[didgetmaster]

Are you only interested in mainstream stuff that have been widely deployed and where textbooks have been published about them?

Or are you open to experimental stuff that are willing to 'break the mold' and try a whole new approach to how unstructured data (files) can be stored and managed?

[craftsman]

All of the above, with a focus on modern high-performance, parallel, distributed filesystems. I assume the more modern systems may not be adequately discussed in textbooks and that papers may be better at covering their details.