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:
Jun. 06, 2006
Filed:
Oct. 16, 2003
James Patrick Allen, Austin, TX (US);
Jayant Vitthalbhai Patel, Austin, TX (US);
Stephen M. Tee, Marble Falls, TX (US);
Teerasit Tinnakul, Pflugerville, TX (US);
James Patrick Allen, Austin, TX (US);
Jayant Vitthalbhai Patel, Austin, TX (US);
Stephen M. Tee, Marble Falls, TX (US);
Teerasit Tinnakul, Pflugerville, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A mechanism is provided for monitoring I/O activity of each device and the total I/O activity for each adapter. When there is low I/O activity for the tape subsystem, the I/O for the disk subsystems may be spread across all available adapters and paths. When I/O activity for the tape subsystem increases, the I/O activity for the disk subsystems may be reduced on the adapter processing the tape I/O, but will continue across all other adapters. If the tape subsystem begins to report errors due to I/O starvation, the disk I/O activity may be adjusted until the errors stop.