Sql server keeps data after I delete all files in /var/opt/mssql/data directory (docker mount)?

Question

I bind mount the sqlData directory to container: -v sqlData:/var/opt/mssql/data.

Then I deleted the sqlData folder (where the .mdf ldf files are). Containers still do not lose data. And I can use backup feature to restore data.

But is there a way to restore .mdf, .ldf files?

Answer 1

Hi @VŨ DUY

You could repair SQL MDF and NDF file by this TSQL command:

EXEC sp_resetstatus [YourDatabase];
ALTER DATABASE [YourDatabase] SET EMERGENCY
DBCC checkdb([YourDatabase])
ALTER DATABASE [YourDatabase] SET SINGLE_USER WITH ROLLBACK IMMEDIATE
DBCC CheckDB ([YourDatabase], REPAIR_ALLOW_DATA_LOSS)
ALTER DATABASE [YourDatabase] SET MULTI_USER

Please refer to this article for more details or other methods: Repair Crashed SQL Server.

Best regards,

Cosmog Hong

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