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KB ID: 5672

OneDrive sync data loss in specific scenario

Last Updated: 09/18/2024

Affected models:
TS6000 series
TS5020, TS5010 series
TS3020, TS3010 series
LS700 series

Condition:
Using OneDrive sync and set to Bidirectional sync mode

Symptom:

1. Delete a subfolder, for example “Subfolder 1” on the local side. Then before the sync happens, create new files inside “Subfolder 1” on the remote side.

2. By the folder sync, the “Subfolder 1” on the remote side will be deleted. The newly-created files inside “Subfolder 1” will also be deleted from the remote side.

Note: This symptom will also happen if the deletion and creation is happening at the other way around. It means, if the Subfolder 1 on the remote side is deleted and files are created on the Subfolder 1 on the local side, the Subfolder 1 folders will be deleted from both side and files on the Subfolder 1 will also be deleted.

 

How to recover data:
Data deleted from OneDrive is retained in the Recycle Bin within OneDrive for a certain period of time, so it can be recovered.
However, the Recycle Bin data retention period is 30 days for personal accounts and 93 days for business accounts. 
Files deleted from the Recycle Bin cannot be recovered. 
For more information on Recycle Bin data retention period, please refer to Microsoft's website.