SAO RAS, Nizhnij Arkhyz

Miscellaneous Information

Miscellaneous Information

Abstract Reference: 30127
Identifier: P4.21
Presentation: Poster presentation
Key Theme: 4 Long-term Management of Data Archives

Long-term data management in the SAO RAS archive system (lightning talk)

Zhelenkova Olga P., Vitkovskij Vladimir V., Plyaskina Tatiana A., Shergin Vladimir S., Chernenkov Vladimir N.

The data of experiments require archiving and reliable storage with accessibility and semantic reenterability. In the SAO RAS in the early 80-ies for these purposes a digital archive of radio observations was created. Then with the introduction of CCD cameras into observations in the late 80s we started to develop a data bank, which united the different digital collections. Latter we realized an archiving system with a search information system. To date, the archive capacity is 1.5 TB, also there are 0.5 million files and 1 million records in the database. The system supports free web access to 16 local archives with digital collections of different devices used, or been used in the telescopes of the observatory. Two servers with PostgreSQL database each support the system. Each server data storage area has a similar structure and content. One server supports and contains the working version of the system, the second one supports the test version, with which we carry out and test all the new developments. The system was developed so that it was possible to add a new collection. There is a possibility of hosting other Russian telescope archives. In order to provide additional reliability of information keeping, archival data is still stored on the optical CD/DVD disks.