Multiple drives of a lower (1-2tb) capacity might be more expensive, but they’d technically be more resistant to a single failure over fewer larger (4tb+) drives when in a pool/array.
Multiple drives of a lower (1-2tb) capacity might be more expensive, but they’d technically be more resistant to a single failure over fewer larger (4tb+) drives when in a pool/array.
Get them as big as possible (wallet allows to), because you’ll get quickly annoyed at having multiple smaller drives. You’ll have to deal with more space, more cables, more power, more sata expansion, more heat etc.
And more chances of failure. The benefit is less time to repair a RAID set