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SC-2222 asked singhh-msft commented

How to increase disk performance in DevTest Labs

Hi,

Can you give me a suggestion to increase disk performance of virtual machine?
I changed the VM size from B4ms to D4s_v3 and disk performance in IOPS is the same.
Why ?

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Here are the measurement results:

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azure-virtual-machines
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@SC-2222, does the below answer help you?

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Dev073 answered

Hi, thanks for the post.

I think its due to Disk IO capping. what's your Disk capacity and tiers. ?The disks have their own IOPS and throughput limits.

Go though this article, it cleanly explains about the VM and DISK IO capping and how it works.
https://docs.microsoft.com/en-us/azure/virtual-machines/disks-performance

Regards,
Dev

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