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This graphic shows two data spaces for a database and its copy, where the data space group objects each have a combination of three instances.
Data space group 1 consists of instances host3.instance1, host5.instance1, and host7.instance1. Each instance has an element of the database that in conjunction contain a complete copy of the data of the database.
Data space group 2 consists of instances host4.instance1, host6.instance1, and host8.instance1. Each instance has an element of the database that in conjunction contain a complete copy of the data of the database.