>> At a Ceph Day in Hillsboro someone, forgive me for not remembering >> who, spoke of running production on servers with 2GB RAM per OSD. He >> said that it was painful, required a lot of work, and would not >> recommend it. ymmv. > > Yeah, I wouldn't want to go below 4GB RAM.
FWIW, I have been running several production clusters with osd_memory_target = 3GB without issues (with Nautilus / Bluestore, 4TB to 12TB hard drives and from 300 to 1400 OSDs per cluster). I have an external caching layer for hot data though, so that cache misses on Ceph are the common case and not an issue. Eric _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-le...@ceph.io
