Is it an anti-pattern and violate solid principles in this scenario?

I'm new to design patterns, below is my code that let a consumer add journal and save the journal to disk, or upload it to cloud, could you have a check to see if the design is anti-pattern and is there any violations of solid principles

public class Program
{
  static void Main(string[] args)
  {
    Consumer client = new Consumer(new DiskManager("C:\\journal.txt"));
    // consumer add text to Journal
    client.AddJournal("sometext");
    client.SaveJournal();
  }
}

public class Journal
{
  private readonly List<string> entries = new List<string>();

  public void AddEntry(string text)
  {
    entries.Add(text);
  }

  public void RemoveEntry(int index)
  {
    entries.RemoveAt(index);
  }
}

public interface IPersistenceManager
{
  void Save(Journal journal);
}

public class DiskManager : IPersistenceManager
{
  private string filePath;

  public DiskManager(string filePath)
  {
    this.filePath = filePath;
  }

  public void Save(Journal journal)
  {
    //XXX.XXX.Save(filePath);
  }
}

public class CloudManager : IPersistenceManager
{
  private string url;

  public CloudManager(string url)
  {
    this.url = url;
  }

  public void Save(Journal journal)
  {
    //XXX.XXX.Save(url);
  }
}


public class Consumer
{
  private Journal _journal = new Journal();
  private IPersistenceManager _manager;

  public void AddJournal(string note)
  {
    _journal.AddEntry(note);
  }

  public Consumer(IPersistenceManager manager)
  {
    _manager = manager;
  }
  public void SaveJournal()
  {
    _manager.Save(_journal);
  }
}

and I have a question well:

Q1-How can I modify the code so the client can also have an option to save the journal to both disk and cloud?