It has been a few days so far that I am trying to figure how to solve this problem. First of all, I am running a website with an average daily page view of 350,000. Previously, all ads management (tracking click and impression that each ads has served) and content were served in a single server with the following spec:
Server 1
OS: Windows 2008 R2 64-Bit
CPU: Intel® Core™ i5 - 4 cores
RAM: 8 GB
Storage: 2 x 1 TB hard drives
Bandwidth: 10 TB per month
To improve our website speed, I decided to separate the ads management script to another dedicated server because we have more than 15 advertisers to 30 advertisers per each page.
Server 2
OS: Windows 2008 R2 64-Bit
CPU: Intel® Core™ i5 - 4 cores
RAM: 4 GB
Storage: 2 x 300 GB hard drives
Bandwidth: 10 TB per month
The Problem
The problem is that Server 1 can handle both content and ads system. Now, that I take away the ads system and put it at Server 2. Server 2 can barely serve only ads system.
Test
First of all, I moved 75% of the ads to Server 2. And then, perform a ping to server: ping -t xxxxx. [I did the ping for 10 minutes and its following similar pattern as below]
Reply from xxxxx bytes=32 time=290ms TTL=116
Reply from xxxxx bytes=32 time=289ms TTL=116
Reply from xxxxx bytes=32 time=320ms TTL=116
Reply from xxxxx bytes=32 time=286ms TTL=116
Reply from xxxxx bytes=32 time=286ms TTL=116
Reply from xxxxx bytes=32 time=348ms TTL=116
Reply from xxxxx bytes=32 time=284ms TTL=116
Then, I moved 100% of the ads to Server 2. Then, perform a ping to server again. [I did the ping for 10 minutes and its following similar pattern as below]
Reply from xxxxx bytes=32 time=290ms TTL=116
Request timed out
Reply from xxxxx bytes=32 time=320ms TTL=116
Reply from xxxxx bytes=32 time=286ms TTL=116
Request timed out
Request timed out
Reply from xxxxx bytes=32 time=284ms TTL=116
Attempts
Increase MaxUserPort and TcpNumConnection
Restart the server
Increase IIS Max Instances and Instance MaxRequests
Server Resource
Only 10%-15% of the network connection is used
Only 10%-15% of the CPU is used
Only 25% of the memory is used
