I have a task where I should benchmark two servers, one that has a RAID10 SATA configuration and second server has RAID10 SSD configuration.
Both servers would be placed as gateway mail server and should provide us an approximate value how much mail traffic they could handle and what would happen in case of huge loads - to test this I'm sending in from 100-500 emails per second and monitoring CPU usage/Disk I/O, queue size.
The I/O wait values are similar on both servers ( SATA: peak 10%, SSD peak 11% ), but the SSD server is faster in processing emails out of the queue - I'm wondering if the percentage of Disk I/O has different meanings on SATA and SSD drives due to the write/read difference.
Could you suggest a best way to compare both drives (servers) and if monitoring I/O wait is the best course of action ?
Looking forward to your suggestions!