Browse Prior Art Database

Method and System for Implementing Readers of Variable Sizes within a Single Head Module of a Tape Drive

IP.com Disclosure Number: IPCOM000224883D
Publication Date: 2013-Jan-09
Document File: 2 page(s) / 19K

Publishing Venue

The IP.com Prior Art Database

Abstract

A method and system for implementing readers of variable sizes within a single head module of a tape drive is disclosed. Further, every reader of the tape drive is utilized at a given time.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 51% of the total text.

Page 01 of 2

Method and System for Implementing Readers of Variable Sizes within a Single Head Module of a Tape Drive

Newer generations of tape drives may have difficulty in reading data written by an older generation tape drive.

Disclosed is a method and system for implementing readers of variable sizes within a single head module of a tape drive.

In an exemplary embodiment, different sizes of reader elements are designed within a single head module. For example, a latest generation tape drive has one or more additional read/write elements capable of writing and reading 32 tracks at a time. On the other hand, an older generation tape drive typically reads/writes 16 tracks at a time.

The method and system enables designing of a head module where 16 of the 32 reader heads on the head module are slightly larger than the other 16 reader heads contained within the same head module. The slightly larger reader heads provide better read strength for the data written by the older generation tape drive. Also, since the older generation data is written with only 16 channels, only 16 of the 32 channels need to be slightly larger. The 16 slightly larger reader heads are placed over the tracks, written by the older generation tape drive, that need to be read. In an embodiment, the reader heads for a 32 channel head are arranged to coincidentally fall on all 16 channels of data written by the older generation tape drive at the same time.

In an exemplary implementation, the arrangement of the reader elements is shown in the figure, where the 'B' set of 16 reader heads are larger than the 'A' reader heads. The figure shows different arrangements o...