Side-by-side spec and price comparison. Live data from Amazon US.
Quantum LTO-9 Ultrium 20-Pack 18TB offers the best value at $5.31/TB. Available new with manufacturer warranty.
Quantum LTO-9 offers better value at $5.31/TB vs $5.50/TB - a 3% price difference. Factor in warranty length and workload rating when the price gap is small.
Mixing drives of different models in RAID is not recommended even if capacities match. Different firmware, error handling and seek patterns can cause rebuild issues. Use identical drives within the same RAID group for reliable operation.
Quantum LTO-9 carries a longer 2-year warranty vs unknown years for HPE LTO-9. Both are enterprise-grade drives built for 24/7 operation.
HPE LTO-9 is the better fit for NAS storage.