Re: Erasure Coding: Determine location of data and coding chunks

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Hi Jonas,

ceph osd map [poolname] [objectname] 

should provide you with more information about where the object and chunks are stored on the cluster.

Regards,

Marko Sluga
Independent Trainer



W: http://markocloud.com
T: +1 (647) 546-4365

L + M Consulting Inc.
Ste 212, 2121 Lake Shore Blvd W
M8E 4E9, Etobicoke, ON


---- On Mon, 19 Jun 2017 14:56:57 -0400 Jonas Jaszkowic <jonasjaszkowic.work@xxxxxxxxx> wrote ----

Hello all, I have a simple question:

I have an erasure coded pool with k = 2 data chunks and m = 3 coding chunks,
how can I determine the location of the data and coding chunks? Given an object A
that is stored on n = k + m different OSDs I want to find out where (i.e. on which OSDs)
the data chunks are stored and where the coding chunks are stored.

Thank you!

- Jonas
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