3.3.5.15.14 Handling a File Level Trim Request

This section applies only to servers that implement the SMB 3.x dialect family.

When the server receives a request that contains an SMB2 header with a Command value equal to SMB2 IOCTL and a CtlCode of FSCTL_FILE_LEVEL_TRIM, message handling proceeds as follows:

If the Key field in FSCTL_FILE_LEVEL_TRIM, as specified in [MS-FSCC] section 2.3.75, is not zero, the server MUST fail the request with an error code of STATUS_INVALID_PARAMETER.

The server MUST process this request as a pass-through operation as specified in section 3.3.5.15.8.

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