Overview
- Initial 44TB shipments are going to one leading hyperscale cloud provider, marking commercial rollout of Seagate’s latest HAMR generation.
- Seagate says its 4+ TB‑per‑disk HAMR drives are qualified and in production at two major hyperscale data center companies.
- Mozaic 4+ uses 10 platters delivering 4TB per disk with CMR and up to 4.4TB per disk with SMR, reaching about 2.5 Tbpsi areal density.
- The HAMR write laser is now integrated into the head slider to strengthen yield, reliability, and supply chain resilience.
- Company slides claim about a 47% TCO improvement versus prior 3+ TB‑per‑disk HAMR drives, with a roadmap targeting 5+ TB per disk by 2028 and 10+ TB by 2032.