Hi, On 16/01/2019 09:02, Brian Topping wrote:
> I’m looking at writes to a fragile SSD on a mon node, > /var/lib/ceph/mon/ceph-{node}/store.db is the big offender at the > moment. > Is it required to be on a physical disk or can it be in tempfs? One > of the log files has paxos strings, so I’m guessing it has to be on > disk for a panic recovery? Are there other options? Yeah, the mon store is worth keeping ;-) It can get quite large with a large cluster and/or big rebalances. We bought some extra storage for our mons and put the mon store onto dedicated storage. Regards, Matthew -- The Wellcome Sanger Institute is operated by Genome Research Limited, a charity registered in England with number 1021457 and a company registered in England with number 2742969, whose registered office is 215 Euston Road, London, NW1 2BE. _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com