Occasionally a database employs storage redundancy by database objects replication ( with one or more copies ) to increase data availability ( both to improve performance of simultaneous multiple end-user accesses to a same database object, and to provide resiliency in a case of partial failure of a distributed database ).

Occasionally a database employs storage redundancy by database objects replication ( with one or more copies ) to increase data availability ( both to improve performance of simultaneous multiple end-user accesses to a same database object, and to provide resiliency in a case of partial failure of a distributed database ).

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