Abstract
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.
Original language | English |
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Pages (from-to) | 27-31 |
Journal | The Messenger |
Volume | 129 |
Publication status | Published - 1 Sept 2007 |
Externally published | Yes |