1. A method comprising: receiving a write request directed towards a logical unit (LUN), the write request having data and processed at a first node of a cluster, the first node connected to a storage array of solid state drives (SSDs) forming a storage pool; organizing first and second sets of slices of the SSDs into first and second redundancy groups respectively; organizing a third set of slices of the SSDs into a third redundancy group; organizing first and second extent stores from the first and second redundancy groups respectively, wherein the first and second extent stores are serviced by the first node; organizing a third extent store from the third redundancy group, wherein the third extent store is serviced by the first node; storing the data in the first extent store; and in response to a failure of the first node, distributing the second extent store to a second node and distributing the third extent store to a third node such that the second and third nodes service the second and third extent stores respectively.