Users cannot save to a share that has plenty of free space
A quota or a file screen is refusing the write, and the message the user gets says the disk is full.
What you see
"There is not enough space on the disk" saving to a share, while the volume shows hundreds of gigabytes free. Or a specific file type is refused with a generic error.
What is actually wrong
A File Server Resource Manager quota on the folder, an NTFS disk quota on the volume, or a file screen blocking the extension.
Codes and articles
Fixes (2)
Find the quota that is being hit
A folder or user cannot write.
List the FSRM quotas and their usage.
Get-FsrmQuota | Format-Table Path,Size,Usage,SoftLimit,Template -AutoSizeCheck for auto-apply quota templates, which create a quota on each subfolder automatically and are easy to forget about.
Get-FsrmAutoQuota | Format-Table Path,TemplateAn auto-apply template on a home directory root creates an individual quota for every user folder. The quota that is full will not appear in a listing of the parent, which is why this is so often missed.
Check NTFS disk quotas as well, which are a separate mechanism on the volume.
fsutil quota query E:Raise the specific quota, or move the user to a larger template.
Set-FsrmQuota -Path 'E:\Users\jbloggs' -Size 20GBCheck whether the space is genuinely needed, or whether an old profile or PST is sitting in the folder.
Get-ChildItem 'E:\Users\jbloggs' -Recurse -File | Sort-Object Length -Descending | Select-Object -First 15 FullName,@{n='MB';e={[math]::Round($_.Length/1MB,1)}}Set the notification thresholds so users are warned before they are stopped.
Get-FsrmQuotaTemplate | Format-Table Name,Size,SoftLimit
Get-FsrmQuota -Path 'E:\Users\jbloggs' | Format-List Path,Size,Usage,PeakUsageFind the file screen blocking the type
Certain file types are refused.
List the screens and the groups they use.
Get-FsrmFileScreen | Format-Table Path,IncludeGroup,ActiveGet-FsrmFileGroup | Format-Table Name,IncludePattern -AutoSize
Check the events, which record every blocked write with the file name and the user.
Get-WinEvent -LogName Application -MaxEvents 100 | Where-Object ProviderName -like '*SRMSVC*' | Format-Table TimeCreated,Id,Message -WrapThe user's error message says the disk is full or access is denied, and never mentions a file screen. The event log on the server is the only place the real reason is written down.
Add an exception for the specific path rather than removing the screen.
New-FsrmFileScreenException -Path 'E:\Shares\Design' -IncludeGroup 'Image Files'Or adjust the file group if the extension is legitimate across the estate.
Set-FsrmFileGroup -Name 'Executable Files' -IncludePattern @('*.exe','*.com','*.bat')Check whether the screen is active or passive. A passive screen only reports; an active one blocks.
Get-FsrmFileScreen | Format-List Path,Active,IncludeGroup,Notification
Where this stops. This write-up was written and checked by hand. It says what each step changes, how to confirm it worked and how to reverse it, and anything destructive is flagged before you reach it. If it does not match what your machine is doing, search the Support Centre for the exact code or message — and when something needs a person, get in touch.