+double Disk::get_read_bandwidth() const
+{
+ return this->pimpl_->get_read_bandwidth();
+}
+
+double Disk::get_write_bandwidth() const
+{
+ return pimpl_->get_write_bandwidth();
+}
+
+Host* Disk::get_host() const
+{
+ return pimpl_->get_host();
+}
+