[ceph-users] Erasure coding best practice

Hi, Couple of time I saw some use-case in the mail list where people using erasure code on a "weird" way. Normally we use more data chunks than coding chunks, like k=4 m=2 or k=8 m=3. What I mean "weird" I saw someone using k=3 and m=8 (I might remember wrong). I'm trying to understand what is the benefit of the higher coding chunks? You can use smaller object size? Let's say 4:2 the minimum object size should be 24K at least or with 8:3 it would be 44K because nothing will be stored on smaller space. In case of k=3 m=8, smallest object can be 12K, but you can lose 8 nodes (pgs) and data still there? Ty