Those that are concerned with data integrity have likely heard of RAID 1, mirroring. It’s generally slower as the data needs to be written onto both disks. With RAID5 you get the advantage of speed and redundancy. Total storage is the combined total number of all disks minus one as redundancy where parity is distributed over all disks in the array. RAID 5 is perhaps the cheapest way to boost hard disk performance while keeping data safe.

We don’t see much of a hit relative to the performance of JBOD and RAID 0 when it comes to the reader results. The average remains at 34.4MB/s which is only 0.1MB/s slower than the RAID 0. The same applies with the re-reader results:

Amazingly the average writer result increased by 2MB/s but we do see a 5MB/s drop in performance of the Re-Writer compared to RAID 0. The exact averages are 35MB/s on writer and 90.6MB/s on Re-writer. I’m almost led to believe the dedicated processor and data management system is so powerful that the results are hardly affected. If you’re looking for any sense of security without compromising data integrity the RAID 5 solution is definitely one of your best bets with the TS-809 Pro Turbo NAS.

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