LGMR


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LGMR

(Laser Guided Magnetic Recording) A SuperDLT technology developed by Quantum that uses both sides of the tape. The recording side contains no servo tracks and is completely filled with data. The reverse side contains a specially formulated coating for an optical track, and a laser does the tracking.
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The POS is likewise a core enabler of LGMR technology.
SDLT technology offers what the developers claim is a newer PRML channel that improves on traditional PRML disk drive technology by bringing increased performance and capacity to LGMR technology and high-performance tape drives.
The advanced, high-efficiency PRML channel used in LGMR was developed as a collaborative effort by Quantum and Lucent Technologies.
LGMR ensures higher cartridge capacities by allowing for the substantial increase in the number of recording tracks and recording density on the data surface of the media by servoing from optical targets on the media's back side.
LGMR offers substantial benefits and enhancements to magnetic recording, including:
Although the LGMR method may save inconvenience, media manufacturers can easily eliminate additional costly steps in the LTO method by writing the servo tracks as they load the tape into their cartridges.
Using the LGMR optical tracking method is like driving a car on a road without visible lanes while watching a median over 1.8 miles away.