Richard Weait wrote:
So what is a reasonable guess for how much bandwidth we would like for
one of our initial storage nodes?
How does this change if we add an initial tile server / tile cache node?
How does this change if we add an initial catalog server?
I know that when we talk about the bandwidth that we can consume the
best answer is "All of it" but I don't really want to put that in a
proposal.
I think one way to approach this is to try and quantify some assumptions
about usage. So building a simple usage model will probably help and
then people can debate the model and whatever people agree to from a
model point of view will dictate the bandwidth.
So something like this should get you started:
o types of services:
Catalog queries
WMS images from something like OpenLayers
Bulk data uploads, bulk data downloads
other transactions
o number of users for each each service per time period
o avg number of transactions per user per service
o avg size of transactions
o other exceptional transactions like site morroring
- how much?, how often?
etc, etc.
Then do the math, or put it in a spreadsheet and others can tweak the
numbers as they see fit. This will drive the discussion into concrete
assumptions that people need to discuss and understand and agree upon
and it will give you an initial number to start working with.
-Steve W
_______________________________________________
talk mailing list
[email protected]
http://openaerialmap.org/mailman/listinfo/talk_openaerialmap.org
