Data corruption detection

A method comprising:

• generating, in a data storage device, a first error-related code based on received data
• combining, in the data storage device, the first error-related code with the received data to generate a data stream;
• transforming, in the data storage device, the data stream into a transformed data stream;
• generating, in the data storage device, a second error-related code based on the transformed data stream;
• processing the data stream in at least one data path to create a processed data stream, wherein the processed data stream comprises a processed first error-related code and processed received data;
• generating a third error-related code based on the processed received data;
• and
• comparing the third error-related code to the processed first error-related code to determine whether the processed data stream is different than the data stream.

A data storage device comprising:

• at least one processor;
• a first error-related code generating unit configured in the at least one processor to generate a first error-related code based on received data and combine the first error-related code and the received data to generate a first data stream;
• a transform unit configured in the at least one processor to transform the first data stream to a transformed data stream;
• a second error-related code generating unit configured in the at least one processor to generate a second error-related code based on the transformed data stream and combine the second error-related code with the transformed data stream to generate a second data stream;
• a data path configured to process the second data stream and create a processed data stream, wherein the processed data stream comprises a processed transformed code and processed transformed data;
• and
• an error checking unit configured to generate a third error-related code based on the processed data stream and compare the third error-related code to the processed transformed code to determine whether the processed data stream is different than the second data stream.

A data storage device comprising:

• at least one processor;
• a first error-related code generating unit configured in the at least one processor to generate a first error-related code based on received data and combine the first error-related code and the received data to generate a first data stream;
• a transform unit configured in the at least one processor to transform the first data stream to a transformed data stream;
• and
• a second error-related code generating unit configured in the at least one processor to generate a second error-related code based on the transformed data stream;
• a data path configured to process the data stream to create a processed data stream, wherein the processed data stream comprises a processed first code and processed received data;
• and
• an error checking unit configured to generate a third error-related code based on the processed received data and compare the third error-related code to the processed first error-related code to determine whether the processed data stream is different than the data stream.