Hi @PatrickMcKinney99, my two cents on this, it would depend on your policy, how much space you have available, more is always better if you have space.
On a side note, I would not just relight on WebGISDR which is a point in time recovery for the whole system, because it is all or nothing, I had cases where portal broke for example, but the client lost data in datastore because his backup was a week old. I would also add the site export for portal and ArcGIS Server and the data store backup for datastore, that will give you more flexibility if just one component breaks.
Hope it helps
Henry