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Western Digital Red 6TB NAS HDD RAID Report - Benchmarks - 4K Random Performance & Latency

By: Tyler Bernath | RAID in Storage | Posted: Aug 19, 2014 2:12 pm

IOMeter - 4K Random Performance with QD




In random read, we found the drives to scale quite well in RAID 0. On the other hand, RAID 5 performance was similar to our three-drive RAID 0, and RAID 10 topped the charts at 301 IOPS.




Random write again scaled quite well within RAID 0, while RAID 5 performance was lower than a single drive, and RAID 10 was equal to a dual-drive RAID 0 array.




Read latency for the single drive came in at 405ms at QD32, while adding another drive for a RAID 0 array halved the response time down to 215ms. RAID 5 and 10 came in at 152ms and 105ms, respectively.




Write latency for the RAID 5 array came in at 219ms at QD32. On the other hand, we found the four-drive RAID 0 to be the quickest at 23ms, and the RAID 10 array landed at 42ms at QD32.

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