Abstract
To facilitate the common usage and the common ownership of the geological and geographical public data, we developed a data file server system on the Tsukuba Research Center Network of AIST (Agency of Industrial Science and Technology, MITI) .
Because the size of each data file is big, read-only and the total size of the files exceeds 1.5 Gbyte, we adopted an automatic CD-ROM exchanger system as the external data storage. There are so many users on the network that we can not make an entry for each user. So, we introduced Anonymous ftp service into the data file server system.
The system shows the ability of the common usage and the common ownership of the data without registration of user IDs and that the data can be secured against destruction. Because the transmission rate is high (about 440Kbyte/sec) and the time for administration can be reduced, the system may be efficient for a data server system of near future.
