New VSAN Install, Poor iSCSI Performance?

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ZacharySilas
Posts: 1
Joined: Tue Jun 23, 2020 10:19 am

Tue Jun 23, 2020 10:20 am

I've just installed StarWind on a two-node Hyper-V cluster. Copy a file to the new CSV is 220 MB/s, copy from server to server over the 10 gig it's 900+ MB/s. Is there any way to fix it?
Last edited by ZacharySilas on Wed Jun 24, 2020 6:40 am, edited 1 time in total.
yaroslav (staff)
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Posts: 2279
Joined: Mon Nov 18, 2019 11:11 am

Tue Jun 23, 2020 8:52 pm

That's the wrong way to measure performance. Please check out this article to get reliable benchmarking results https://www.starwindsoftware.com/best-p ... practices/.

Also, it's a known issue: Large files in Windows Server 2019 are transferred too slow https://docs.microsoft.com/en-us/window ... e-transfer.
jrjong
Posts: 2
Joined: Fri Aug 07, 2020 2:42 pm

Thu Aug 13, 2020 1:08 pm

yaroslav (staff) wrote:That's the wrong way to measure performance. Please check out this article to get reliable benchmarking results https://www.starwindsoftware.com/best-p ... practices/.
Also, it's a known issue: Large files in Windows Server 2019 are transferred too slow https://docs.microsoft.com/en-us/window ... e-transfer.
Thanks for the links yaroslav. Guess I'd been doing things the wrong way. Hope this will work out.
Last edited by jrjong on Fri Aug 14, 2020 8:05 am, edited 1 time in total.
yaroslav (staff)
Staff
Posts: 2279
Joined: Mon Nov 18, 2019 11:11 am

Thu Aug 13, 2020 1:23 pm

No worries. Now you know the right way to benchmark the performance of StarWind VSAN.
Let me know if there is anything else I can help you with.
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