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:
Jul. 18, 2017

Filed:

Oct. 06, 2016
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Kiran K. Anumalasetty, Hyderabad, IN;

Venkata N. Anumula, Hyderabad, IN;

Sudhir Maddali, Hyderabad, IN;

Yadagiri Rajaboina, Hyderabad, IN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 15/16 (2006.01); H04L 12/911 (2013.01); H04L 12/24 (2006.01); G06F 9/50 (2006.01); H04L 29/08 (2006.01); H04L 12/925 (2013.01); H04L 29/12 (2006.01);
U.S. Cl.
CPC ...
H04L 47/783 (2013.01); G06F 9/5077 (2013.01); H04L 41/082 (2013.01); H04L 47/722 (2013.01); H04L 61/1582 (2013.01); H04L 67/1008 (2013.01); H04L 67/1097 (2013.01);
Abstract

According to one embodiment of the present invention, a method is provided. The method may include a computer registering a first instance of a logical partition on a source server with a logical unit and placing a first persistent reservation on the logical unit, wherein the first persistent reservation indicates that only the first instance of the logical partition can hold a reservation on the logical unit. The method may further include the computer registering a second instance of the logical partition on a destination server with the logical unit and downgrading the first persistent reservation, such that the first and second instances of the logical partition can hold persistent reservations on the logical unit. The method may further include the computer placing, by one or more computer processors, a second persistent reservation on the logical unit.


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