if err != nil {
		return err
	}

	c.Lock()
	defer c.Unlock()
	c.state = srState(sdata.SRState)
	c.enabled = len(c.state.Peers) != 0
	return nil
}

func (c *SiteReplicationSys) saveToDisk(ctx context.Context, state srState) error {
	sdata := srStateData{
		Version: srStateFormatVersion1,
		SRState: srStateV1(state),
	}
	buf, err := json.Marshal(sdata)
	if err != nil {
		return err
	}