Tip for erasure code profile?

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Hi,

I would be glad if anybody could give me a tip for an erasure code
profile and an associated crush ruleset.

The cluster spans 2 rooms with each room containing 6 hosts and each
host has 12 to 16 OSDs.

The failure domain would be the room level, i.e. data should survive if
one of the rooms has a power loss.

Is that even possible with erasure coding?
I am only coming up with profiles where m=6, but that seems to be a
little overkill.

Regards
-- 
Robert Sander
Heinlein Support GmbH
Schwedter Str. 8/9b, 10119 Berlin

https://www.heinlein-support.de

Tel: 030 / 405051-43
Fax: 030 / 405051-19

Amtsgericht Berlin-Charlottenburg - HRB 93818 B
Geschäftsführer: Peer Heinlein - Sitz: Berlin

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