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.

Date of Patent:
Oct. 09, 2007

Filed:

Aug. 30, 2001
Applicants:

Toshiaki Tarui, Sagamihara, JP;

Shin Kameyama, Kodaira, JP;

Frederico Buchholz Maciel, Kokubunji, JP;

Toru Shonai, Hachioji, JP;

Inventors:

Toshiaki Tarui, Sagamihara, JP;

Shin Kameyama, Kodaira, JP;

Frederico Buchholz Maciel, Kokubunji, JP;

Toru Shonai, Hachioji, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 9/46 (2006.01); G01R 31/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

A computer controls I/O allocation for partitions independently of CPU allocation and, in each I/O adapter and partition, the computer has a scheduling means controlling allocation for partitions of the I/O adapter by time sharing, a means to allocate the I/O adapter to partitions by space sharing and a means to dynamically change said allocation made by a partition-control program. Further, the computer has a means to monitor input/output performance of each partition, and a means to maintain SLA of a user program according to performance of each partition.


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