Method and means for making a dual volume level copy in a DASD s

Details Method and means for making a dual volume level copy in a DASD s Method and means for making a dual volume level copy in a DASD s

1997-01-07

1999-02-23

Swann, Tod R.

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

711112, 39518204, G06F 1216

Patent

active

058754792

ABSTRACT:
A volume-to-volume copy method on a DASD storage subsystem concurrent with host CPU application execution and referencing of data on a primary. In this method, updates to data made on a primary volume after the element was copied during a first pass will be deferred and copied only during a second pass rather than interrupting the first pass. This accumulation and deferral of updates to a second pass shortens the volume copy time and reduces application referencing delay.

REFERENCES:
patent: 3725864 (1973-04-01), Clark et al.
patent: 4207609 (1980-06-01), Luiz et al.
patent: 4872106 (1989-10-01), Slater
patent: 5241668 (1993-08-01), Eastridge et al.
patent: 5241670 (1993-08-01), Eastridge et al.
patent: 5319766 (1994-06-01), Thauer et al.
patent: 5446871 (1995-08-01), Shomler et al.
patent: 5701429 (1997-12-01), Legvold et al.
Mikkelsen, "Method and Means for Time-zero Backup and Copying of Data", Application Serial No. 07/781,044, filed Oct. 18, 1991, now abandoned.

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