What's the best way to benchmark maxCache 3.0 with SSDs?
Firstly, thanks in advance to anyone who finds time to look at this.
We're a software development company and previously outsourced the HW side of business but now we're looking into building our own private cloud. We recently purchased a few servers, one of which is supposed to act as a central storage. The specs are as follows:
The Seagate drives are set up as RAID 6 array. The SSDs are in RAID 1 and act as maxCache container which we turn on and off using maxView Storage Manager.
My first question - does this configuration make sense for a central storage of a private cloud where we plan to have other 3 compute nodes with two CPUs and lots of RAM on them?
My second question - would a similar configuration with less HDDs make sense for a MySQL database server for a reporting system with many concurrent requests?
My third question - I tried to measure performance of this server with and without SSD cache (maxCache). The best tool I came across was iozone which produced the attached charts (iozone -a -g 8G). I am totally puzzled as it looks like the performance with maxCache is in most cases lower than without it.
I was wondering if iozone is a good way to test for real-life scenarios or if I'm doing this all wrong.