HP A3542A User Manual page 12

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Use switch 3 to configure the drive's response to DDS MRS tapes. The Media Recognition System
(MRS) is a method by which a tape drive can recognize a data-grade tape. The tape has a series of
stripes on its transparent leader tape which the drive can detect. By default, the drive treats a non-Media
Recognition System tape as read-only and will not write data to it. However, it is possible to switch the
recognition system off using the configuration switches on the underside of the tape drive. If switch 3 is
set to ON, the drive will treat all DDS tapes the same.
Switch 3
ON The Media Recognition System is disabled. All DDS tapes will be treated the
same, whether they possess media recognition stripes or not.
OFF The Media Recognition System is enabled. Non-MRS tapes are treated as if
they were write-protected.
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Leave switches 4-8 in their default positions (ON).
1-4
Meaning
A3542A DDS-3 Tape Drive User's Guide