Windows Server 2019 cannot write data despite having insufficient disk space

Question

On my Windows Server 2019 machine, I'm unable to write data to a disk because of insufficient disk space even though Windows says I still have available space. This isn't happening with any other disks and I'm not sure why, or how to fix it. Can someone help?

Answer 1

It sounds like there might be a few potential issues at play here. Let's troubleshoot this step by step:

Check Disk Space: First, double-check the available disk space on the problematic disk. You can do this by opening File Explorer, right-clicking on the disk in question, selecting "Properties," and reviewing the available space.

Check Disk Quotas: Ensure that disk quotas are not enabled on the disk. Disk quotas can restrict the amount of disk space available to users or groups, which might be causing the issue.

Check File System Permissions: Verify that you have the necessary permissions to write to the disk. Even if there's available disk space, if you don't have write permissions, you won't be able to write data to the disk.

Check for Errors: Run a disk check to identify any potential errors on the disk. Open Command Prompt as an administrator and run the command chkdsk /f X: (replace "X" with the drive letter of the problematic disk). This will check for and repair any file system errors.

Answer 2

Hi dylan,

Hope you're doing well.

1. Open cmd as an administrator and run the following command to check disk space:

diskpart

list disk

list volume

2. Ensure that disk quotas are not enabled on the disk. Disk quotas can restrict the amount of disk space available to users or groups, which might be causing the issue.
3. Opne "Event Viewer" to check whether any potential on the disk.

Best Regards,

Ian Xue

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