Patent ID: 6058462
Filing Date: 2000-05-02
Classification: G06F,G11B

Abstract:
A system for storing data on communicating disk drives, comprising:first disk drive means and second disk drive means, both for storing compressed data records in compressed track format, each compressed data record including a cyclic redundancy check (CRC) value;cache means for storing tracks of compressed data records from said first disk drive means and including means for generating a CRC value for each stored track of compressed data records and appending a corresponding CRC value thereto;a host processor;switch means coupled between said cache means, said host processor and said second disk drive means for dispatching and receiving tracks of compressed data records between said first disk drive means and second disk drive means; andcomputational means associated with said switch means for calculating a CRC value for each track of compressed data records received from said cache means and for determining a match/non-match state with the CRC value appended to said each track of compressed data records.