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Druva Documentation

Troubleshooting “Failed while reading file-system structure” error on Windows


This article explains how to troubleshoot the “Failed while reading file-system structure” error which occurs during backup.


[2015-08-25 08:30:34,157] [ERROR] Error <class 'inSyncLib.inSyncError.SyncError'>:Failed while reading file-system structure. (#100000048). Traceback -Traceback (most recent call last):

File "inSyncLib\inSyncSyncer.pyc", line 4147, in dosync

File "inSyncLib\inSyncSyncer.pyc", line 4408, in syncfolders

File "inSyncLib\inSyncSyncer.pyc", line 1981, in sync

File "inSyncLib\inSyncSyncer.pyc", line 1932, in sync

File "inSyncLib\inSyncSyncer.pyc", line 2030, in __dosync

File "inSyncLib\inSyncState.pyc", line 1226, in next_change

File "inSyncLib\inSyncState.pyc", line 1242, in emit_next_change

File "inSyncLib\inSyncSyncer.pyc", line 3518, in check_thread_status

SyncError: Failed while reading file-system structure. (#100000048)


This error occurs due to NTFS file system/disk corruption.


Open event viewer on the client machine and check system event logs for the following errors.

Log Name: System 
Source: Ntfs 
Date: 17-08-2013 16:03:10 
Event ID: 55 
Task Category: (2) 
Level: Error 
Keywords: Classic 
User: N/A 
Computer: <>
The file system structure on the disk is corrupt and unusable. Please run the chkdsk utility on the volume C:

 If you see event id 55 in the System event logs then perform the following steps.

  1. Run chkdsk on the affected volume.
    Open command prompt with administrative rights and run “chkdsk” command in read only mode. If you find any errors in the output, contact your hardware vendor to fix the disk/file system issues.

        For more information about chkdsk, refer the following link.

  1. If the issue persists after resolving the disk/file system issues, contact Druva Technical Support.