Data archiving and distribution of the Virgo antenna for gravitational wave detection

Author

Barone, F. ; Eleuteri, A. ; Garufi, F. ; Milano, L.

Author_Institution

Dipartimento di Sci. Fisiche, Naples Univ., Italy

Volume

47

Issue

2

fYear

2000

fDate

4/1/2000 12:00:00 AM

Firstpage

319

Lastpage

323

Abstract

We describe the architecture of the data archiving and distribution of the Virgo antenna for gravitational wave detection. The main characteristic of this system is the modularity of the architecture. This solution allows system upgrades without dramatic changes of the hardware and software components. The main performances are: 1. Maximum sustained data flow of 10 Mbyte/s on DLT tapes (35/70 Gbyte) for the raw data archiving; 2. Up to 1 Tbyte data archiving capacity on disk at a maximum sustained data flow of 25 Mbyte/s for the online data distribution; 3. Up to 10 Mbyte/s data retrieval flow for the on-line data distribution. The basic architecture of the system consists of two sections: an acquisition and storage section and a data management section. The former is a LynxOS based system with the disks directly connected to the CPU slave boards, the latter is a DEC-Unix Alpha Server (Data Server), NFS mounting the LynxOS disks through a Fast Ethernet network

Keywords

astronomy computing; data acquisition; file servers; gravitational wave detectors; local area networks; 10 Mbyte/s; 25 MByte/s; DEC-Unix Alpha Server; DLT tapes; Ethernet; LynxOS; Virgo antenna; data archiving; data distribution; data management; data retrieval flow; gravitational wave detection; modularity; on-line data distribution; online data distribution; Computer architecture; Detectors; Earth; Ethernet networks; Extraterrestrial measurements; Hardware; Interferometers; Network servers; Physics; Sampling methods;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.846172

Filename

846172