How many number or total size unmanaged disks can be created in Blob?

Question

How many number or total size unmanaged disks can be created in Blob?

Answer 1

@CHEN Mike Welcome to Microsoft Q&A Forum, Thank you for posting your query here!
For better clarification : Are you trying to create unmanaged disk or blob container in Azure Storage account?

Firstly, Let me explain what is the difference between managed disk and unmanaged disk?

Azure Virtual Machines use disks as a place to store an operating system, applications, and data. All Azure virtual machines have at least two disks: An operating system disk, and a temporary disk. The operating system disk is created from an image, and both the operating system disk and the image are actually virtual hard disks (VHDs) stored in an Azure storage account. Virtual machines also can have one or more data disks, that are also stored as VHDs.

Azure Managed and Unmanaged Data Disks have a maximum size of 4095 GB (with the exception of larger disks in preview). Azure Unmanaged Disks also have a maximum capacity of 4095 GB.

For more information, see:

Azure Disks - https://docs.microsoft.com/azure/virtual-machines/managed-disks-overview.

• Larger Managed Disks in Public Preview - https://azure.microsoft.com/blog/introducing-the-public-preview-of-larger-managed-disks-sizes/

Ultra SSD Managed Disks in Public Preview - https://docs.microsoft.com/azure/virtual-machines/disks-types.

Are unmanaged disks still supported?

Yes, but they'll be retired by September 30, 2025, and as of November 18, 2022, new customer subscriptions aren't eligible to create unmanaged disks. We recommend that you use managed disks for new workloads and migrate your current workloads to managed disks.

**Maximum number of blob containers, blobs, file shares, tables, queues, entities, or messages per storage account. "No Limit"

**

For more information on Scalability and performance targets for Blob storage, refer here

Please let us know if you have any further queries. I’m happy to assist you further.

---

Please do not forget to "Accept the answer” and “up-vote” wherever the information provided helps you, this can be beneficial to other community members.

Answer 2

Hello,

Directly ported from the following link:

FAQs for Azure Disks

https://learn.microsoft.com/en-us/troubleshoot/azure/virtual-machines/azure-iaas-vm-disks-managed-unmanaged

Q: What is the largest unmanaged disk size that's supported for operating system and data disks? A: The partition type that Azure supports for an operating system disk that uses unmanaged disks is the master boot record (MBR). Although you can allocate up to a 4 TiB OS disk, the MBR partition type can use only up to 2 TiB of this disk space for the operating system. Azure supports up to 4 TiB for unmanaged data disks.

---

If this is helpful please accept answer.