HD Tune Pro
Version and / or Patch Used: 4.00
Developer Homepage: http://www.efdsoftware.com
Product Homepage: http://www.hdtune.com
HD Tune is a Hard Disk utility which has the following functions:
Benchmark: measures the performance
Info: shows detailed information
Health: checks the health status by using SMART
Error Scan: scans the surface for errors
HD Tune Pro gives us accurate read, write and access time results and for the last couple of years has been gaining popularity amongst reviewers. It is now considered a must have application for storage device testing.
Going down the chart, we can see that the new PCIe 3.0 model is faster than the older PCIe 2.0 model when reading data sequentially across the array. Today we're testing in RAID 0, 5 and 6 with a stripe size in all three of 64, the ARC-1882i Version 3's default stripe size.
At this point, I should tell you that RAID 5 and RAID 6 are brutal on SSDs, RAID 6 more so than RAID 5. The drives take a beating when writing data and since we do not have TRIM on RAID 5 or 6 yet, you have to rely on background garbage collection to keep the drives running smoothly. While running benchmarks we do not have the privilege of long idle times for background garbage collection to take place and because of that, the arrays get "¬ėdirty' quickly.
That said, we could still look at the maximum and average write speeds and see that once again the increase in bandwidth to the controller card allows more performance to come from the SSDs. The bandwidth increase is what we are looking for here today and in the three tests we've conducted so far, we see the increase already.
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