DiskImpl* create_disk(const std::string& name, double read_bandwidth, double write_bandwidth) override;
double next_occurring_event(double now) override;
void update_actions_state(double now, double delta) override;
DiskImpl* create_disk(const std::string& name, double read_bandwidth, double write_bandwidth) override;
double next_occurring_event(double now) override;
void update_actions_state(double now, double delta) override;