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Review Summary
Requires exactly 2 drives (HDD or SSD)
50%. You lose half of the total combined raw capacity for mirroring.
Can withstand the failure of one disk without losing data
Exclusively uses ZFS for advanced data protection like inline deduplication and compression
Supports extremely large individual shared folders (up to 5 PB)
You can upgrade a RAID 1 group by replacing both disks with higher-capacity ones.
Supports online migration from RAID 1 to higher levels like RAID 5 or Triple Mirror (by adding one more disk)
Typically configured through the Storage & Snapshots menu in the QuTS hero web interface
The QNAP QUTS-RAID1 is a professional configuration service or license for setting up a RAID 1 array on QNAP NAS devices running the QuTS hero operating system. QuTS hero is a 128-bit ZFS-based OS designed for high data integrity and performance.