When reviewing the actual protection output of N+4/2, what does the number “4” represent?
A. FEC stripe units per stripe
B. Hard drives used per stripe
C. Volume stripes per file system
D. FEC stripe units per file system
It’s OneFS FEC protection nomenclature for our “hybrid” protection polices. More generally, it’s written as:
where “N” is the number of data stripe units in a stripe, “M” is the number of FEC stripe units in a stripe, and “b” is the number of stripe units in a stripe which are allowed to reside on the same node.