Ceph erasure coding

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Hi,

I have a question about the capabilities of the erasure coding API in
Ceph. Let's say that I have 10 data disks and 4 parity disks, is it
possible to create an erasure coding plugin which creates 20 data
chunks and 8 parity chunks, and then places two chunks on each osd?

Or said maybe a bit simpler is it possible for two or more chunks from
the same encode operation to be placed on the same osd?

- Kjetil Babington
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