Apparatus, system, and method for solid-state storage as cache for high-capacity, non-volatile storage

A solid-state storage device to cache data for a high-capacity non-volatile (HCNV) storage device, comprising:

• a plurality of solid-state storage elements coupled in parallel to a storage controller;
• a cache front-end module to manage data transfers between the storage controller and a requesting device;
• a cache back-end module to manage data transfers between the storage controller and a HCNV storage device, the data being associated with respective logical identifiers by the requesting device and the HCNV;
• and
• a sequential storage module to store data of the HCNV storage device on the solid-state storage elements, by issuing a single write command to the solid-state storage elements in parallel and to associate the data with a sequence indicator that defines an ordered sequence of storage operations for a logical identifier of the data, the single write command configured to store data of the HCNV storage device on respective physical storage locations of each of the plurality of solid-state storage elements in parallel and in response to the single write command, and
• wherein the sequential storage module is configured to store sequence indicators and the respective logical identifiers of the data on the solid-state storage elements in association with the data, wherein the sequence indicators persist the order of storage operations performed on the solid-state storage elements, and wherein the logical identifiers persist associations between the data and the respective logical identifiers of the data.