I've been pointed in the direction of the High Performance group to discuss my requirements (http://drupal.org/node/317535). I’m looking at building a gallery site that runs the following predicted metrics each month:
• 320k visits
• 200k unique visits
• 5m page views
• 14k uploads
• 16Gb total uploads
Anecdotally I'm being told that running this on Drupal is a risk, but all the documentation suggests that as long as we have good (dedicated) hardware, good 'normal' website tuning practices and a caching facility, then we should be OK.
When I'm evaluating a development partner, what questions should I be asking in terms of their understanding of high volume sites to make sure that they build Drupal in the right manner to make our site fly??