If you’re going to compare the SSD volumes to EBS, you need to compare it to
provisioned iops volumes, which would be $400 a month for 4000 iops, and a
minimum size of 400GB, for a total of $450/month. EC2 is more expensive for an
osm2pgsql DB, which you’d want about 300GB currently and more in the future.
Just for comparison, Hetzner will rent you a 64GB RAM 6-core server with a
600GB SSD for 210 €/month, 100 € setup, or 32GB RAM, 4-core server with 2x
240GB SSD for 140 €/month, 150 € setup. OVH has a 64GB 4-core server with 2x
300GB SSD for 170€/month with no setup. Of course, all of these options should
have far faster IO than a 4k iops volume.
If you’re doing dev work the OVH option is cheaper than EC2 if you’d need more
than about a week of instance time in a month.
The conclusion you can draw from all of this is that if you’re doing
prototyping or dev work, use an extract, have enough RAM and tune your
postgresql for your use case.
If you’re doing benchmarking this does not apply, but that’s a special case
where you really need to give careful consideration to the workload and
specifications of the machineyou’re using.
From: malcolm stanley [mailto:[email protected]]
Sent: Saturday, June 22, 2013 2:20 PM
To: Jeffrey Ollie
Cc: Paul Norman; OSM-Dev Openstreetmap
Subject: Re: [OSM-dev] Tile server
If you look here http://www.rackspace.com/cloud/block-storage/pricing/ you will
see pricing for Rackspace SSD is $0.70 cents per GB per month.
Its hard to compare apples to apples as they include IO in the price.
Having said that, it looks like at that price a 500G volume for a world
database would run about $350 per month.
a comparable Amazon volume would be far less @12.5 cents as opposed to $0.70,
but then you have to pay IO AND you can only use them on larger instances, so
you are going to cost up on that side.
Its almost like you need a case study comparing the offerings based on specific
usage profiles.
for instance, a dev instance on amazon is going to cost less (I **think**)
because you would have low IO and low disk costs.
as you ramp the IO up and start to add performance to AMZ, that would probably
change pretty quickly
_______________________________________________
dev mailing list
[email protected]
http://lists.openstreetmap.org/listinfo/dev
