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Shadow/mirror Databases

A shadow/mirror database is a copy of a primary database that has been replicated for backup purposes. Such databases are typically used in business continuity planning (BCP) situations where there's an outage on one system, but another location still provides access until repairs are made.

What Small and Midsize Businesses Need to Know About Shadow/mirror Databases

Shadow/mirror databases provide SMBs security against disruptions, as they allow operations to continue even if one site goes down. For instance, if internet connectivity is lost at the primary website provider due to a natural disaster such as a storm, mirror databases help provide some level of service through alternative routes to assist customers. SMBs can leverage this technology to keep operations running smoothly during outages or cyberattacks. Having multiple data copies is also good practice for data recovery if some or all of the information is lost.

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