Describe the issue:

1. python3 command is not working as expected toretrieve the external cluster 
   details from the RHCS 4 cluster.

2. Add some details how OCS will handle cephfs feature if MDS is enabled in 
   external RHCS cluster


Describe the task you were trying to accomplish:

- Deploying OCS cluster in external mode


Suggestions for improvement:

- Add a section to use python <script> to extract cluster details for RHCS 4 
  installed in RHEL 7.8

-  Add section that cephfs components will automatically added in OCS 4 
   cluster if MDS is deployed in the external cluster.


Document URL:

https://access.redhat.com/documentation/en-us/red_hat_openshift_container_storage/4.5/html-single/deploying_openshift_container_storage_in_external_mode/index


Chapter/Section Number and Title:


Chapter "4. Creating an OpenShift Container Storage Cluster service for external mode"

Section: "Procedure"

Step 6


Product Version:

4.5

Environment Details:

1.OCS cluster: 

Infrastructure: Baremetal
OCP Server Version: 4.5.11
OCS: v4.5


2. Ceph cluster: 

RHCS: 4.1.1 Async2

RPM Version: 14.2.8-91.el7cp

OS Details:
NAME="Red Hat Enterprise Linux Server"
VERSION="7.8 (Maipo)"


Any other versions of this document that also needs this update:
N/A


Additional information:

In the next comments