File system areas in field replaceable unit storage devices

In some examples, a field replaceable unit (FRU) storage device includes a storage medium storing a plurality of information areas and a common header for the plurality of information areas. The common header contains an indicator that when set to a first value indicates presence in the FRU storage device of first electronic component data according to an extended format that is different from a first format governing storage of second electronic component data in the FRU storage device relating to an electronic component in an FRU. The common header contains a field set to location information referring to a storage location of a file system area on the FRU storage device when the indicator is set to the first value, the file system area containing the first electronic component data according to the extended format and that relates to an electronic component in the FRU, wherein the file system area is accessible by a file system using information in the file system area.