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. 30, 2009
Filed:
Jun. 30, 2006
Michael D. Haynes, Raleigh, NC (US);
Saurabh M. Pathak, Chapel Hill, NC (US);
Anita I. Bezera, Raleigh, NC (US);
William Paul Hotle, Apex, NC (US);
Alan L. Taylor, Cary, NC (US);
Michael D. Haynes, Raleigh, NC (US);
Saurabh M. Pathak, Chapel Hill, NC (US);
Anita I. Bezera, Raleigh, NC (US);
William Paul Hotle, Apex, NC (US);
Alan L. Taylor, Cary, NC (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
Methods, systems, and computer program products for preventing concurrent execution of conflicting software operations on the same and different storage processors while avoiding the deadlocks are disclosed. According to one method, first and second instances of a first software utility for respectively executing on the first and second storage processors having access to a storage medium are provided. First and second instances of the second software utility for respectively executing on the first and second storage processors are also provided. A lock is provided to instances of the first utility. The lock makes exclusive the operations of checking for an activity query from instances of the second utility and receiving a query from instances of the second utility. A first operation implemented by the first utility may fail if the activity query has been received when the checking occurs.