Web Hosting : Creating a high traffic hosting setup

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This web hosting thread started by wonderpoint on 04 October 2008

I am looking for advice on creating a setup that will host a site which is expected to receive 50-60K visitors in the first few hours after its launch. The site is membership based and the backend (member system) runs on PHP5-MySQL5.

Here is what I have thought of until now.

Site’s sales page (which also happens to be the first page that visitors hit) hosted with Amazon S3 service. All public media files are off loaded to amazon S3 service to keep the number of requests on the hosted setup to minimum.

At the front we can have a high performance firewall like Cisco ASA 5520 followed by two dedicated load balancers in Active/Active state.

Behind the load balancers we have 3 front end servers acting as web-servers. These have SAS disks, 4GB RAM, RAID 1 setup, Dual Xeon Quad core processors each.

Behind the front end servers – we have a dedicated load balancer for the database cluster.

The database cluster consists of 3 Storage/API nodes and one of the front end servers acts as the management node. Each storage node has 8GB RAM, Dual Xeon Quad core processors, 4x RAID 10, SAS setup.

The private network is on a GigaLan.

Do you see any possible/obvious flaw in this design or anything that should be added/subtracted from the setup?

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