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Specifies whether the group should automatically be failed back to the node identified as its preferred owner when that node comes back online following a failover. The following table summarizes the attributes of the AutoFailbackType property.
| Attribute | Value |
|---|---|
| Data type |
DWORD |
| Access |
Read/write |
| Structure |
CLUSPROP_DWORD |
| Minimum |
ClusterGroupPreventFailback (0) |
| Maximum |
ClusterGroupAllowFailback (1) |
| Default |
ClusterGroupPreventFailback |
Remarks
The data for the AutoFailbackType property can be set to one of the following values of the CLUSTER_GROUP_AUTOFAILBACK_TYPE enumeration.
| Name | Value | Description |
|---|---|---|
| ClusterGroupPreventFailback |
0 |
Prevents failback. |
| ClusterGroupAllowFailback |
1 |
Allows failback (requires a preferred owners list for the group). |
Note that setting this property to ClusterGroupAllowFailback has no effect if you have not specified a preferred owners list for the group. Use the SetClusterGroupNodeList function to specify a preferred owners list.
Examples
The property value portion of a property list entry for AutoFailbackType can be set with the following example code:
DWORD AutoFailbackTypeData = ClusterGroupAllowFailback;
CLUSPROP_DWORD AutoFailbackTypeValue;
AutoFailbackTypeValue.Syntax.dw = CLUSPROP_SYNTAX_LIST_VALUE_DWORD;
AutoFailbackTypeValue.cbLength = sizeof(DWORD);
AutoFailbackTypeValue.dw = AutoFailbackTypeData;
Requirements
| Minimum supported client |
None supported |
| Minimum supported server |
Windows Server 2008 Enterprise, Windows Server 2008 Datacenter |