The Paris Observatory

Storage and archiving of astronomical images providing open access to the scientific community

The selected solution is the Active Circle software platform that provides a virtualized file system in the grating data management features: replication, continuous protection, HSM, and archiving. There are two servers: a Sun Fire X4500 running Solaris with a capacity of 36 Tb, selected for its cost-capacity ratio and its support of the ZFS file system; and an HPP reliant server running Linux with 5Tb of disk space and which is used for managing the two tape libraries (HP and Overland) with an over all capacity of 100 Tb with three LTO 4 tape drives.