Storage array controller for flash-based storage devices

A storage array controller operable to be coupled to a host system;

• wherein the storage array controller controls a storage array;
• wherein the storage array comprises a plurality of solid-state disks;
• wherein the plurality of solid-state disks form a RAID array;
• wherein the storage array controller creates a map to perform data manipulation across at least one of the plurality of solid-state disks;
• wherein the storage array controller includes an operating system;
• wherein the operating system is operable to alter the map of one or more input addresses to one or more output addresses;
• wherein the storage array controller uses the map to map addresses between one or more host commands and one or more disk commands;
• wherein the storage array controller is operable to perform one or more re-mapping operations between the host system and the storage array;
• wherein the storage array controller is operable to use a freelist of addresses that are free to be used. wherein one or more garbage collection operations are performed by the storage array controller independently from the host system;
• and wherein the storage array controller is operable to perform the map of input addresses to output addresses while performing one or more garbage collection operations.