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When an array manager is added to each of the two sites in SRM, the arrays must be paired so that replicated volumes can be discovered by SRM as eligible devices (see Figure 12). In older versions of SRM, pairing was performed after the initial installation of SRM. However, as of SRM 8.7, you can perform pairing as part of the process of adding array managers to sites.
Arrays cannot be unpaired when there are downstream SRM dependencies such as protection groups.