Describe the issue:

Existing documentation [1] that covers pod placement makes reference to external kubernetes documentation on the use of topology labels [2] but these don't cover all scenarios that customers are likely to want/need to use e.g rack. Specifically Rook has additional labels [3] which can be used to influence/define the topology.

Describe the task you were trying to accomplish:

Deploy ODF across user defined failure domains as per design.

Suggestions for improvement:

We should either add this into our docs or at least add a link out to the Rook page explaining this for customers that need this info.

Document URL:

[1] https://access.redhat.com/documentation/en-us/red_hat_openshift_data_foundation/4.14/html/planning_your_deployment/infrastructure-requirements_rhodf#pod-placement-rules_rhodf

[2] https://kubernetes.io/docs/reference/labels-annotations-taints/#topologykubernetesiozone

[3] https://rook.io/docs/rook/v1.12/CRDs/Cluster/ceph-cluster-crd/#osd-topology

Chapter/Section Number and Title:

Product Version:

ODF 4.14

Environment Details:

OCP 4.14 (both VMware and IBM Z)

Any other versions of this document that also needs this update:

Likely needs to be updated for a few platforms i.e. bare metal, IBM Z, VMware UPI etc. as well as multiple ODF versions.

Additional information: