Ceph: Designing and Implementing Scalable Storage Systems

How to do it...

Let's begin the configuration:

1. Get the current CRUSH map and decompile it:

        # ceph osd getcrushmap -o crushmapdump        # crushtool -d crushmapdump -o crushmapdump-decompiled

2.  Edit the crushmapdump-decompiled CRUSH map file and add the following section after the root default section:

3.  Create the CRUSH rule by adding the following rules under the rule section of the CRUSH map, and then save and exit the file:

4.  Compile and inject ...