A storage controller interface includes, on a disk controller side of the storage controller interface, a first transceiver circuit configured to transfer a first block of user data to a read channel during a write operation, and a gate transmit circuit configured to, subsequent to the first block of user data being transferred, assert a gate signal to flush the first block of user data from the read channel. The storage controller interface further includes, on a read channel side of the storage controller interface, a second transceiver circuit configured to receive the first block of user data, a gate receive circuit configured to receive the gate signal, and a write fault transceiver circuit configured to selectively assert a write fault signal if the gate transmit circuit does not assert the gate signal subsequent to the first block of user data being transferred to the read channel.