How to Safely Increase Resources on OpenShift Data Foundation (ODF) Storage Nodes

Issue

• ODF Storage nodes have specific architecture requirements defined in section 7.3. Resource requirements of the Product Documentation.

• In some instances, especially after ODF storage devices/disks have been scaled up (added), users may experience pods going into a Pending status and not being able to schedule pods. This is because with each ODF device added to a storage node, an additional 2 CPU and 5GiB of memory will be requested from the node regardless of the device size.

• Although there are many different infrastructure types (AWS, VMWare, Bare Metal, Azure, etc.), the process is typically the same. Generic terminology will be used in this solution, however, infrastructure administrators will need to fill in the gaps on how it relates to the specific platform being administered.