# IStorage

Package: [Microsoft.Orleans.Core.Abstractions](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/) 10.0.0

[NuGet package](https://www.nuget.org/packages/Microsoft.Orleans.Core.Abstractions) | [Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Core.Abstractions/Core/IStorage.cs#L99)

```csharp
public interface IStorage
```

Provides method for operating on grain storage.

## Properties

- [Etag](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleans.core.istorage/properties/etag-f9684dbf/)
- [RecordExists](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleans.core.istorage/properties/recordexists-31678f19/)

## Methods

- [ClearStateAsync](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleans.core.istorage/methods/clearstateasync-59d57092/)
- [ClearStateAsync(CancellationToken)](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleans.core.istorage/methods/clearstateasync-system-threading-cancellationtoken-8f95bee3/)
- [ReadStateAsync](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleans.core.istorage/methods/readstateasync-92ef1a79/)
- [ReadStateAsync(CancellationToken)](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleans.core.istorage/methods/readstateasync-system-threading-cancellationtoken-c68f9e40/)
- [WriteStateAsync](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleans.core.istorage/methods/writestateasync-7e7dd1dc/)
- [WriteStateAsync(CancellationToken)](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleans.core.istorage/methods/writestateasync-system-threading-cancellationtoken-21f473e9/)