All good points (also replying to Frank Schilder)
On 11/16/20 2:36 PM, Janne Johansson wrote:
Not trying to say you don't understand this, but rather that people who
run small ceph clusters tend to start out with R=2 or K+1 EC because the
larger faults are easier to imagine.
TBH, I think I did kind of underestimate this with EC. The implications
were clear-cut for me in the case of 2xReplication.
My wrong rationale was, I never had down time with my 2+1 EC with
min_size=2, even when doing maintenance so I'm doing this right! But the
min_size should of course be '3' for data integrity, for reasons that
you and Frank have described so well in this thread.
Thanks.
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