We are moving from a very tweaked Movable Type 2.61 to Drupal. (I know, I know ... Dinosaurs! :P ).
Our site actually has more than 21.000 entries and more than 700.000 coments. We find a solution to move to Drupal (in fact, we are in the process now). Our site has a lot of traffic (70.000 visits/day and serve over 200/250.000 pages/day - roughly-).
We are working over a 2 (equal) servers (one for http, other for Databases) with this configuration:
- FreeBSD Operating System
- Intel Celeron 2.8GHz CPU
- 2GB DDR3200 SDRAM
I am running a Drupal site on Dreamhost shared hosts. Currently, the usage is small. However, I am planning to go on marketing campaign and I am wondering if anyone know the minimum/maximum number of hits that a Drupal installation can support before it needs to be moved to a Dedicated host.
On a related question, How many servers do I need if I expect 1 million hits per day?