TLDR
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Dell’s PowerEdge R7725xd fits 40x Kioxia LC9 245.76 TB QLC NVMe SSDs into 2RU, reaching 9.8 PB with 5x 400 Gbps NICs.
Key Takeaways
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Each Kioxia LC9 is an E3.L form factor NVMe SSD at 245.76 TB; 40 units populate a single 2RU AMD EPYC 9005 server.
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Network headroom: up to 5x 400 Gbps NICs to avoid the box becoming a throughput bottleneck at scale.
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Rack math: 20 of these servers yields 196 PB per rack, relevant for AI data lake and large backup workloads.
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Competing 256 TB-class SSDs: Micron 6600 ION, Sandisk UltraQLC SN670, SK Hynix AIN D, Solidigm; Samsung reportedly targeting a 1 PB nearline drive.
Hacker News Comment Review
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Commenters treat this as enterprise-tier hardware with no realistic near-term consumer path; secondary market availability is speculative.
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Enterprise NVMe SSDs are flagged as higher-wear consumables vs HDDs, meaning secondary market units arrive heavily used.
Notable Comments
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@tempest_: warns these drives will be “ridden hard and put away wet” before reaching the secondary market.
Original | Discuss on HN
