[OSM-dev] hard drive size

[Stephan Plepelits]

On Mon, May 11, 2009 at 11:03:14AM +0200, Iván Sánchez Ortega wrote:
> El Lunes, 11 de Mayo de 2009, Sam Mor escribió:
> >  it's not a production server, it' s a research server...
> >
> > we have 500 Gig, which file do we use :
> > planet-070711.osm.bz2                     11-Jul-2007 07:47  299M 
> > or
> > planet-071107.osm.bz2                     07-Nov-2007 10:26  1.2G 
> >
> > or more , what do you think?
> 
> Use the latest one, about 6.5GB. The amount of disk space used will be around 
> 3-4 times the planet size (for the PostGIS DB), plus the tiles. If you use 
> mod_tile, you will only render a small amount of tiles, so you shouldn't have 
> to worry about disk space (much).
Even more important in my opinion are the savings in CPU-time. On my
machine[1] to render all of Europe up to zoom level 12 took about 3-4 days.
And the time is increasing exponantially for each additional zoomlevel (as
each has 4 times the amount of tiles).

mod_tile just renders on demand ... parts nobody looks at, just don't get
rendered.

[1] http://www.openstreetbrowser.org

greetings,
        Stephan
-- 
Seid unbequem, seid Sand, nicht Öl im Getriebe der Welt! - Günther Eich
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| Stephan Plepelits,                                                  |
| Technische Universität Wien   -    Studium Informatik & Raumplanung |
| > openstreetbrowser.org > couchsurfing.com > tubasis.at > bl.mud.at |
| skunk at xover.htu.tuwien.ac.at       -       My Blog: http://plepe.at |
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