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Expanding an OS disk on an Azure VM

Anonymous
2022-05-09T15:23:15.727+00:00

Hi.

We have 2 virtual machines in Azure that were spec'd incorrectly by the vendor and we find we are running out of disk space on the OS disk. Is there a way to increase the size of the OS disk without having to recreate the VM?

These are both production VMs. They can be shut down for a small period of time but whatever has been installed on the OS disk, has to remain installed. Is this even possible?

Azure Disk Storage
Azure Disk Storage

A high-performance, durable block storage designed to be used with Azure Virtual Machines and Azure VMware Solution.

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  1. guillaume v 11 Reputation points
    2022-05-09T16:09:11.957+00:00

    Hello,

    This should be the process:

    1. Stop the VM
    2. Go to Disks
    3. Select the disk
    4. Click Size + performance
    5. Select the SKU
    6. Restart the VM

    2 people found this answer helpful.
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  2. Ravi Kanth Koppala 3,471 Reputation points Microsoft Employee Moderator
    2022-05-10T05:52:49.81+00:00

    @Anonymous ,

    Thank you for reaching out to the Microsoft Q&A platform. Happy to answer your question. Expanding the OS disk on the Azure VM is a two-step process.

    1. You will need to expand the managed disk size in the Azure Portal: https://learn.microsoft.com/en-us/azure/virtual-machines/windows/expand-os-disk#resize-a-managed-disk-in-the-azure-portal
    2. Once that is complete you will need to expand the volume in the operating system: https://learn.microsoft.com/en-us/azure/virtual-machines/windows/expand-os-disk#expand-the-volume-in-the-operating-system

    Please suggest if you have any questions. Happy to assist you. Thanks.

    ----------

    Please "Accept as Answer" and Upvote if any of the above helped so that, it can help others in the community looking for remediation for similar issues.

    1 person found this answer helpful.

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