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| Oracle Solaris Cluster Geographic Edition Data Replication Guide for EMC Symmetrix Remote Data Facility

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## SRDF Properties

The following table describes the SRDF properties that the Geographic Edition software defines.

Table A-1 SRDF Properties

Property | Description
--- | ---
Data Replication Property: `Cluster_dgs` (string array) | Lists the Oracle Solaris Cluster device groups where the data is written. The list is comma delimited. Only applications that belong to the protection group should write to these device groups. The Oracle Solaris Cluster device groups must exist and have the same name on both the primary cluster and the secondary cluster. Tuning recommendations: This property can only be tuned when the protection group is offline. Category: Optional Default: Empty
Data Replication Property: `Nodelist` (string array) | Lists the host names of the machines that can be primary for the replication mechanism. This list is comma delimited. Tuning recommendations: This property can be tuned at any time. Category: Optional Default: All nodes in the cluster
Device Group Property: `DG_or_CG` (string) | Specifies if the device group is an SRDF device group or a SRDF consistency group. Tuning recommendations: This property must be set to `DG`. Category: Required Default: `DG`
Device Group Property: `R1_SID` (string) | Specifies the primary (RDF1) EMC Symmetrix ID of the EMC Symmetrix devices. Tuning recommendations: You can tune this property at any time. Category: Required Default: None, until you add a Symmetrix Remote Data Facility device group.
Device Group Property: `R2_SID` (string) | Specifies the secondary (RDF2) EMC Symmetrix ID of the EMC Symmetrix devices. Tuning recommendations: You can tune this property at any time. Category: Required Default: None, until you add a Symmetrix Remote Data Facility device group.

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