Windows errorcode: 87. Access to root directory is gone too

infscape-appliance
1

Hello, i have some problems to backup my File Server after recreating the DFS Path and i cant find a solution at the Forum.
I have at the BAckup Server and also on the File Server mire than 3x more disk space free than the backup needs.
I am using the latest Version of the Appliance

Error while getting files in folder “\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy23\DFSRoots\data\Innovation”. Windows errorcode: 87. Access to root directory is gone too. Shadow copy was probably deleted while indexing.

System version: 11.16
Linux kernel version: Linux 5.10.198
Based on: Debian GNU/Linux
Update channel: production

2

Perhaps increase/check the amount of shadow storage on the client for this disk and increase it if it is too low: vssadmin resize shadowstorage | Microsoft Learn

There might also an UI to change it in explorer by right clicking the volume → properties (depending on OS).

3

Have now make a resize of the drives and there are more space than it need.
Still get this error :

Errors 02.11.23 15:26 Error while getting files in folder “\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy115\DFSRoots\data\Storage”. Windows errorcode: 87. Access to root directory is gone too. Shadow copy was probably deleted while indexing.
Errors 02.11.23 15:26 Indexing files failed, because of error
Errors 02.11.23 15:26 Constructing of filelist of “SRV-FILE-01” failed: error - index error
Errors 02.11.23 15:26 Backup had an early error. Deleting partial backup.
4

Perhaps take a look at VolSnap events in the system event viewer (%SystemRoot%\System32\Winevt\Logs\System.evtx).

5

Hey, I am facing a similar/same issue.

These are my logs:

Info
	
03/11/25 23:46
	Starting unscheduled incremental file backup...
Info
	
03/11/25 23:47
	Scanning for changed hard links on volume of "C:\"...
Info
	
03/11/25 23:47
	Cannot open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy6\users\felix\appdata\local\microsoft\windowsapps\AffinityDesigner2.exe to read the file attributes
Info
	
03/11/25 23:47
	Cannot open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy6\users\felix\appdata\local\microsoft\windowsapps\Arc.exe to read the file attributes
Info
	
03/11/25 23:47
	Cannot open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy6\users\felix\appdata\local\microsoft\windowsapps\GameBarElevatedFT_Alias.exe to read the file attributes
Info
	
03/11/25 23:47
	Cannot open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy6\users\felix\appdata\local\microsoft\windowsapps\GetHelp.exe to read the file attributes
Info
	
03/11/25 23:47
	Cannot open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy6\users\felix\appdata\local\microsoft\windowsapps\MediaPlayer.exe to read the file attributes
Info
	
03/11/25 23:47
	Cannot open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy6\users\felix\appdata\local\microsoft\windowsapps\MicrosoftWindows.DesktopStickerEditorCentennial.exe to read the file attributes
Info
	
03/11/25 23:47
	Cannot open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy6\users\felix\appdata\local\microsoft\windowsapps\Skype.exe to read the file attributes
Info
	
03/11/25 23:47
	Cannot open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy6\users\felix\appdata\local\microsoft\windowsapps\SnippingTool.exe to read the file attributes
Info
	
03/11/25 23:47
	Cannot open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy6\users\felix\appdata\local\microsoft\windowsapps\WinDbgX.exe to read the file attributes
Info
	
03/11/25 23:47
	Cannot open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy6\users\felix\appdata\local\microsoft\windowsapps\WindowsPackageManagerServer.exe to read the file attributes
Info
	
03/11/25 23:47
	Cannot open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy6\users\felix\appdata\local\microsoft\windowsapps\XboxPcAppAdminServer.exe to read the file attributes
Info
	
03/11/25 23:47
	Cannot open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy6\users\felix\appdata\local\microsoft\windowsapps\XboxPcAppCE.exe to read the file attributes
Info
	
03/11/25 23:47
	Cannot open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy6\users\felix\appdata\local\microsoft\windowsapps\bash.exe to read the file attributes
Info
	
03/11/25 23:47
	Cannot open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy6\users\felix\appdata\local\microsoft\windowsapps\camostudio.exe to read the file attributes
Info
	
03/11/25 23:47
	Cannot open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy6\users\felix\appdata\local\microsoft\windowsapps\dbgsrvARM64.exe to read the file attributes
Info
	
03/11/25 23:47
	Cannot open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy6\users\felix\appdata\local\microsoft\windowsapps\dbgsrvX64.exe to read the file attributes
Info
	
03/11/25 23:47
	Cannot open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy6\users\felix\appdata\local\microsoft\windowsapps\dbgsrvX86.exe to read the file attributes
Info
	
03/11/25 23:47
	Cannot open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy6\users\felix\appdata\local\microsoft\windowsapps\ms-teams.exe to read the file attributes
Info
	
03/11/25 23:47
	Cannot open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy6\users\felix\appdata\local\microsoft\windowsapps\ms-teams_autostarter.exe to read the file attributes
Info
	
03/11/25 23:47
	Cannot open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy6\users\felix\appdata\local\microsoft\windowsapps\ms-teamsupdate.exe to read the file attributes
Info
	
03/11/25 23:47
	Cannot open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy6\users\felix\appdata\local\microsoft\windowsapps\mspaint.exe to read the file attributes
Info
	
03/11/25 23:47
	Cannot open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy6\users\felix\appdata\local\microsoft\windowsapps\notepad.exe to read the file attributes
Info
	
03/11/25 23:47
	Cannot open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy6\users\felix\appdata\local\microsoft\windowsapps\olk.exe to read the file attributes
Info
	
03/11/25 23:47
	Cannot open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy6\users\felix\appdata\local\microsoft\windowsapps\onecommander.exe to read the file attributes
Info
	
03/11/25 23:47
	Cannot open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy6\users\felix\appdata\local\microsoft\windowsapps\pbrush.exe to read the file attributes
Info
	
03/11/25 23:47
	Cannot open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy6\users\felix\appdata\local\microsoft\windowsapps\python.exe to read the file attributes
Info
	
03/11/25 23:47
	Cannot open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy6\users\felix\appdata\local\microsoft\windowsapps\python3.exe to read the file attributes
Info
	
03/11/25 23:47
	Cannot open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy6\users\felix\appdata\local\microsoft\windowsapps\ubuntu.exe to read the file attributes
Info
	
03/11/25 23:47
	Cannot open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy6\users\felix\appdata\local\microsoft\windowsapps\winget.exe to read the file attributes
Info
	
03/11/25 23:47
	Cannot open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy6\users\felix\appdata\local\microsoft\windowsapps\wsl.exe to read the file attributes
Info
	
03/11/25 23:47
	Cannot open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy6\users\felix\appdata\local\microsoft\windowsapps\wslconfig.exe to read the file attributes
Info
	
03/11/25 23:47
	Cannot open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy6\users\felix\appdata\local\microsoft\windowsapps\wt.exe to read the file attributes
Info
	
03/11/25 23:47
	Cannot open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy6\users\felix\appdata\local\microsoft\windowsapps\44576milosp.onecommander_p0rg76fmnrgsm\onecommander.exe to read the file attributes
Info
	
03/11/25 23:47
	Cannot open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy6\users\felix\appdata\local\microsoft\windowsapps\microsoft.skypeapp_kzf8qxf38zg5c\Skype.exe to read the file attributes
Info
	
03/11/25 23:47
	Cannot open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy6\users\felix\appdata\local\packages\canonicalgrouplimited.ubuntuonwindows_79rhkp1fndgsc\localstate\fsserver to read the file attributes
Errors
	
03/11/25 23:47
	Error while getting files in folder "\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy6\ProgramData\Microsoft\Windows\Containers\Layers\f772daa7-403a-4579-928b-dc4ed5e376c4\Files\Windows\WinSxS\amd64_3ware.inf.resources_31bf3856ad364e35_10.0.26100.1_de-de_9985875e648597c1". Windows errorcode: 87. Access to root directory is gone too. Shadow copy was probably deleted while indexing.
Errors
	
03/11/25 23:47
	Indexing files failed, because of error
Errors
	
03/11/25 23:47
	Constructing of filelist of "Felix-PC" failed: error - index error
Errors
	
03/11/25 23:47
	Backup had an early error. Deleting partial backup.

I also checked my VolSnap events. It seems to have deleted some snapshots (Because my C drive was completely full about a month ago). This might be the cause of the Issue:

Protokollname: System
Quelle:        Volsnap
Datum:         28.02.2025 23:11:59
Ereignis-ID:   24
Aufgabenkategorie:Keine
Ebene:         Warnung
Schlüsselwörter:Klassisch
Benutzer:      Nicht zutreffend
Computer:      Felix-PC
Beschreibung:
Es steht nicht genügend Speicherplatz auf Volume "C:" zur Verfügung, um den Schattenkopiespeicher für Schattenkopien von "C:" zu erhöhen. Möglicherweise werden aufgrund dieses Fehlers alle Schattenkopien auf Volume "C:" gelöscht.
Ereignis-XML:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Volsnap" Guid="{cb017cd2-1f37-4e65-82bc-3e91f6a37559}" EventSourceName="volsnap" />
    <EventID Qualifiers="32774">24</EventID>
    <Version>0</Version>
    <Level>3</Level>
    <Task>0</Task>
    <Opcode>0</Opcode>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2025-02-28T22:11:59.4114719Z" />
    <EventRecordID>6063</EventRecordID>
    <Correlation />
    <Execution ProcessID="4" ThreadID="460" />
    <Channel>System</Channel>
    <Computer>Felix-PC</Computer>
    <Security />
  </System>
  <EventData>
    <Data Name="DeviceName">\Device\HarddiskVolumeShadowCopy1</Data>
    <Data Name="VolumeName">C:</Data>
    <Data Name="DiffAreaVolumeName">C:</Data>
    <Data Name="NTSTATUS">c000007f</Data>
    <Data Name="SourceTag">146</Data>
    <Data Name="SourceFileID">0x0007</Data>
    <Data Name="SourceLine">1967</Data>
    <Binary>00000000070030000000000018000680920000007F0000C000000000000000000000000000000000</Binary>
  </EventData>
</Event>

I only see this warning once so it should not be an issue anymore? I increased Shadow Storage to 10% for each drive, but that didn’t do anything (Drives are at about 80% full so should be lots of space left):

image
image837×462 32.8 KB

I also tried creating a full file backup, which worked, in the hopes that would fix incremental backups but that also did not help.
The full file backup finished but the error log contains 2MB of errors like this:

Error while listing files in folder "\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy15\ProgramData\Microsoft\Windows\Containers\Layers\f772daa7-403a-4579-928b-dc4ed5e376c4\Files\Windows\WinSxS\amd64_microsoft-windows-s..gementwmi.resources_31bf3856ad364e35_10.0.26100.1_en-gb_6f123a03b66740b2". The system cannot find the path specified. (code: 3)

Any Help would be appreciated!

Thanks for UrBackup so far, I have used it for about 2-3 years now and until now zero issues.

Hope this can be resolved (:

Links I have visited that did not resolve my issue:

6

Looks like you are using some kind of Windows container support? It would need investigation how to best back those up. If you have some idea what you are using would be great? I can only see Container storage overview | Microsoft Learn and that one has different paths.
It has similar issues with backing up WSL1 file systems, but we managed to sit that one out…

For now perhaps just exclude e.g. C:\ProgramData\Microsoft\Windows\Containers from backup?

7

Wow that was fast! Thanks for the quick response!

I am using WSL2 and Docker but I also did before that issue occurred. Might be that the upgrade to windows 11 changed something with that…

I added the Containers path to the ignore list on the server, double checked it on the client and tried again.

It worked!

Thanks a lot!