I am the President of Coughlin Associates and a storage analyst and consultant. I have over 40 years in the data storage industry with multiple engineering and management positions. I have many publications and six patents to my credit.
For several years I have written a series of articles outlining my projections for various digital storage and non-volatile memory technologies for the coming year and beyond. This will be the first of my projection articles for 2025, focusing on magnetic recording technology, particularly hard disk drive s and magnetic tape.
Results for the final quarter of 2024 have not been announced, but my estimates project that overall HDD unit shipments in 2024 will be about 2% higher than in 2023, at about 124M units, the first year over year shipment growth since 2010, although starting from a low number from the 2022-2023 storage recession. HDD capacity shipments are estimated to increase about 39% from 2023 to 2024, to 1.2 ZB, and gross HDD revenues may increase by about 45%, to $19.5B, in 2024 compared to 2023.
Increasing storage capacity per drive results in lower prices per bit of data . For high-capacity enterprise and data center HDDs, helium sealed drives with more disks allows higher capacities. Currently these drives are available with up to 11 disks . More disks may be possible, maybe even up to 12 disks, but this would require moving these drives to thinner glass substrates which would be stiffer than aluminum substrates as well as changes to the magnetic head height and the head suspensions.
WDC is currently using what they call ePMR, which stabilizes the written bits and which they call a form of energy assisted recording. This is used in their latest nearline HDDs, including the 11-disk products, which combined with their OptiNAND technology and SMR, can achieve 32TB capacities. Toshiba says that they are using a form of micro-wave assisted magnetic recording, MAMR, in their high -apacity HDDs but that future 30+TBHDDs will include heat assisted magnetic recording, HAMR, as well.
Seagate and WDC have shipped some dual actuator HDDs in the past few years, but this technology hasn’t taken off. It is expected that these dual actuator HDDs will become standard fare on higher capacity HDDs, such as for 40TB and higher HDDs, since they can increase performance and, more importantly, increase rebuild time for failed drives.
In August of 2023 IBM announced its TS1170 magnetic tape drive, supporting storage capacities up to 50TB native and higher capacities with compression. The product has a native data rate of 400 MB/s and has 12Gb SAS and 16Gb Fibre Channel interface options. These drives support new tape cartridge media using Strontium Ferrite magnetic particles. The JF media is produced by Fuji Film, who also makes LTO media. This 50TB tape cartridge technology was a 2.
Hard Disk Drive 2025 Hamr Mamr Lto Ibm Seagate Wdc Toshiba
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