FAT sector unavailable, synthesizing a FAT sector of EOC entries

    Facility: EFI$CP, The OpenVMS EFI Partition Control Program

    Explanation: this message reports a device error reading the
    File Allocation Table (FAT), and the generation of a block of
    End Of Cluster Chain (EOC) end of file entries in the FAT table;
    all files involving FAT entries within the failed FAT sector are
    effectively truncated.

    User Action: Attempt to copy all user data off the FAT volume, as
    it appears the FAT volume is failing.