Asynchronous File-Based Session Storage combines good performance with the File-Based Session Storage functionality. This storage has the same abilities as File-Based Session Storage except the asynchronous file operations. Each this storage creates the separated thread, which will be used to perform all operations with the file system.
To create such a session, the storageType parameter in the OnixS::FIX::Session::Session constructor has to be set to the OnixS::FIX::SessionStorageType::AsyncFileBased value.