Codeword interleaving for magnetic storage media

An apparatus for improved data storage reliability, comprising:

• an interface to receive data from a host;
• a disk of magnetic storage media arranged in sectors to store the data;
• an interleave buffer configured to buffer segments of codewords for writing to the sectors of the magnetic storage media;
• and
• an interleaver configured to:
• receive, from the host device, data that corresponds to one or more codewords to be stored by a set of multiple sectors of the magnetic storage media;
• select, for each of the one or more codewords, a respective indicator indicating within which partitions of the multiple sectors that segments of the codeword are to be written;
• encode the data for the one or more codewords to provide one or more codewords of encoded data;
• place, into the interleave buffer, segments of the one or more codewords based on the respective indicator corresponding to each of the codewords;
• and
• write, from the interleave buffer, the segments of the one or more codewords to the partitions of at least some of the multiple sectors to interleave the respective segments of the codewords across the set of multiple sectors of the magnetic storage media.

A System-on-Chip (SoC) comprising:

• an interface to a storage media controller from which data is received for writing to magnetic storage media;
• an interface to a media writer of the magnetic storage media;
• an interleave buffer configured to buffer segments of codewords for writing to sectors of the magnetic storage media;
• and
• an interleaver configured to:
• receive, from the storage media controller, data that corresponds to one or more codewords to be written to a set of multiple sectors of the magnetic storage media;
• receive, from the storage media controller, respective indicators indicating which partitions of the multiple sectors that segments of each of the codewords are to be written;
• encode the data for the one or more codewords to provide one or more codewords of encoded data;
• place, into the interleave buffer, segments of the one or more codewords based on the respective indicator corresponding to each of the codewords;
• and
• write, from the interleave buffer and with the media writer, the segments of the one or more codewords to the partitions of at least some of the multiple sectors to interleave the respective segments of the codewords across the set of multiple sectors of the magnetic storage media.