Compute Nodes perform full network stripe writes to a set of Data Nodes with each Data Node maintaining its own local drives. Datrium DVX uses a wide erasure-coded stripe of (8D+2P) to increase write throughput and to lower the extra space overhead for encoding. Layout maps are maintained to map stripes to Data Nodes and disks. DVX uses declustered RAID layouts: data, parity and spare space are spread out across all disks of Data Nodes.
Datrium, DVX [HCI]/18.104.22.168, x86
Protection Capacity Overhead, Reads/Writes, Data Availability