# InProcessTestCluster.StartSilosAsync(int)

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.testinghost/orleans.testinghost.inprocesstestcluster/) | [Methods](/orleans/docs/api/csharp/microsoft.orleans.testinghost/orleans.testinghost.inprocesstestcluster/methods/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.TestingHost/InProcTestCluster.cs)

```csharp
public Task<List<InProcessSiloHandle>> StartSilosAsync(int silosToStart)
```

Start a number of additional silo, so that they join the existing cluster.

### Parameters

- `silosToStart` (`int`): Number of silos to start.

### Returns

List of SiloHandles for the newly started silos.