Table 4
Node, read, write is of NoSQL.
Parameter NoSQL performance
W < N High write availability
R < N High read availability
W = N, R = 1 Strong consistency, Read optimized
W = 1, R = N Strong consistency, Write optimized
W + R > N Strong consistency. A read will see at least one copy of the most recent update. Write are fully overlapped
W + R ≤ N Eventual (Weak) Consistency