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24TB drives are quite available, $300 on newegg. Buy a Data60 (60 disk chassis), add 60 drives. Buy a 1U server (2 for redundancy). I'd recommend 5 stripes o
by sliken 1y ago
24TB drives are quite available, $300 on newegg.
Buy a Data60 (60 disk chassis), add 60 drives. Buy a 1U server (2 for redundancy). I'd recommend 5 stripes of 11 drives (55 total) with 5 global spares. Use a RAIDz3 so 8 disks of data per 11 drives.
Total storage should be around 8 * 24 * 5 = 960GB, likely 10% less because of marketing 10^9 bytes instead of 2^30 for drive sizes. Another 10% because ZFS doesn't like to get very full. So something like 777TB usable which easily fits 650TB.
I'd recommend a pair of 2TB NVMe with a high DWPD as a cache.
The disks will cost $18k, the data60 is 4U, and a server to connect it is 1U. If you want more space upgrade to 30TB $550 each) drives or buy another Data60 full of drives.
- metadat 1y agoThere are also enterprise SSDs in existence now which pack more than 200TB into a single NVMe drive. $$$$$, though (for the foreseeable future?) Kioxia LC9 SSD Hits 245.76TB of Capacity in a Single Drive - https://news.ycombinator.com/item?id=44643038 https://news.ycombinator.com/item?id=44643038 (22 days ago, 7 comments) -> https://www.servethehome.com/kioxia-lc9-ssd-hits-245-76tb-of-capacity-in-a-single-drive/ https://www.servethehome.com/kioxia-lc9-ssd-hits-245-76tb-of... SanDisk's "reply": Sandisk unveils 256 TB SSD for AI workloads, shipping in 2026 - https://news.ycombinator.com/item?id=44823148 https://news.ycombinator.com/item?id=44823148 (10 days ago, no discussion) -> https://blocksandfiles.com/2025/08/05/sandisk-pre-announces-256-tb-ssd/ https://blocksandfiles.com/2025/08/05/sandisk-pre-announces-...