[tahoe-dev] Tahoe as cloud back end for a local application

Eugen Leitl eugen at leitl.org
Tue Feb 21 09:21:59 UTC 2012


I'm investigating porting an Apache/PHP/MySQL application currently
using local storage to use a private Tahoe grid (servers with public
IPs) as the backend. Total storage size is about 10 TBytes,
using about a million files. The application would typically
run on local LAN behind NAT.

Question: how many servers would one need to make this reliable?
How much storage should each server contribute for good performance? 
How slow would access to such files be (user queries local
DB via a http front end, then retrieves the hits from the cloud),
all assuming fast servers on the public Internet? Under 10 seconds,
over 10 seconds?

Thanks!



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