Describe the issue:
IBM FlashSystem documentation content (published in ODF 4.9) was removed from ODF 4.10 documentation due to and engineering blocker (https://bugzilla.redhat.com/show_bug.cgi?id=2073920). This blocker was fixed in 4.10.1 and therefore, since IBM FlashSystem now functional in ODF 4.10, the IBM FlashSystem documentation content needs to be added to the ODF 4.10 documentation set and published. 


Describe the task you were trying to accomplish:
Use IBM FlashSystem in 4.10.

Suggestions for improvement:
Add IBM FlashSystem content to the ODF 4.10 documentation.

Document URL:
Release Notes
https://access.redhat.com/documentation/en-us/red_hat_openshift_data_foundation/4.10/html/4.10_release_notes


Planning your deployment
https://access.redhat.com/documentation/en-us/red_hat_openshift_data_foundation/4.10/html/planning_your_deployment

Deploying OpenShift Data Foundation in external mode
https://access.redhat.com/documentation/en-us/red_hat_openshift_data_foundation/4.10/html/deploying_openshift_data_foundation_in_external_mode

Chapter/Section Number and Title:
Release Notes 4.10
[remove] https://access.redhat.com/documentation/en-us/red_hat_openshift_data_foundation/4.10/html-single/4.10_release_notes/index#rook_3

**Multiple references**
->In addition to the Release Notes, Planning, and Deploying documents above, please search the 4.9 documentation for other "IBM FlashSystem" references/content in 4.9 that need to be added to 4.10, as there are multiple statements/references, etc., throughout the 4.9 documentation.

Product Version:
4.10

Environment Details:
N/A

Any other versions of this document that also needs this update:
4.11 at GA

Additional information:
The 4.9 IBM FlashSystem content to be added to 4.10 must also be included in 4.11.

Since 4.11 GA is currently August 16, updating the ODF 4.10 documentation is first priority.