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RoleInstance.FaultDomain Property

Gets an integer value that indicates the fault domain in which the role instance is running.

Namespace: Microsoft.WindowsAzure.ServiceRuntime
Assembly: Microsoft.WindowsAzure.ServiceRuntime (in Microsoft.WindowsAzure.ServiceRuntime.dll)

Usage

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'Usage
Dim instance As RoleInstance
Dim value As Integer

value = instance.FaultDomain

Syntax

C++

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public abstract int FaultDomain { get; }

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/** @property */
public abstract int get_FaultDomain ()

JScript

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public abstract function get FaultDomain () : int

Property Value

Type: System.Int32

An integer value that represents the fault domain in which the role instance is running.

Remarks

A fault domain is a grouping of hardware in which role instances run. When multiple instances of a role are running, Windows Azure distributes the role instances among fault domains. You do not have control over which fault domain is used or the number of fault domains used, but you can query a role instance to know what fault domain it is in.

The following code example shows how to retrieve the fault domain values for role instances:

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foreach (var role in RoleEnvironment.Roles) 
{
   foreach (var roleInstance in role.Value.Instances)      
   {
      Trace.WriteLine("Role instance fault domain: " + roleInstance.FaultDomain, "Information");
   }
}

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Platforms

Development Platforms

Windows Vista, Windows 7 and Windows Server 2008

Target Platforms

Change History

Reference

RoleInstance Class
RoleInstance Members
Microsoft.WindowsAzure.ServiceRuntime Namespace
RoleEnvironment Class
RoleEnvironmentException Class

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