1. A method of supporting dynamic tier remapping of data stored in a hybrid storage system, the hybrid storage system comprising a storage controller and firmware, the firmware maintaining a plurality of mapping elements, each mapping element including a plurality of group identifiers, each group identifier configured to indicate a mapping of a logical block addresses, the method comprising: receiving, by a storage controller, a read command including a logical block address; parsing, by the storage controller, the logical block address to determine a mapping element and a group identifier; determining, by the storage controller and for a particular mapping element of the plurality of elements corresponding to the mapping element of the logical block address, whether the particular mapping element is locked; if the particular mapping element is locked, queuing, by the storage controller, the read command for firmware processing; and if the particular mapping element is not locked, determining, by the storage controller, from the mapping element whether to modify the group identifier of the logical block address.