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Cool Feature! Virtual Machine Scale Set with spot and standard VMs (Spot Priority Mix)

Hi All!

Azure offers spot and standard mixed virtual machine scale sets feature generally available now.

First, Let us refresh what is meant by spot?

Spot is nothing but azure offers some unused azure capacity VMs with uncertainity i.e for example, azure finds/has some VMs capacity unused which can be assigned/allocated to you based on your request with low cost than PAYG but azure can terminate/discontinue the spot allocated VM when it is requested by Pay-as-you-go-user.

Here before, VMSS had only standard (PAYG) VM without spot but now we can get VMs with both spot and standard mixed.

Please find the below steps and picture

  1. This feature works only in Flexible Orchestration Mode. So choose Flexible instead of Uniform.
  2. Check the "Run with Azure Spot discount"
  3. Click Next "Spot"
  4. Check the "Scale with VMs and Spot VMs"
  5. Mention the total number of VMs count. For example, Here we specify total count as 10
  6. Mention uninterruptible percentage. Here we specify 80%, so 8/10 VMs will be always yours.
  7. Spot VMs % generates automatically once you specified the above. so 2/10 VMs in azure control. Azure charges low cost from you than the previous 8 VMs but if anybody requests for it, that 2 VM will be discontinued from your subscription.

Hope you enjoyed!

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