Electrical computers and digital processing systems: memory – Storage accessing and control – Control technique
Reexamination Certificate
2006-05-16
2006-05-16
Padmanabhan, Mano (Department: 2188)
Electrical computers and digital processing systems: memory
Storage accessing and control
Control technique
Reexamination Certificate
active
07047378
ABSTRACT:
Provided are a method, system, and program for managing a relationship between one target volume and one source volume. Information is maintained in memory on an existing relationship between at least one source volume and at least one target volume, comprising: (i) at least one element, wherein each element represents a range of sequential data units in the volume; (ii) at least one relationship entry, wherein each relationship entry represents one relationship; and (iii) at least one element pointer associating one element with one relationship entry, wherein the data units represented by the element are part of the relationship represented by the relationship entry that the pointer associates with the element. A new relationship between at least one target volume and at least one source volume is added. Further, added is a new relationship entry in the memory representing the new relationship and one new element pointer is added in the memory for each element including data units included in the new relationship to associate the element with the new relationship entry, wherein the data units represented by the element are part of the new relationship.
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patent: 6076148 (2000-06-01), Kedem
patent: 6189079 (2001-02-01), Micka et al.
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U.S. Appl. No. 10/463,968, filed Jun. 17, 2003, entitled “Method, System, and Program For Managing A Relationship Between One Target Volume and One Source Volume”, invented by Michael E Factor; Amiram Hayardeny; Thomas C. Jarvis; Gail A. Spear; William F. Micka; Sivan Tal; Dalit Tzafrir; Rivka M. Matosevich; Sheli Rahav; Ifat Nuriel; Shachar Fienblit; and Svetlana Shukevich.
Factor Michael E.
Fienblit Shachar
Hayardeny Amiram
Jarvis Thomas Charles
Matosevich Rivka Mayraz
Doan Duc T
International Business Machines - Corporation
Konrad Raynes & Victor LLP
Padmanabhan Mano
Victor David W.
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