Benchmarks - 4 HDD / RAID 6
RAID 6: Extend RAID 5 by adding an additional parity block; thus it uses block-level striping with two parity blocks distributed across all member disks.
HD Video Playback
HD Video Play - 720p HD stream from Windows Media Player* 256kB reads
2HD Video Play - 2x playback
4HD Video Play - 4x playback
HD Video Record
HD Video Record - 720p HD stream, 256kB writes
HD Video Play & Record - 1 playback, 1 record simultaneously
2x HD Video Play & 2x Record - 2 playback, 2 record simultaneously
Photo Album - All reads - wide distribution of sizes
Office Productivity - Reads and writes, 1kB & 4kB reads; Mostly 1kB writes
Content Creation - 95% writes; 1k, 4k & little reads; Writes up to 64kB
File / Directory Transfer
Directory Copy From NAS - 64kB reads
Directory Copy To NAS - Predominantly 64kB writes, wide scattering under 16kB
File Copy From NAS - 4GB file copy, 64kB reads
File Copy To NAS - 64kB writes
Single Client Performance Wrap-up
While the QNAP TS-669L didn't win many of the single client performance tests, it still delivered solid performance. The tests we're most concerned with are RAID 5 and RAID 6.
Most users will run a redundant mode in their home or office. RAID 5 is the sweet spot for performance, but RAID 6 gives additional data redundancy, at the cost of usable capacity.
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