The Ceph team has chosen to default to N+2 redundancy. This is analogous to RAID 6 (NOT RAID 1).
I have to fundamentally disagree; Ceph's replica size of 3 behaves more like RAID1 with 3 mirrors, than it would RAID6. Raid 6 would be more in line with Ceph's erasure coding of X+2, e.g., 3+2.
Raid1 does not imply 2 disks, it can easily be 3 or 4, and up, depending on the raid controller.
Regards, Hans _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-le...@ceph.io
