Seagate is still HAMRing away at improved HDD storage density
Subject: General Tech | December 9, 2014 - 01:26 PM | Jeremy Hellstrom
Tagged: HAMR, Seagate, hdd, TDMR
Seagate has been talking about HAMR for many years now but is finally getting close to being able to provide a working product. Currently they use perpendicular magnetic recording which should reach an areal density of 850/900Gbit/in2 in the coming year with a shingled version hitting 1Tbit/in2. Shingled platters store data in slightly smaller and overlapping tracks reminiscent of a shingled roof. In 2016 Seagate predicts the arrival of TDMR which will start at the same density as shingled PMR with an increase to 1.3Tbit/in2 when set up in a shingled format. 2017 is the tentative date for the arrival of the brand new technology and as of now Seagate is predicting an aureal density somewhere in the neighbourhood of 2Tbit/in2. The performance will never match that of flash based drives but the cost per gigabyte will be far more attractive for those who have more of a need to store large amounts of data than to have high speed access. Check out more at The Register.
"We have better visibility into Seagate’s view of the ending of the current perpendicular magnetic recording (PMR) era. The ending is delayed by narrowing the tracks so as to cram more of them on a platter. This is called two-dimensional magnetic recording (TDMR) and should arrive in 2016."
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