SAR restart and going home procedures

Details SAR restart and going home procedures SAR restart and going home procedures

2006-08-15

2009-10-20

Maskulinski, Michael C (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

Reexamination Certificate

active

07607037

ABSTRACT:
Described are techniques used in performing data replication processing. Data is replicated on a recovery site from a production site. When a disaster occurs, the state of the replication processing is determined and a restart copy of the data is made available from the recover site. Processing continues based on whether protection mode is desired such that the system executes using the recovery site as the restart with a replicated copy of the data. Data is propagated from the recovery site to the production site to resume operations and replication processing originating from the production site.

REFERENCES:
patent: 5155845 (1992-10-01), Beal et al.
patent: 5930824 (1999-07-01), Anglin et al.
patent: 6101497 (2000-08-01), Ofek
patent: 7134044 (2006-11-01), Day et al.

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