WD Red Pro Review: 4 TB Drives for NAS Systems Benchmarked
by Ganesh T S on August 8, 2014 9:00 AM ESTPerformance - Raw Drives
Prior to evaluating the performance of the drives in a NAS environment, we wanted to check up on the best-case performance of the drives by connecting them directly to a SATA 6 Gbps port. Using HD Tune Pro 5.50, we ran a number of tests on the raw drives. The following screenshots present the results for the various drives in an easy-to-compare manner. Note that some of the screenshots are from the previous roundup where we used HD Tune Pro 5.0.
Sequential Reads:
Sequential Writes:
Random Reads:
Random Writes:
Miscellaneous Reads:
Miscellaneous Writes:
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dzezik - Friday, September 26, 2014 - link
that is why we do not use RAID but ZFS. think about itNavvie - Monday, August 18, 2014 - link
Thanks. Interesting read.colinstu - Saturday, August 9, 2014 - link
bought 4x 4TB SEs last year, at least I'm not missing out on anything!dzezik - Friday, September 26, 2014 - link
are you sure You still have Your data on the disk and not random zeros and ones. how can You be sure without daily scrubbing.HollyDOL - Monday, August 11, 2014 - link
Hi, are the bandwidths in graphs (page 5...) really supposed to be in Mbps (mega-bits per second)? Although it's correct bandwidth unit, the values seem to be really low (fastest tests would be about 30MB/s), the values provided I'd expect to be in MBps for the numbers to correspond...ganeshts - Monday, August 11, 2014 - link
Thanks for catching it. It is indeed MBps. I have fixed the issue.GrumpyOldCamel - Wednesday, August 13, 2014 - link
raid5, seriously?Why are you not focused on reliability, thankfully I see most of the other commentors are making similar points to mine, where did all the 10^16 and 10^17 drives go?
Why are we not exited about the newly leaked 10^18 drive?
When it comes to storage, you can keep size and you can keep speed, Im not interested.
I just want reliability.
Gear8 - Saturday, September 13, 2014 - link
Where measuring the heating ??? Where degrees Celsius ???dzezik - Friday, September 26, 2014 - link
Hey. This test setup is wrong. There is on SAS disk but there is no SAS HBA in the list of test setup. according to other tests benchamarks HGST SAS disk is the fastest from this list but it suffers because of poor or very poor controller. this comparison is worth nothing without good SAS HBA. and remember good HBA also increase SATA disk performance. embedded intel controllers are very simple and limited performance. good SAS HBA is about 150$ so it is not a big deal. regardsKingSmurf - Wednesday, October 22, 2014 - link
Just wondering this review states for the WD Se:Non-recoverable read errors per bits read < 1 in 10^14 and MTBF of 800k
while on WD's Specsheet it says for the Se:
Non-recoverable read errors per bits read < 1 in 10^15 and MTBF of 1 M (800k is the 1 TB only)
Did WD suddenly change the Spec Sheet - or was this review... let's say less than thorough?