> Op 18 september 2017 om 10:14 schreef Max Krasilnikov <pseudo@xxxxxxxxxxxxx>: > > > Hello! > > In the times of Hammer it was actual to have 3 replicas for data to avoid > situation with non-identical data on different OSDs. Now we have full data and > metadata checksumming. So, is it actual now to have 3 replicas? Do the > checksumming get us out from requirement of 3 replicas? > No! You still need 3 replicas of your data. checksumming doesn't help against a disk failure, so the recommendation of 3x replication is still valid. Don't use 2x replication please. I've seen to much data go lost because of people running 2x replication :( Wido > Thanks a lot! > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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