Cost reduction

The example from SDS section, highly reduces the operating expense (OPEX) costs, as you do not have to buy additional highly-priced expansion shelves for an existing vendor storage array that can take weeks to arrive and be installed. You can quickly grab a server that you have stored in the corner of your data center, and use it to provide storage space for your existing applications. This process is called plugin scalability and is present in most of the open source SDS projects out there. In theory, the sky is the limit when it comes to scalability with SDS.