Fast track reassign in a rotating storage media

A disk drive system including:

• a plurality of tracks for storing data, each of said tracks divided into a plurality of sectors, each of said sectors having a corresponding logical address value associated therewith, each said track having a corresponding skew associated therewith and having a nominal skew value providing adequate time for sequential access of said corresponding track from a sequentially preceding track;
• and
• control means operative to perform a reassign process for reassigning data sectors stored in a reassign span including a first partial track having a reassign sector, a second partial track having a spare sector corresponding with said reassign sector, and at least one intermediate track disposed between said first and second partial tracks, said reassign process including the step of adjusting said nominal skew value of at least one of said intermediate tracks by a corresponding skew delta adjustment value so that said logical address values associated with said sectors of said intermediate track are transposed thereby effectively shifting data stored in selected sectors of said intermediate track in a direction of said spare sector relative to said reassign sector.

A machine readable storage device having stored therein encoding instructions for executing a reassign process in a disk drive system including a plurality of tracks for storing data, each of said tracks divided into a plurality of sectors, each of said sectors having a corresponding logical address value associated therewith, each said track having a corresponding skew associated therewith and having a nominal skew value providing adequate time for sequential access of said corresponding track from a sequentially preceding track, said reassign process being operative to reassign data sectors stored in a reassign span including a first partial track having a reassign sector, a second partial track having a spare sector corresponding with said reassign sector, and at least one intermediate track disposed between said first and second partial tracks, said reassign process comprising the step of:

• adjusting said nominal skew value of at least one of said intermediate tracks by a corresponding skew delta adjustment value so that said logical address values associated with said sectors of said intermediate track are transposed thereby effectively shifting data stored in selected sectors of said intermediate track in a direction of said spare sector relative to said reassign sector.