18 TB HDDs: Toshiba Collaborates with Showa Denko for MAMR HDDs
Showa Denko Ok.Ok. (SDK) introduced Thursday that the event of its microwave-assisted magnetic recording disks (MAMR) has been accomplished for subsequent era exhausting disks. The corporate will provide plates to Toshiba, which is anticipated to start operation this 12 months with the brand new 18 TB nearline exhausting drives. Along with MAMR media, Showa additionally plans to launch exhausting disks based mostly on HAM know-how (Warmth Assisted Magnet Recording).
SDK's new three.5-inch disks have a capability of 2TB and a brand new magnetic recording layer whose coercive subject could be diminished through the use of microwaves (see our temporary description of MAMR know-how ). The SDK doesn’t specify which magnetic alloy or substrate to make use of for its 2TB media. In keeping with Western Digital, each needs to be similar to right this moment's plates based mostly on Vertical Magnetic Recording (PMR) know-how. Which suggests predictable costs and reliability for Toshiba and its shoppers.
In keeping with the SDK, Toshiba plans to make use of 9 18 TB MAMR-based nearline HDDs, which can start sampling later this 12 months (and are prone to be commercially accessible by 2020). Nonetheless, it appears to be like like Showa's MAMR plates may very well be based mostly on the corporate's newest aluminum substrates, which right this moment permits the development of zero.635 mm thick PMR media (remember that this isn’t official affirmation is, however relatively an informed guess.
As a supplier of exhausting disk drives, Showa Denko, in fact, provides no particulars on Toshiba's nine-disk 18-TB disks. Though an elevated floor density inevitably improves its most sustained switch charge over current 7200 RPM exhausting drives, its IOPS efficiency per terabyte stays to be seen. If the HDD platform continues to make use of an actuator, Toshiba should scale up its firmware to ship the IOPS per terabyte that prospects want (learn extra about this right here )
Showa Denko additionally stated that along with its MAMR media, it's on monitor to ship HAMR-based data when their time comes. Sadly, there was not the precise timetable for HAMR boards, simply assuring buyers that Tech was on the way in which to commercialization.
Supply: Showa Denko