[tahoe-dev] Tahoe-LAFS v1.8 planning / Administrivia / Big Picture

[Nathan Eisenberg]

> I think it'd be neat if we had the ability to define "availability zones", where you
> could specify the replication ratio per-zone instead of globally. For instance, if
> you have one zone with the default 3-of-10 share ratio, and another zone with a
> 2-of-5 ratio, Tahoe would upload 10 shares to the first zone, and 5 shares to the
> second zone, and have a guarantee that if either zone went down completely,
> the data would still be accessible.
> 
> (This would also open up some cool scenarios like being able to set up a grid on
> the local network and prefer that for read performance, but still being able to
> automagically fall back to cloud-based storage if something fails.)
> 
> As far as UI for this, it'd be possible to combine this with the work that's going
> on right now with multiple introducers, and say that all servers met through a
> given introducer constituted an availability zone.
> This would make it really easy to set up and administer independent zones.

I love it, especially the synergy with multiple introducers!

Best Regards,
Nathan Eisenberg