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.
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.