SSDs can be combined with each other and traditional mechanical storage (hard drives, or HDDs) in various ways. Tiering uses separate tiers of storage based on performance to improve access times to “hot” data. Caching will cache reads and/or writes to improve recent data access times. A redundant array of independent disks (RAID) can combine multiple drives for performance or redundancy. PCIe bifurcation is the splitting of PCIe lanes which can be required to access more than one SSD in an appropriate PCIe adapter.
- PCIe Bifurcation