520 questions with Azure Virtual Machine Scale Sets tags

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2 answers

Azure VM Insights with CloudLinux

I am using a VM in Azure for which the operating system has been migrated to CloudLinux 9. I would like to use VM Insights, but it seems as though that OS is not supported:…

Azure Virtual Machine Scale Sets
Azure Virtual Machine Scale Sets

Azure compute resources that are used to create and manage groups of heterogeneous load-balanced virtual machines.

520 questions
asked 2026-09-25T15:14:39.83+00:00
Paul Srch 0 Reputation points
answered 2026-09-27T22:00:30.1+00:00
Paul Srch 0 Reputation points
2 answers

Issue with the selecting Virtual machines scale set sizes

While creating a Virtual Machine Scale Set, I tried selecting up to five sizes but the options were disabled. I attempted to request a quota increase, but the system clearly indicated that I need to purchase a subscription first before proceeding. Now I…

Azure Virtual Machine Scale Sets
Azure Virtual Machine Scale Sets

Azure compute resources that are used to create and manage groups of heterogeneous load-balanced virtual machines.

520 questions
asked 2026-09-23T16:18:55.89+00:00
Afrin Pathan 0 Reputation points
answered 2026-09-23T21:50:09.44+00:00
Jose Benjamin Solis Nolasco 12,691 Reputation points Volunteer Moderator
1 answer One of the answers was accepted by the question author.

VMSS Overview displays one Public IP when Load Balancer has multiple frontend Public IPs

I have an Azure VMSS behind a Standard Load Balancer. The Load Balancer has multiple frontend Public IPs, and all load-balancing rules point to the same backend pool containing the VMSS instances. In the VMSS Overview blade, Azure displays a single…

Azure Virtual Machine Scale Sets
Azure Virtual Machine Scale Sets

Azure compute resources that are used to create and manage groups of heterogeneous load-balanced virtual machines.

520 questions
asked 2026-09-11T14:48:45.24+00:00
Apurva Pathak 960 Reputation points
commented 2026-09-13T08:07:20.71+00:00
Manasa Akula 775 Reputation points Microsoft External Staff Moderator
2 answers

InternalExecutionError - Unable to delete VMSS pwebnod1

Hi Azure Support Team, I am attempting to delete a Virtual Machine Scale Set (VMSS), but the operation continues to fail with a backend platform error. Here are the issue details: Resource Type: Virtual Machine Scale Set (VMSS) Resource Name:…

Azure Virtual Machine Scale Sets
Azure Virtual Machine Scale Sets

Azure compute resources that are used to create and manage groups of heterogeneous load-balanced virtual machines.

520 questions
asked 2026-07-27T11:47:18.9233333+00:00
Lalit Kumar Sharma 5 Reputation points Microsoft External Staff
edited the question 2026-09-10T21:33:04.5566667+00:00
Matthew Trilby-Bassett 225 Reputation points Microsoft Employee Admin
3 answers

Virtual Machine Scale Set

How to automate, and manage custom scalable Azure VM based Infrastructure solutions

Azure Virtual Machine Scale Sets
Azure Virtual Machine Scale Sets

Azure compute resources that are used to create and manage groups of heterogeneous load-balanced virtual machines.

520 questions
asked 2026-08-25T21:49:17.8833333+00:00
Nelson Narayan 20 Reputation points
answered 2026-08-28T10:56:14.1+00:00
SUNOJ KUMAR YELURU 18,736 Reputation points MVP Volunteer Moderator
1 answer

VMSS instances unexpectedly stopped with no caller-bearing Activity Log event

Affected instances: aks-sys01-xxxxxxx-vmss/0 at 2026-08-07 23:02:30 UTC aks-gen04-xxxxxxx-vmss/0 at 2026-08-07 23:04–23:05 UTC aks-gen04-xxxxxxx-vmss/1 at 2026-08-08 01:04:49 UTC Resource Health identified the events as “UserInitiated: Stopping and…

Azure Virtual Machine Scale Sets
Azure Virtual Machine Scale Sets

Azure compute resources that are used to create and manage groups of heterogeneous load-balanced virtual machines.

520 questions
asked 2026-08-14T19:59:14.3533333+00:00
Lisa Alexander 0 Reputation points Microsoft Employee
commented 2026-08-26T21:27:19.6+00:00
Lisa Alexander 0 Reputation points Microsoft Employee
0 answers

VMSS instances unexpectedly stopped with no caller-bearing Activity Log event

https://learn.microsoft.com/en-us/answers/questions/5975731/vmss-instances-unexpectedly-stopped-with-no-caller?page=1&orderby=helpful Asked this question but need additional investigation from azure side. The cluster autoscaler hypothesis has…

Azure Virtual Machine Scale Sets
Azure Virtual Machine Scale Sets

Azure compute resources that are used to create and manage groups of heterogeneous load-balanced virtual machines.

520 questions
asked 2026-08-18T01:49:28.79+00:00
Lisa Alexander 0 Reputation points Microsoft Employee
2 answers

How can I automate and manage custom scalable azure VM-based infrastructure solutions [Expert] in sandbox

How can I automate and manage custom scalable azure VM-based infrastructure solutions [Expert] in sandbox

Azure Virtual Machine Scale Sets
Azure Virtual Machine Scale Sets

Azure compute resources that are used to create and manage groups of heterogeneous load-balanced virtual machines.

520 questions
asked 2026-07-23T03:04:55.2066667+00:00
Nelson Narayan 20 Reputation points
answered 2026-07-23T11:09:29.1333333+00:00
Marcin Policht 109.6K Reputation points MVP Volunteer Moderator
1 answer

VMSS manual upgrade (Uniform mode) — resizing D2s_v3 instances to D4ls_v5 via model update + Instance Upgrade: confirming behavior, RI implications, and precautions

Hi all, We're running a Virtual Machine Scale Set (Uniform orchestration mode) with 3 instances. Originally 1 instance was on Standard_D4ls_v5 and 2 were on Standard_D2s_v3. Since D2s_v3 is being deprecated, However, checking individual instance details…

Azure Virtual Machine Scale Sets
Azure Virtual Machine Scale Sets

Azure compute resources that are used to create and manage groups of heterogeneous load-balanced virtual machines.

520 questions
asked 2026-07-08T14:43:25.23+00:00
K Yogesh 0 Reputation points
commented 2026-07-11T16:03:10.18+00:00
Vinodh247-1375 44,801 Reputation points Volunteer Moderator
2 answers

InternalOperationError while scaling VMSS

I am currently unable to scale one of my scale sets in or out - all scaling attempts fail with an InternalOperationError whether performed in the portal, CLI or via the API. Other scale sets appear unaffected. I can also make other changes to the VMSS…

Azure Virtual Machine Scale Sets
Azure Virtual Machine Scale Sets

Azure compute resources that are used to create and manage groups of heterogeneous load-balanced virtual machines.

520 questions
asked 2026-07-09T09:07:43.2533333+00:00
Mark Carrington 0 Reputation points MVP
answered 2026-07-09T09:45:21.65+00:00
Saraswathi Devadula 16,040 Reputation points Microsoft External Staff Moderator
1 answer

I am not able to configure auto-scaling for my existing VMSS node pools for my AKS cluster

I have a private AKS cluster, with two VMSS node pools, one for system and one for user. The node pool, when created, is preconfigured with manual scaling. However, I want to leverage the auto-scaling feature. For that I applied the below command, where…

Azure Virtual Machine Scale Sets
Azure Virtual Machine Scale Sets

Azure compute resources that are used to create and manage groups of heterogeneous load-balanced virtual machines.

520 questions
asked 2026-06-20T17:00:49.8933333+00:00
cargobuddy 30 Reputation points
commented 2026-06-23T14:35:41.4633333+00:00
cargobuddy 30 Reputation points
1 answer

Unable to Create Empty Flexible VMSS for Existing VM Migration – Managed Disk Validation Error

While creating a Flexible VMSS (without a scaling profile) to later attach the existing VM, every deployment attempt fails with the following error: {   "error": {     "code": "BadRequest",     "message":…

Azure Virtual Machine Scale Sets
Azure Virtual Machine Scale Sets

Azure compute resources that are used to create and manage groups of heterogeneous load-balanced virtual machines.

520 questions
asked 2026-06-23T11:01:28.05+00:00
Mohit Kumar (Capgemini America Inc) 0 Reputation points Microsoft External Staff
answered 2026-06-23T11:18:23.0766667+00:00
Manish Deshpande 8,215 Reputation points Microsoft External Staff Moderator
1 answer

While updating image reference, portal shows “No existing galleries in subscription"

We are trying to migrate a VMSS from EOL .NET 6 (WS2022 Marketplace image) as part of Project Standard ST0002 compliance While changing image reference (VMSS → Operating system → Change image reference), Azure Compute Gallery shows “No existing…

Azure Virtual Machine Scale Sets
Azure Virtual Machine Scale Sets

Azure compute resources that are used to create and manage groups of heterogeneous load-balanced virtual machines.

520 questions
asked 2026-05-25T00:55:52.06+00:00
Anil Mekala (INFOSYS LIMITED) 0 Reputation points Microsoft External Staff
answered 2026-06-01T09:48:12.6066667+00:00
Nikhil Duserla 9,950 Reputation points Microsoft External Staff Moderator
1 answer One of the answers was accepted by the question author.

Unable to create A Virtual Machine scale set in West US 2 region(spec: 2025-datacenter-azure-edition and Standard_DC4as_v6)

Hello Team, I am trying to create multiple VMSS in multiple regions, but out of 3, 2 of them were created successfully but one is failing with following error: Error: 'PatchMode' must be set to 'AutomaticByPlatform' for resources created with…

Azure Virtual Machine Scale Sets
Azure Virtual Machine Scale Sets

Azure compute resources that are used to create and manage groups of heterogeneous load-balanced virtual machines.

520 questions
asked 2026-05-06T14:16:24.3566667+00:00
Nishtha Agrawal 20 Reputation points Microsoft Employee
edited a comment 2026-05-18T12:35:00.4433333+00:00
Anonymous
2 answers

Unable to deploy VM sizes despite approved quota

My subscription has approved quota (65 vCPUs available) for the following VM families in EAST US: Bsv2 Easv5 Easv6 However, all VM sizes still show “Size not available” and “Request quota” in the Azure Portal. Deployment fails even though quota is…

Azure Virtual Machine Scale Sets
Azure Virtual Machine Scale Sets

Azure compute resources that are used to create and manage groups of heterogeneous load-balanced virtual machines.

520 questions
asked 2026-04-16T08:26:15.8266667+00:00
kamran 0 Reputation points
edited the question 2026-05-18T09:59:45.32+00:00
Anonymous
2 answers

Practice lab question on how can you automate and manage custom scalable Azure VM based infrastructure solutions (Expert Level)

In this challenge, you will create a custom image, use the image to create a scale set with availability zones, configure autoscale, and deploy an update to the scale set using a custom script extension. What steps, cmdlets using Azure Portal, CLI and…

Azure Virtual Machine Scale Sets
Azure Virtual Machine Scale Sets

Azure compute resources that are used to create and manage groups of heterogeneous load-balanced virtual machines.

520 questions
asked 2026-05-05T09:28:26.2266667+00:00
Nelson Narayan 20 Reputation points
edited a comment 2026-05-06T15:23:56.2766667+00:00
Anonymous
1 answer

Virtual Machine Scale Set Jump to 100% CPU Usage

Since 4/23/2026, we saw one of our virtual machine scale set instances jump to 100% CPU randomly. Just last night it seems the virtual machine scale set was restarted, causing 15 minutes of reduced availability for our service. We would like assistance…

Azure Virtual Machine Scale Sets
Azure Virtual Machine Scale Sets

Azure compute resources that are used to create and manage groups of heterogeneous load-balanced virtual machines.

520 questions
asked 2026-04-28T18:03:00.5166667+00:00
Heather Kemp 0 Reputation points Microsoft Employee
answered 2026-04-30T07:36:00.9133333+00:00
Alex Burlachenko 25,290 Reputation points MVP Volunteer Moderator
1 answer

Is the Azure VMSS IaaSDiagnostics extension being deprecated?

I'm not able to find information to confirm if the Azure VMSS IaaSDiagnostics extension, which is used for the Application Insights Profiler, is being deprecated. Is it the same extension as the Azure Diagnostic extension which was deprecated on March…

Azure Virtual Machine Scale Sets
Azure Virtual Machine Scale Sets

Azure compute resources that are used to create and manage groups of heterogeneous load-balanced virtual machines.

520 questions
asked 2026-04-14T23:18:12.6566667+00:00
Anh Le 0 Reputation points
commented 2026-04-20T17:05:18.3933333+00:00
Anonymous
2 answers

I ma not able to delete application

Brief summary of the issue Resource Group 'centralindia-app-gateway-rg' is stuck in Deleting (deprovisioning) state. VMSS is stuck with: ProvisioningState/failed/NetworkingInternalOperationError I am unable to: - Delete VMSS - Create resources (409…

Azure Virtual Machine Scale Sets
Azure Virtual Machine Scale Sets

Azure compute resources that are used to create and manage groups of heterogeneous load-balanced virtual machines.

520 questions
asked 2026-04-12T17:33:17.3466667+00:00
Mesala Govinda 0 Reputation points
commented 2026-04-17T04:26:45.0833333+00:00
Anonymous
2 answers One of the answers was accepted by the question author.

VM Scale Set hr-dev-web-vmss is stuck in a marked‑for‑deletion state

We are unable to complete deletion of resource group hr-dev-rg-xxejvp due to a Virtual Machine Scale Set (hr-dev-web-vmss) that is marked for deletion. The VMSS returns HTTP 409 – OperationNotAllowed for all update operations, which prevents us from…

Azure Virtual Machine Scale Sets
Azure Virtual Machine Scale Sets

Azure compute resources that are used to create and manage groups of heterogeneous load-balanced virtual machines.

520 questions
asked 2026-04-02T23:22:53.4066667+00:00
Jasmin leroux 40 Reputation points
commented 2026-04-10T11:54:24.6833333+00:00
Jasmin leroux 40 Reputation points