The most valuable feature are the caching capabilities using the storage class memory.
Microsoft Storage Spaces Direct offers no single point of failure, with valuable caching using storage class memory and impressive flash ability for tiering. Performance, reliability, and affordability stand out. However, more mirroring optimization and documentation improvements are needed, along with difficult hardware compatibility certification. It excels in storage expansion, but scalability starts beyond two nodes, requiring a complete cluster for two nodes, highlighting the need for enhanced online resources and sizing tools.
