have only 8 gigs of swap? the OSD's main job is file serving, so you need to use as much ram as possible to act as virtual tiered storage (caveats apply) so having a large swap to hold useful but not often used bits of ram is really useful for performance. Our file servers used to have ram+~30% as swap.