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Ceph: Designing and Implementing Scalable Storage Systems
book

Ceph: Designing and Implementing Scalable Storage Systems

by Michael Hackett, Vikhyat Umrao, Karan Singh, Nick Fisk
January 2019
Intermediate to advanced
606 pages
15h 1m
English
Packt Publishing
Content preview from Ceph: Designing and Implementing Scalable Storage Systems

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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Publisher Resources

ISBN: 9781788295413