I wonder how many people remember...
... that before it was called IBM Spectrum Scale storage, IBM Elastic storage, or General Parallel (I think) File System, GPFS was actually called the Multi-Media File System?
The evidence is quite clear, because as per normal, even though the name of the product changes, the names of the commands within the product haven't.
A huge number of the commands you run to configure and control GPFS start mm-, things like mmlsfs, mmlsconfig etc.
The original product was developed to provide a many server striped scaleable and reliable filesystem for IBM SP/2 Scaleable Parallel (sometimes called Supercomputers), often known as lan-in-a-can clusters, when IBM tried to sell them as media storage and delivery systems for what was then an almost non-existent on-demand video market. This was in the mid-1990s, before the likes of Netflix even thought of an over-the-net video delivery service, and when Amazon was just shifting books.