3 people have 6x16TB, 96TB each, total raw storage is 288TB across 18 disks
| Configuration | Usable storage | Resilience |
|---|---|---|
| Each person does RAID-6 The same data is stored by all people |
4x16TB = 64TB | Any 7 disks can be lost (worst case 2 people lose 3 disks each and lose the RAID, third person loses 2 disks and can still recover). If we're lucky, max 14 disks can be lost (two people lose all 6 disks, third person loses 2 disks). Any person has all data locally without needing other nodes. |
| Each person does RAID-5 The same data is stored by all people |
5x16TB = 80TB | Any 5 disks can be lost (worst case 2 people lose 2 disks each and lose the RAID, third person loses 1 disk and can still recover). If we're lucky, max 13 disks can be lost (two people lose all 6 disks, third person loses 1 disk). Any person has all data locally without needing other nodes. |
| Spread files across all disks/people Use 6-of-18 parity |
6x16TB = 96TB | Any 12 disks can be lost, but not more. Any person can recreate all data locally without needing other nodes, as long as they don't lose any disk. |
| Spread files across all disks/people Use 12-of-18 parity |
12x16TB = 192TB | Any 6 disks can be lost, but not more. |