Den fre 23 nov. 2018 kl 15:19 skrev Marco Gaiarin <[email protected]>: > > > Previous (partial) node failures and my current experiments on adding a > node lead me to the fact that, when rebalancing are needed, ceph > rebalance also on intra-node: eg, if an OSD of a node die, data are > rebalanced on all OSD, even if i've pool molteplicity 3 and 3 nodes. > > This, indeed, make perfectly sense: overral data scattering have better > performance and safety. > > > But... there's some way to se to crush 'don't rebalance in the same node, go > in degradated mode'? >
The default crush rules with replication=3 would only place PGs on separate hosts, so in that case it would go into degraded mode if a node goes away, and not place replicas on different disks on the remaining hosts. -- May the most significant bit of your life be positive. _______________________________________________ ceph-users mailing list [email protected] http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
