Considerations of the technical feasibility and the cost implications of a disk-based archiving system to store digital observations coming from the ever growing suite of ESO telescopes and instruments began in 2000. The so-called Next Generation Archiving System (NGAS) started archiving data in a prototype system in 2001. Now the second generation of NGAS hardware has been installed in the new ESO data centre and about 98% of all data since 1998 have been migrated onto disks hosted on NGAS computers. In addition all data currently produced by ESO instruments is directly archived onto NGAS hosts both in La Silla and Paranal. Currently the ESO archive keeps about 125 TB of data online and the system has been scaled up to cope with the next data wave coming from VISTA and OmegaCAM.
|Publication status||Published - 1 Sep 2007|