Pictured are three of the four computers running on site, underneath are their UPSs, above is the monitor and keyboard. All four computers are networked and can be individually controlled and configured from the UK. The tasks performed by each computer are separated as follows:
Control runs Linux.
- Controlserver - This software schedules the jobs, listens to the weather server and decides what to do and when. It controls the cameras focussers and filter wheels, and dispatches commands to the Point computer
- The database - All job and weather data kept on site is within a PostgreSQL database on control
- Communications - All communications between the main web site and the telescope site is done through a communications server on this computer
- Webcams - Webcam software hosts the following cameras on this computer: Road-Cam, Teide-Cam, Pier-Cam and Dome-Cam
- Logging software for the rabbit boards, a serial port connector program and an onsite web server also run on this computer
- Various network tasks - DNS, NTP, DHCP, routing... etc
- The point computer runs as a virtual machine on control - this is done using VMWare
Weather runs Linux.
- Weather server software runs on this computer. The software uses the two data aquisition cards to record the incoming weather data from all the sensors. It records this data into the database and makes it available in various forms to other parts of the system that need it
- Webcams - Webcam software hosts the following cameras on this computer: Pole-Star-Cam, Teide-Stars-Cam, Analemma-Cam and Puerto-Cam
- Backup network router - in case control goes down we can still see our network using this machine
Spare runs Linux.
As the name suggests, this machine is mostly spare, however it has taken on some small jobs over time.
- Dial-in access - We can dial up using a modem linked to this computer in case the main link is not functioning
- Time lapse star videos - these are taken and generated by this machine
- VOIP - Spare runs a semi-experimental voice over IP setup
The computer that used to be Point is now used only as a Windows workstation for when we are on site.
This is a virtual Windows machine which runs under VMWare on the control computer.
This machine's job is to run TheSky by Software Bisque which controls the telescope mount. In order to use these pieces of software remotely there is a client application that connects to TheSky and controls it using RASCOM. This client software takes its orders from the controlserver software running on Control.