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:
Aug. 01, 2006
Filed:
Jul. 03, 2003
Young Ho Kim, Taejon, KR;
Dong Jae Kang, Taejon, KR;
Yu Hyeon Bak, Taejon, KR;
Chang Soo Kim, Taejon, KR;
Bum Joo Shin, Taejon, KR;
Myung Joon Kim, Taejon, KR;
Young Ho Kim, Taejon, KR;
Dong Jae Kang, Taejon, KR;
Yu Hyeon Bak, Taejon, KR;
Chang Soo Kim, Taejon, KR;
Bum Joo Shin, Taejon, KR;
Myung Joon Kim, Taejon, KR;
Abstract
An efficient snapshot technique based on a mapping for a large logical volume shared in multiple hosts. According to the present invention, problems of time delays in a conventional snapshot technique is solved by employing a FAB and an SSB, which are bits representing whether a COW operation is carried out to a mapping entry. In other words, the present invention solves the problems of delaying a write operation of corresponding volume, which is simultaneously executed when a snapshot is created, until the snapshot creation is completed.