Re: Crush rule examples

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Sorry, sent too early. So here we go again:


 My setup looks like this:

      DC1
          node01
          node02
          node03
          node04
          node05
      DC2
          node06
          node07
          node08
          node09
          node10

I want a replicated pool with size=4. Two copies should go in each DC, and then no two copies on a single node.

How can I describe this in a crush rule?

If someone has a link where a similar strategy is explained, I'm more than happy to figure out myself how to do it. However, while the Ceph documentation is very good in general, the CRUSH rule explanation is difficult to understand for me.

Thanks.


--
Andre Tann
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