Disk Mirroring 1
Disk Mirroring 1 :
"Disk mirroring is the duplication of data on separate disks in real time to ensure its continuous availability, currency and accuracy. Disk mirroring can function as a disaster recovery solution by performing the mirroring remotely. True mirroring will enable a zero recovery point objective. Depending on the technologies used, mirroring can be performed synchronously, asynchronously, semi-synchronously, or point-in-time. Similar terms: data mirroring, data replication, file shadowing, and journaling". (DigitalCare, State of Business Continuity Workshop, 2006, p. 54)
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