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uedgars's avatar
uedgars
Copper Contributor
Nov 22, 2018

Server 2019: Poor write performance on S2D two node cluster

Hello!   I am trying to set up S2D on two node cluster for Hyper converged infrastructure. Unfortunately I observe significant write performance drop if we compare S2D storage with slowest physical...
clustering
Storage
Windows Server
LaMerk's avatar
LaMerk
Copper Contributor
Dec 18, 2018

Hi ,

Your nodes don’t comply with S2D requirements. Additionally, I would not recommend to measure performance by windows file copying, you’ll find arguments here:

https://blogs.technet.microsoft.com/josebda/2014/08/18/using-file-copy-to-measure-storage-performance-why-its-not-a-good-idea-and-what-you-should-do-instead/

Better use DiskSPD from MS.

 

Regarding the storage solution, you can look at virtual SAN vendors. I have a good experience of using Starwind vSAN for 2 servers cluster. The performance is better and no problem with configuration. You can find guide here:

https://www.starwindsoftware.com/resource-library/starwind-virtual-san-hyperconverged-2-node-scenario-with-hyper-v-cluster-on-windows-server-2016

  • uedgars's avatar
    uedgars
    Copper Contributor
    Jan 09, 2019
    Thanks! I tried to use DiskSPD and it works good and it seems simulates workload quite near to real world.

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