We estimate our networking and storage needs as follows: uv files are typically 1-3 GB. Combined uv files will probably be 4-6 GB. Map cubes are of order 0.5 GB. The total data volume is estimated to be 4 TB. The volume will ramp up over the next year, and then increase slowly over the remaining 3 years.
Movement of data will also ramp up over the next year, probably peak for a year, and then decline. During the peak, the movement of data (getting and putting) will be on average roughly about 8 GB per week per person with about 8 people working on data. In addition I would like to back the data (changes) to Lowell once a week. Co-Is at MPIA-Heidelberg and FIU are looking into acting as mirror sites as well.
One of the requirements of the Large Proposals is that we make the data products available to the public long-term. Currently the public web site is resident on the Lowell web site, and certain ancillary data are now populating that site. The team expects to release the HI data cubes and moment maps to the public at the end of 2009. At that time the Lowell web site will no longer be adequate for serving the public. We would like, therefore, to move this service to NRAO by the end of next year. Unlike the team web site, however, hosting the data products for the public is a long-term function. We would expect there to be international downloads at a lower but continuous level compared to the team requirements.
-- DavidHalstead - 2009-05-05