The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 31, 2018
Filed:
Jan. 24, 2018
International Business Machines Corporation, Armonk, NY (US);
Joel K. Lyman, Tucson, AZ (US);
Arthur W. Stillwell, Mesa, AZ (US);
Spencer G. Mower, Pima, AZ (US);
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Abstract
Various embodiments of a tape storage system having a physical control unit configured to support multiple logical control units are provided. Each logical control unit supports communication with a single tape drive model type up to a maximum number of drives. A customer obtains a number N of logical control units through purchase, lease or other legitimate avenues. Based on the number of tape drive model types L and the number of tape drives for each type Q, the model types are mapped to the N LCUs. In general, mapping priority is given to the newer generation model types and the model types in which the number of attached tape drives Qexceeds the capacity M of a single LCU.