From Newsgroup: comp.sys.ibm.pc.hardware.storage

"Seagate unveils 30TB HAMR HDDs for the masses — laser-powered IronWolf
Pro and Exos drives are now widely available"

https://www.tomshardware.com/pc-components/hdds/seagate-unveils-30tb-hdds-for-the-masses-laser-powered-hamr-drives-are-now-widely-available

"Today, Seagate introduced its Exos M 30TB and IronWolf Pro 30TB hard
disk drives (HDDs), which utilize heat-assisted magnetic recording
technology. This technology employs a laser to increase storage density.
This is the first time Seagate has made HAMR HDDs based on its Mozaic 3+ technology available to the mass market, marking a significant milestone
for both the company and the storage industry, which unleashes an unprecedented amount of storage density."

"To enable high-density writing, the drives are equipped with a
specialized plasmonic writer subsystem featuring a vertically integrated nanophotonic laser. This laser heats a small spot on the FePT recording
layer on the disk to approximately 450°C (842°F), altering its magnetic coercivity and allowing data to be recorded on the heated spot. Reading
is handled by heads that use Gen 7 Spintronic Reader, which features
multiple reading sensors to help mitigate signal interference between
adjacent tracks, ensuring data can be read accurately even at very high
track densities."

"Seagate's 30TB and 28TB versions of the Exos M and IronWolf Pro hard
drives are now officially available globally through the Seagate online
store and through the company’s network of approved resellers and distribution partners. The listed retail prices are $599.99 for both the
Exos M 30TB and IronWolf Pro 30TB models, and $569.99 for the 28TB
variants of each drive."

I suspect that the new QLC SSD drives will displace these soon.

Lynn

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