Data and command flow among instruments, observation controller, and data archiver
Junichi Noumaru, Y. Mizumoto, Toshiyuki Sasaki, George Kosugi, Ryusuke Ogasawara, Jun A. Kawai, Yasuhiro Morita, Itsushi Akiyama, Yasutoshi Kusama, Shigeaki Iwai, Alan Fladmoe, Masahiko Furuichi · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1998
Subaru Observation Control System has selected Ethernet and FiberChannel as their standard interface to instruments. Every instrument should connect themselves with at least one of the LANs. Regarding the data transfer to Hilo base, the first concern is that no data must be lost during transfer process, whatever troubles may happen on hardware or network. In the hardware, we provide RAID, tape library at the summit and another RAID at the base facility. As the other measure in software, we have the data file management by Subaru Observation Software System, which enables users to track the location of the file. The hardware configuration of the summit simulation system, which is for the instrument test and so on, is presented. The telescope at the summit of Mauna Kea has been connected to the super computer at the base facility via OC12. This high-speed network is used not only data transfer and IP communication, but also for multimedia communication such as video or telephone. The multimedia project is introduced.