Need to Reduce Data disk size of Linux VM on azure

Question

Need to Reduce Data disk size of Linux VM on azure

Answer 1

Shrinking the size of Azure Managed disks (Data disks) are not supported presently. However, you can go for following options

1. Export the data disk as vhd and shrink the exported VHD. Create a new managed disk from the VHD and create a new VM from the new managed disk.
2. Attach a new disk to the vm with the required size and copy the data from the existing disk to the new disk. Finally, delete the existing disk

Answer 2

@kumar b Welcome to Microsoft Q&A Forum, Thank you for posting your query here!

You can't reduce the size of a disk, so you have to attach another disk and copy the content over using Azcopy, robocopy or other method.

At the moment, we cannot directly shrink or downsize the azure managed disks. Azure does not support the operation. For more details, please refer to the Faqs for more information.

If we want to downsize the azure disk. We need to export the disk as vhd then shrink the exported VHD. At last, create a new managed disk from the VHD and create a new VM from the new managed disk. For more details, please refer to here

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

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