OCS/ODF How to find the disk device associated to an OSD pod when using LSO

Solution Verified - Updated -

Issue

  • Sometimes on situations like:

    • osd pod that is using PV from LSO, fails to start with error log
    failed to read label for /var/lib/ceph/osd/ceph-0/block: (2) No such file or directory

    ...we may need to find the associated device file name that is used by an osd pod.

  • On this document we have as an example osd.0 that should start on OCS node worker2 , then will find the associated device and then will confirm that is the correct one.

    osd.0 fail to start on worker2

rook-ceph-osd-0-565cxxxxxx-yyyyy                                 0/2    Pending  0         17h    10.x.x.2    worker2

Environment

  • Red Hat OpenShift Container Storage
    • OCS 4.X (up to 4.8)
  • Red Hat OpenShift Data Foundation
    • ODF 4.9 or higher
  • Red Hat Local Storage Operator

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