Arduous disk drives, HDDs, retailer over 80% of the world’s knowledge and can proceed to be an economical useful resource for knowledge retention into the subsequent decade. HDDs are sometimes used as secondary cheaper storage behind SSDs as main storage for AI and different knowledge intensive workloads. This week we noticed a few attention-grabbing bulletins on HDDs from Western Digital and Toshiba, who, together with Seagate Know-how, manufacture the world’s HDDs.
Western Digital announced its expanded System Integration and Check (SIT) Lab, a state-of-the-art 25,600 sq. foot facility in Rochester, MN. The Rochester facility contains expanded areas for testing, labs and devoted buyer areas. The ability is geared for sooner, extra predictable qualification of Western Digital’s high-capacity HDDs for knowledge facilities and enterprise prospects.
In keeping with WDC, along with offering analysis, growth and international operations, the power’s mini knowledge middle atmosphere allows real-world testing and validation, making certain prospects obtain superior storage options exactly after they want them. The SIT Lab serves as a large, devoted collaboration hub the place the corporate’s engineers work alongside key prospects all through each stage of the product lifecycle, together with growth, qualification, manufacturing ramp and end-of-life.
Toshiba announced a prototype of a 12-disk high HDD in the usual 3.5-inch laborious drive type issue. Toshiba expects that this new HDD configuration will allow 40+TB HDDs for the information middle market utilizing the corporate’s Microwave Assisted Magnetic Recording, MAMR, a kind of power assisted magnetic recording, by 2027. Toshiba makes 18-20% of the worlds HDDs, with Seagate Know-how and Western Digital roughly splitting the remainder of the HDD market.
The corporate stated that key advances embody the event of recent devoted elements within the stack, and substitute of the present aluminum substrate medium with a glass substrate that provides higher sturdiness and permits thinner designs. These advances ship improved mechanical stability and in-plane accuracy, greater density and higher reliability. Toshiba can also be investigating using 12-disk stacking know-how with next-generation Warmth Assisted Magnetic Recording (HAMR).
Toshiba doesn’t have its personal laborious disk drive heads of disk manufacturing, not like Seagate and Western Digital. It buys from some exterior Japanese suppliers. The skinny glass substrates used for this demonstration and enabling a 12-high disk within the 3.5-inch HDD type issue, seemingly got here from Hoya. Toshiba’s disks are made by Resonac and its magnetic recording heads are made by TDK.
On the 2022 IEEE TMRC conference Hoya was exhibiting prototype 14 and even 24 disk configurations for HDDs utilizing their glass substrates. Hoya is the biggest producer of glass substrates for laborious disk drives. Glass substrates are required for HAMR recording media due to the upper temperatures throughout media deposition.
Western Digital launched an 11-disk HDD in 2024 with 32TB utilizing its ePMR and shingled magnetic recording, SMR. Seagate has been delivery 32TB HDDs with 10 disks utilizing warmth assisted magnetic recording, HAMR, in late 2024 as properly.
Western Digital introduced the opening of a take a look at lab for qualification of HDDs for knowledge facilities. Toshiba introduces a 12-disk HDD platform for 40+TB HDDs by 2027.

