Computer system, managing computer and recovery management...

Details Computer system, managing computer and recovery management... Computer system, managing computer and recovery management...

2006-01-11

2008-10-28

Le, Dieu-Minh (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S002000

Reexamination Certificate

active

07444545

ABSTRACT:
The invention provides a method for computing the appropriate capacity of a journal volume based on the operating patterns of backup and recovery performed by the user, and composing a recovery system that enables recovery to be performed in a short time using journals. The invention provides a computer system comprising a storage system120having a volume124, a managing computer100and a host computer110, wherein the storage system120retains a journal of data stored in the volume and a volume replicating the data stored in the volume, and restoring a volume data at any update time point based on the journal and the replicated volume, and upon receiving operation from a user regarding the volume retaining the journal, the managing computer100acquires a registration creation demand including a recovery time objective which is the time to be restored and/or a recovery point objective which is the recovery time point and a journal retention period which is the period for retaining the journal, monitors the journal of data stored in the volume, computes the quantity of the journal, and determines the capacity of the volume for retaining the journal.

REFERENCES:
patent: 7076620 (2006-07-01), Takeda et al.
patent: 7356657 (2008-04-01), Mikami
patent: 2004/0172509 (2004-09-01), Takeda et al.
patent: 2005/0015416 (2005-01-01), Yamagami
patent: 2006/0174076 (2006-08-01), Takeda et al.
patent: 2007/0028139 (2007-02-01), Wahl et al.

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