How to display the content of CRUSH map in Ceph Cluster

Abdennour Toumi

·Nov 8, 2020

There are two ways:

In json format (but very long output)

ceph osd cursh dump

Or in plain text format ( but easy to read)

ceph osd getcrushmap | crushtool -d -

• getcrushmap will return binary content
• crushtool will convert it to plain text