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Ceph Cookbook - Second Edition by Karan Singh, Michael Hackett, Vikhyat Umrao

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How to do it...

Below are some of the common commands used by Ceph admins:

  1. Check the status of your Ceph installation:
      # ceph -s or # ceph status
  1. Check Ceph's health detail:
      # ceph health detail
  1.  Watch the cluster health:
      # ceph -w
  1. Check Ceph's monitor quorum status:
      # ceph quorum_status --format json-pretty
  1. Dump Ceph's monitor information:
      # ceph mon dump
  1. Check the cluster usage status:
      # ceph df
  1.  Check the Ceph monitor, OSD, pool, and placement group stats:
      # ceph mon stat      # ceph osd stat      # ceph osd pool stats      # ceph pg stat
  1. List the placement group:
      # ceph pg dump
  1.  List the Ceph pools in detail:
      # ceph osd pool ls detail
  1.  Check the CRUSH map view of OSDs:
      # ceph osd tree
  1. Check Ceph's OSD usage:
 # ceph osd ...

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