Question 1 high speed NVMe vs 2 NVMe SSDs for VMs

Mar 6, 2021
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Hello folks,

I'm looking at options for my new PC build, and I'd like to ask for some help.

Use-case: Virtualization on Windows host (VMWare Workstation) with at least 3 VMs (2 Windows 10 and 1 Ubuntu) running at the same time and using HDD due to background tasks but without high bandwidth.

Problem: speed of NVMe drives vs number of NVMe drives, for example:

Option 1: 1 x 3500/3300 MB/s 1TB drive for both OS and VMs, where all 3 VMs and the OS will be using the same drive
Option 2: 1x 3500/3300 MB/s 512GB drive for OS/VMs + 1x 2400/2000 MB/s 1TB drive exclusively for VMs, where the disk read/writes will be spread via 2 PCIE.

I assume the second option will be better because the read/writes will take place over 2 PCIEs and even the 2400/2000 MB/s drive should cope fine with 2-3 VMs.

Thanks in advance
 

USAFRet

Titan
Moderator
Mar 16, 2013
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My personal preference:
1 drive for OS and applications
Other drives for other things.

Me, including VM's. They live on their own SSD.
Mine are on SATA III SSD.
Your proposed secondary NVMe would be jsut fine.
 

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