Calling ePMR a big secret technology is not an illusion, it is not because it happened. And that Western Digital seems to have a very clear advantage over its rivals in terms of adoption.
So much so, that sorting is really rare, but we'll try and clarify and explain what it is and how it works, because the announcement is small and the company managed to get out of "rositas" without giving any explanation to Stacks Maintenance Date.
EPMR: another misconception in PMR that is, confidential now
As we have seen in other articles, MAMR and HAMR technologies are the future of the hard drive industry, which is the first step in increasing the capacity and vulnerability of these and their functionality.
But even though the top manufacturers already have products under test or distributing discs to their key partners, it will take a few years to reach the consumer market and at reasonable prices.
EPMR is a dictionary of power helps PMR and as a result is the creation of perpendicular recording technology that has become more widespread in recent years. The only known fact for sure is that WD technology studying MAMR has discovered that there is something new in the recording, which they can use for themselves.
EPMR is a combination of the MAMR and PMR technology component, leading to endless recording with the help of power. The big question is undoubtedly what kind of energy assistance is being used and how it is being used, something that has never been disclosed.
Both Seagate and Western Digital are working to acquire power-assisted technologies to limit the size of the current PMR-limited area.
The problem is basically that with PMR the so-called thermal is formed, the fragments remain unstable, very unreliable in their recording, especially from the quantity of 2 TB per plate.
WD is launching a three-phase approach to capture the entire market
Obviously, Western Digital doesn't want to leave their puppies in the head, because recent statements confirm that they are planning to diversify the market and as a result will offer three major technologies available: EPMR, MAMR, HAMR.
What we do know is that ePMR will come first, to later offer MAMR and finally to HAMR, something that has not been confirmed with a road map, but that the company has already said publicly.
The 18TB HC550 will arrive this year and the following year a 20TB version of the PMR will be seen and later a 24TB version with SMR is included.
To clarify something, WD says it will achieve a 20% benefit by moving to ePMR until 2023 and then moving on to 30 TB with SMR to later provide 50 TB, the physical limit they now wish for in 2026 .
Therefore, the future looks bright for the company, where we understand that once they have made the decision to jump to MAMR they will explain in detail the entry and release of ePMR.
