IBM Support

How to access Ceph Storage CLI in ODF/FDF

How To


Summary

This article includes the steps to gain access to Ceph CLI

Environment

IBM Storage Fusion Data Foundation 4.x
Red Hat OpenShift Data Foundation 4.x

Steps

  • The preferred method to accomplish this task is detailed in https://www.ibm.com/support/pages/node/7104410
  • If one doesn't want the Rook-Ceph Toolbox Pod running, use the rook-ceph-operator the method detailed in this article.

Important: As per ODF / FDF troubleshooting Guide, it is not supported to run Ceph commands in ODF/FDF clusters (unless indicated by the support team or documentation), as it can cause data loss if incorrect commands are executed. 

  • Locate your rook-ceph-operator pod and connect to it
oc rsh -n openshift-storage $(oc get pods -n openshift-storage -o name -l app=rook-ceph-operator)
  • Set your CEPH_ARGS environment variable
sh-4.4$ export CEPH_ARGS='-c /var/lib/rook/openshift-storage/openshift-storage.config'
  • One can now run Ceph commands
sh-4.4$ ceph -s
  cluster:
    id:     e4f12xxx-Redacted-Cluster-ID-yyy8fdcdfe6f
    health: HEALTH_OK

  services:
    mon: 3 daemons, quorum a,b,d (age 4d)
    mgr: a(active, since 4d)
    mds: ocs-storagecluster-cephfilesystem:1 {0=ocs-storagecluster-cephfilesystem-a=up:active} 1 up:standby-replay
    osd: 3 osds: 3 up (since 4d), 3 in (since 12d)
    rgw: 1 daemon active (ocs.storagecluster.cephobjectstore.a)

  task status:

  data:
    pools:   10 pools, 80 pgs
    objects: 19.95k objects, 76 GiB
    usage:   229 GiB used, 2.8 TiB / 3.0 TiB avail
    pgs:     80 active+clean

  io:
    client:   853 B/s rd, 15 KiB/s wr, 1 op/s rd, 1 op/s wr

Document Location

Worldwide

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Document Information

Modified date:
27 May 2025

UID

ibm17104412

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