# CustomStorageLogConsistencyOptions.PrimaryCluster

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.eventsourcing/orleans.configuration.customstoragelogconsistencyoptions/) | [Properties](/orleans/docs/api/csharp/microsoft.orleans.eventsourcing/orleans.configuration.customstoragelogconsistencyoptions/properties/)

[Source](https://github.com/dotnet/orleans/blob/b7a9e3e1c9c54b3cec3a467c5734bf7744541bcf/src/Orleans.EventSourcing/CustomStorage/CustomStorageLogConsistencyOptions.cs)

```csharp
public string? PrimaryCluster
```