Probably one of the worst KB articles I have seen lately introduces, what has the potential to be a really exciting new feature of WSS 3.0/4.0 – Remote Blob Storage (RBS). This interface allows the storage of "blobs" outside of SQL server in a kind of BlobBank (I call dibs on this name. J). Blobs are the stream of content, a byte for those dev heads, which represent files within SharePoint. They are stored alongside their metadata in SQL. Having the ability to move these blogs to external storage systems is a huge win for some whom have TB of SQL storage and whom want to reduce the dependency on SQL for this type of storage.
Simon Skaria plans on blogging about the interface so I will not go into that here however what I did want to cover were some of the pros and cons or as some would say "considerations" when evaluating the Remote Blob Storage API.
BTW if anyone writes a provider I would love to hear about it!