Seagate HAMR technology roadmap and capacity expansion
The developments in this story so far, most recent first.
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Development
HAMR-Festplatten: Seagate verspricht 50 TByte im nächsten Jahr
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· date approximate Background
Mozaic 4 drives have seen volume shipments since March 2026.
Following the qualification of Mozaic 3 products by major cloud customers, the Mozaic 4 platform entered the market with volume shipments starting in March 2026.
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· date approximate Background
Only two major cloud providers had qualified Mozaic 4 hard drives.
No separate article for this desk or language yet.
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· date approximate Background
Only five major cloud customers had qualified Mozaic 3 products.
By the end of 2025, only five major cloud customers had qualified Mozaic 3 products. This first generation of HAMR drives consisted of 3.5-inch HDDs with capacities of 30 TB and above.
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· date approximate Background
Seagate reached a capacity of 6.9 TByte per platter in its laboratories.
By the end of 2025, Seagate announced that it had reached a capacity of 6.9 TByte per platter within its laboratory environments.
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· date approximate Background
Seagate announced the manufacture of a prototype platter with approximately 6.5 TByte capacity.
Last year, Seagate announced that it had successfully manufactured a prototype platter with a capacity of approximately 6.5 TByte.