Overcloud deployment failed with Ceph PG number exceeds max

Solution Verified - Updated -

Issue

  • Director deployment of overcloud with Ceph failed with errors contains following lines in Mistral engine.log
ERROR, msg=Failure caused by error in tasks: ceph_base_ansible_workflow
Failure caused by error in tasks: ceph_install
Error ERANGE:  pg_num 128 size 3 would mean 768 total pgs, which exceeds max 600 (mon_max_pg_per_osd 200 * num_in_osds 3)"

Environment

  • Red Hat OpenStack Platform 13
  • Red Hat Ceph Storage 3

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