MODIFY FILE encountered operating system error 112(failed to retrieve text for this error. Reason: 15105)

DB를 생성하려는 데 이런 오류가 발생한다면?

TITLE: Microsoft SQL Server Management Studio

Create failed for Database 'TestDB'.  (Microsoft.SqlServer.Smo)

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ADDITIONAL INFORMATION:

An exception occurred while executing a Transact-SQL statement or batch. (Microsoft.SqlServer.ConnectionInfo)

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MODIFY FILE encountered operating system error 112(failed to retrieve text for this error. Reason: 15105) while attempting to expand the physical file 'C:\db\MSSQL\DATA\TestDB.mdf'.
CREATE DATABASE failed. Some file names listed could not be created. Check related errors. (Microsoft SQL Server, Error: 5149)