1. A method for processing modified meta data for data recovery operations, wherein the meta data provides information on customer data maintained in a storage device, comprising the steps of: determining whether meta data tracks maintained in a cache were modified; indicating in a non-volatile memory that the determined meta data tracks were modified; initiating a data recovery operation in response to a system failure; and processing the non-volatile memory and the indications of modified meta data tracks therein to rebuild lost meta data tracks in cache during the data recovery operation.