NAS pSEO Landing
Brand Focus · QNAP
Compare usable TB, parity, and failure tolerance between RAID 1 and RAID 5 for QNAP NAS users.
This page compares RAID 1 and RAID 5 on identical hardware assumptions to help homelab builders choose between capacity efficiency and fault tolerance.
| Drives | RAID 1 | RAID 5 | Delta |
|---|---|---|---|
| 4x 8TB | 7.20 TB | 21.60 TB | -14.40 TB |
| 6x 8TB | 7.20 TB | 36.00 TB | -28.80 TB |
| 8x 8TB | 7.20 TB | 50.40 TB | -43.20 TB |
| 10x 8TB | 7.20 TB | 64.80 TB | -57.60 TB |
| 12x 8TB | 7.20 TB | 79.20 TB | -72.00 TB |
QNAP buyers often compare capacity efficiency against service consolidation needs, where VM storage, containers, and media serving all compete for IOPS and free space.
QNAP auto-tiering system that moves hot and cold data across storage classes.
QTS module for RAID pool management, volume control, and snapshots.
Allocates logical space first and consumes physical capacity over time.
For QNAP users, this NAS planning scenario compares both modes at fixed drive sizes so you can see usable capacity differences before buying disks.
Rebuild behavior depends on array width, disk size, and workload pressure. This page focuses on capacity and tolerance; benchmark your actual platform before final choice.
Yes. Similar usable TB does not imply similar failure tolerance or rebuild exposure. Capacity and resiliency should be evaluated together.
The better option is the one that keeps acceptable usable capacity while preserving safety margins during future disk expansions.