Computer Science – Performance
Scientific paper
May 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000ivsg.conf..103w&link_type=abstract
International VLBI Service for Geodesy and Astrometry 2000 General Meeting Proceedings, edited by Nancy R. Vandenberg and Karen
Computer Science
Performance
Scientific paper
Recent and continuing developments of magnetic-tape data-storage systems for the computer industry provide a basis on which to create a high-performance, affordable high-data-rate (HDR) recording and playback system. Such a system would be suitable for VLBI and other applications which demand sustained data rates of a gigabit/sec (Gbps) or higher. These systems should be based on mostlyoff-the-shelf hardware which will be readily available from the computer industry, with a minimum of custom design, and which can easily grow to higher data rates as the recording industry advances. Furthermore, they must be capable of unattended operation for at least 24 hours. Based on currentlyannounced tape products and projected industry roadmaps, the cost per Gbps for such systems will drop from a Year 2000 cost of ~100K/Gbps to ~14K/Gbps by ~2007. This suggests that HDR systems in the range of ~-8 Gbps may be available for ~110K before the end of the next decade.
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