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Review Summary
Requires at least 4 drives
Total capacity is roughly (N - 2) - smallest drive size, where N is the number of drives.
Supports groups of up to 16 drives
Offers high read performance but involves a write penalty due to calculating double parity
Specifically for QuTS hero (often requires 8GB-16GB+ RAM for features like deduplication)
The QNAP QUTS-RAID6 is a professional configuration service for setting up a RAID 6 array on QNAP NAS devices utilizing the QuTS hero (ZFS-based) operating system. Like the RAID 1 service, this is typically a "bare" service provided by retailers to pre-configure your NAS hardware for high-level data protection.