SAS SSDs for vSAN Capacity Tier
after not compromising on the vSAN caching device, I was bothered by the SATA SSDs I was using as a capacity tier in my vSAN. By a lucky coincidence, I found 8x Samsung PM1633 960GB SAS SSDs on eBay for an acceptable price, so I struck. The 9th SAS SSD I needed I also found on eBay and also found its way to me from England quite quickly.
Here you can see the overview of my vSAN in the current configuration.
![](https://mb-labs.de/wp-content/uploads/2021/06/image-8-1024x398.png)
Since in an all-flash vSAN the read performance is solely influenced by the capacity tier, I did another Benshmark with the HCIBench 100% read with 16k block size.
![](https://mb-labs.de/wp-content/uploads/2021/06/image-17-680x1024.png)
![](https://mb-labs.de/wp-content/uploads/2021/06/image-10.png)
![](https://mb-labs.de/wp-content/uploads/2021/06/image-11.png)
Conclusion:
Now that my vSAN was delivering the performance I expected from my investment in hardware and resources, I could move on to another topic I had on my bucket list for my homelab. How it goes on, you can read in Homelab Version 1.8