Labels:text | screenshot | diagram | circle OCR: Server CPU User 1 Master Database data server process Primary Copy PID = 765 Disk 0 User 2 SQ1. Server scheduler: User 3 runnable tasks are Disk 1 scheduled by the data server Master Database Secondary Copy One thread for each user connection + One thread for each logical database device (enable asynchronous disk I/O within one physical device) FIGURE 1. Multithreaded architecture on a uniprocessor machine
