Embodiments of the invention are directed to optimizing reconstruction of operation data in volatile memory of solid-state storage subsystems. In various embodiments, operation data is stored in the volatile memory with persistent backup data of the operation data in the non-volatile memory. In one embodiment, operation data includes a superblock table that is used to identify most or all groups of blocks (superblocks) within the storage device that certain firmware components operate on. Sometimes operation data in the volatile memory is lost or corrupted due to a power interruption or system shutdown. To optimize the reconstruction of the superblock table or other similar operation data in the volatile memory, embodiments of the invention use a “snapshot entry” to identify the latest entry information, allowing the controller to quickly identify the most updated physical locations of the operation data portions and complete the reconstruction in an efficient manner.