If the subsystem encounters a tape mark during a read operation, the host system is informed. In most magnetic tape subsystems there is a skip to tape mark (or tape-mark search) command that causes the tape to be run to the next tape mark without transferring any data to the host; sometimes there is also a multiple-skip command containing a parameter n, which causes the tape to skip to the nth tape mark. Skip operations are sometimes performed at a higher speed than that used for reading.
It is conventional to write a double tape mark after the last file in a volume.
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