Hi Andras,
From what I can tell you can run crushtool with --test
http://docs.ceph.com/docs/master/man/8/crushtool/
(https://link.getmailspring.com/link/1533557996.local-a293f1fe-4d41-v1.3.0-fd741...@getmailspring.com/0?redirect=http%3A%2F%2Fdocs.ceph.com%2Fdocs%2Fmaster%2Fman%2F8%2Fcrushtool%2F&
Hi cephers,
Is there a way to see what a crush map change does to the PG mappings
(i.e. what placement groups end up on what OSDs) without actually
setting the crush map (and have the map take effect)? I'm looking for
some way I could test hypothetical crush map changes without any effect
on