array-based replication

Array-based replication applies the functionality of data replication across one or more storage controllers, which eliminates the processing overhead from servers and makes it easier to copy large amounts of data.

Array-based replication is an approach to data backup in which compatible storage arrays use built-in software to automatically copy data from one storage array to another. 

Array-based replication software runs on one or more storage controllers resident in disk storage systems, synchronously or asynchronously replicating data between similar storage array models at the logical unit number (LUN) or volume block level. The term can refer to the creation of local copies of data within the same array as the source data, as well as the creation of remote copies in an array situated off site.

See also: remote replication, host-based replication

This was first published in June 2012

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