Method, system, and program for establishing and maintaining...

Details Method, system, and program for establishing and maintaining... Method, system, and program for establishing and maintaining...

2006-05-30

2006-05-30

Ellis, Kevin L. (Department: 2188)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

Reexamination Certificate

active

07055009

ABSTRACT:
Provided are a method, system, and program for establishing a point-in-time copy. Input/Output (I/O) requests to tracks identified as source tracks and corresponding target tracks in a point-in-time copy relationship are suspended until the point-in-time copy relationship is established. At least one data structure providing information on the source tracks and corresponding target tracks in the point-in-time copy relationship is generated, wherein the point-in-time copy relationship is established before data at the source tracks is copied to the target tracks and before source tracks in cache at the point-in-time are destaged to storage.

REFERENCES:
patent: 5734818 (1998-03-01), Kern et al.
patent: 6205450 (2001-03-01), Kanome
patent: 6611901 (2003-08-01), Micka et al.

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