Hello Khodayar thx fot the fast answer, that helped a lot. only last question: we have two datacenter, a small one with usv(apc) and a big one with a power generator. i want to move two osd nodes to the big datacenter with power generator and one node to the smal datacanter with usv(apc) the reasona are we wanna do this for maintainance things and maybe power or network failures and HA my question is what happens if we have a power problem in the big datacenter, will the node1 in the small datacenter still be a full replicated node and accessible to all client nodes? or will the storage go down? thx in advance, hfreidhof _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx