Why I/O to all pools blocked after single OSD disk gets full in RHCS ?

Solution Verified - Updated -

Issue

  • Why I/O to multiple pools prevented after one of the OSD reaches mon osd full ratio ?
  • Why client application could not write to rbd devices after ceph cluster has OSD Full situation ?

Environment

  • Red Hat Enterprise Linux 7
  • Red Hat Ceph Storage
  • Ubuntu
  • CentOS

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