Klint Gore írta: > Scott Marlowe wrote: >> On Mon, Dec 1, 2008 at 10:42 PM, Joshua D. Drake >> <jd@xxxxxxxxxxxxxxxxx> wrote: >> > On Tue, 2008-12-02 at 00:37 -0500, Greg Smith wrote: >> >> Tom on things that might ruin his tape backups: >> >> >> >> "Then of course there are the *other* risks, such as the place >> burning to >> >> the ground, or getting drowned by a break in the city reservoir >> that's a >> >> couple hundred yards up the hill...Or maybe being burgled by Oracle >> >> employees who are specifically after my backup tapes." >> > >> > What is a tape? >> >> Apparently something to do with backups. But I don't know what those >> are either... :-P >> > > "Never underestimate the bandwidth of a station wagon full of tapes > hurtling down the highway." —Tanenbaum, Andrew S. (1996). Computer > Networks. New Jersey: Prentice-Hall, 83. ISBN 0-13-349945-6. But the latency of a truck is awful :-) > A modern chrysler town and country(1) has a cargo capacity of 140.1 > cubic feet(2) letting it carry 17163 LTO4 (3) tapes at 800GB each. > Thats 13730TB. Say it has to get from San Francisco to LA (about 6 hrs > according to google maps directions(4)), that gives 2288TB/hour, or > 5.1 terabit/second. > > klint. > > 1. its more of a minivan than a station wagon these days but close > enough. halve the number of tapes if you're thinking of the classic > "woodie" http://www.allpar.com/old/townandcountry.html > 2. > http://www.chrysler.com/hostc/vsmc/vehicleSpecModels.do?modelYearCode=CUC200908 > > 3. dimensions from http://en.wikipedia.org/wiki/Linear_Tape-Open > 4. > http://maps.google.com/maps?f=d&saddr=san+francisco&daddr=los+angeles&hl=en&geocode=&mra=ls&sll=37.0625,-95.677068&sspn=58.598104,116.542969&ie=UTF8&ll=35.939855,-120.330885&spn=7.601811,14.567871&z=7 > > -- ---------------------------------- Zoltán Böszörményi Cybertec Schönig & Schönig GmbH http://www.postgresql.at/ -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
