公开(公告)号：AT557393T

公开(公告)日：2012-05-15

申请号：AT09801960

申请日：2009-12-14

Applicant: IBM

Inventor： SEGER PAUL ,  BENTLEY STEVEN

IPC: G11B20/18 ,  G11B5/008 ,  G11B20/12

Abstract: Writing data to magnetic tape is performed by receiving data from a host, establishing sub data sets, computing C1 and C2 ECC, forming Codeword Quad sets, writing a beginning Data Set Separator to a magnetic tape, writing a plurality of contiguous instances of the CQ Set to the magnetic tape and writing a closing DSS. The number of instances of each Codeword Pair is increased, thereby allowing the benefits of writing short tape records and improving reading reliability while reducing susceptibility to mis-tracking errors and large defects, and while reducing the negative impact on data reliability. Otherwise unused latency times are utilizing and therefore no performance penalty is incurred.