Virtual machine scale sets - How to increase size of OS Disk?

Question

Hi Team,

I am running VMSS as Agent for compilation. Now i want to increase the OS Disk which is 30G as existing to 100G or more than that. How to perform it for VMSS. I am not able to any link or steps for the VMSS

Regards,

Raj

Answer 1

@Rajasekar Ravichandran Welcome to Microsoft Q&A, thank you for posting your here!!

I have tested the below AZCLI command in my test Subscription to increase the OS disk size on Virtual Machine scale set and you can execute the below command in CLI from cloud shell in Azure Portal.

Commands:

az account set --subscription "provide your subscriptionID"
az vmss update -n vmssname -g resourcegroupname --set virtualMachineProfile.storageProfile.osDisk.diskSizeGb=150 # Replace -n with VMSS name and -g with resourcegroup name

Output:

      "osDisk": {
        "caching": "ReadWrite",
        "createOption": "FromImage",
        "deleteOption": null,
        "diffDiskSettings": null,
        "diskSizeGb": 150,
        "image": null,
        "managedDisk": {
          "diskEncryptionSet": null,
          "securityProfile": null,
          "storageAccountType": "Premium_LRS"

        "name": null,
        "osType": "Linux",
        "vhdContainers": null,
        "writeAcceleratorEnabled": null
      }
    },
    "userData": null
  },
  "zoneBalance": null,
  "zones": null
}

Hope it helps!!!

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