Then track 2 is written at an offset equal to the reader width. The figure above demonstrates the appearance of 7 shingled tracks and how they are produced.įirst, the drive writes track 1. Hence the name of the magnetic recording method based on the effect. As a result, the recording process will somewhat resemble tile arrangement on a rooftop: the top row first, then the next row is laid slightly lower with the offset. But how does it record a track that is narrower than the writer? If the magnetic head writes a track and then adds another one on top of it, but with an offset equal to the reader width, then both tracks will be readable. For instance, the writer in modern drives is 50 µm wide, the reader is 10 µm. A higher density is achieved by the use of a reader in a magnetic head, which is 4-5 times narrower than a writer. The Shingled Magnetic Recording (SMR) technology increases the number of tracks per platter by 25%. We’ve also embedded the video at the end of this article for those who want to watch the whole process of data recovery.
From this article, you will find out what they actually are, what the difference between SMR and PMR drives is, how to bypass issues in SMR drives and get data access with the PC-3000 Portable III / Express / UDMA Systems.
Hello friends! These days we all very often face modern SMR drives.
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