Hi
I have been looking for info about "osd pool default size" and the
reason its 3 as default.
I see it got changed in v0.82 from 2 to 3,
Here its 2.
http://docs.ceph.com/docs/v0.81/rados/configuration/pool-pg-config-ref/
and in v0.82 its 3.
http://docs.ceph.com/docs/v0.82/rados/configuration/pool-pg-config-ref/
likewise "osd pool default min size" went from 1 to 1.5 which goes up to
2. (Default: 0, which means no particular minimum. If 0, minimum is
size - (size / 2).)
I've looked at the changelog for v0.82 but I cant find the reason for
this change. I'm interested to know why this change was made, I
understand 2 is less secure, but did something change which made it less
secure after v0.82?
It seems pretty ok if you compare it to a RAID5,6
Openstack users, and other users which host virtual images on ceph, do
you use the default "osd pool default min size = 3"?
_______________________________________________
ceph-users mailing list
ceph-users@xxxxxxxxxxxxxx
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
