Hi Everybody (Hi Dr. Nick),
TL/DR: Is is possible to have a "2-Layer" Crush Map?
I think it is (although I'm not sure about how to set it up).
My issue is that we're using 4-2 Erasure coding on our OSDs, with 7-OSDs
per OSD-Node (yes, the Cluster is handling things AOK - we're running at
about 65-70% utilisation of CPU, RAM, etc, so no problem there).
However, we only have 3 OSD-Nodes, and I'd like to ensure that each Node
has 2 of each pool's OSDs so that if we loose a Node the other 2 can
take up the slack. I know(?) that with 4-2 EC we can loose 2 out of the
6 OSDs, but I'm worried that if we loose a Node it'll take more than 2
OSDs with it, rendering us "stuffed" (stuffed: a technical term which is
used as a substitute for a four-letter word rhyming with "truck") 😁
Anyone have any pointers?
Cheers
Dulux-Oz
_______________________________________________
ceph-users mailing list -- ceph-users@xxxxxxx
To unsubscribe send an email to ceph-users-leave@xxxxxxx
