The OS load time in an SSD is just amazing. And, I thought I’d track a few figures to just show the difference.
Test System Configurations
| HDD Test Box | SSD Test Box | |
| CPU | Core i7-3770K | Core i7-4770K |
| RAM | G.Skill 16 GB DDR3 1600 | G.Skill 32 GB DDR3 1600 |
| SSD (OS) | Mushkin 480GB SATA III | Samsung 750GB SATA III |
| HDD | Seagate 2TB 5900 RPM |
One thing to note beforehand is that the HDD used in the test was 5900 RPM, which I don’t think most people use.
Test Description
Using Oracle VirtualBox 4.3.0, I setup a couple of virtual machines of Windows Server 2012 R2 with different roles installed. And, the speed test was just the amount of time it took to Power On the virtual machine, until the “grey login screen” appeared.
On the HDD Test Box, the .vhd image was on the HDD drive. On the SSD Test Box, the .vhd image was on the SSD drive.
All virtual machines were configured with 1 CPU and 1 GB RAM, except for SQL which had 2 CPU and 2 GB RAM. I ran some tests on different CPU and RAM pairings and found that 1 CPU/1 GB was pretty close to optimal for load times; and it was plenty of power for a home network configuration with one user. I also noticed that as I added more RAM into the configuration, the load times became longer because extra time was being spent allocating the RAM.
Results
| HDD Test Box (secs) | SSD Test Box (secs) | |
| DC/AD/DNS | 87 | 49 |
| SQL | 50 | 10 |
| Azure Pack AdminAPI | 60 | 11 |
| Azure Pack AdminAuth | 58 | 9 |
| IIS | 65 | 13 |
It’s a pretty nice speed improvement.
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