Patent ID: 7464321

Claim:
A method to transfer information from a first information storage and retrieval system to a second information storage and retrieval system, comprising the steps of: providing a first information storage and retrieval system comprising a first track size and a plurality of first tracks, and a second information storage and retrieval system comprising a second track size and a plurality of second tracks; determining if said first track size is greater than said second track size; operative if said first track size is greater than said second track size: setting a ratio (R) equal to said first track size divided by said second track size; providing an (i)th first track; providing (R) second tracks; mapping said (i)th first track onto said (R) second tracks, wherein said (R) second tracks comprises the (j)th second track and each (j+x)th second track, wherein x is greater than or equal to 1 and less than or equal to (R−1 ) setting the track ID for a (j)th second track equal to (i) * (R); and setting the track ID for a (j+x)th second track equal to [(i) * (R)]+x.