HGST Deskstar NAS 6 TB Reviewby Ganesh T S on December 23, 2014 11:00 AM EST
Specifications and Feature Set Comparison
Prior to getting into the performance evaluation, we will take a look at the specifications of the 6 TB HGST Deskstar NAS and see how it compares against the other NAS-specific hard drives that we have looked at before.
The Deskstar NAS sports a SATA III (6 Gbps) interface. As is customary for the high capacity drives in this market segment, it can only emulate 512-byte sectors (natively 4K). The interesting aspect is the presence of a 128 MB cache similar to the Seagate drives, and unlike the WD Red. The obvious selling point for its price target is the 7200 RPM speed, which should easily give it the lead in most benchmarks over the WD Red. The other aspects (such as the URE ratings, MTBF, warranty etc.) are as expected. The table below presents the data for the drive against the others in our evaluation database.
|Comparative HDD Specifications|
|Interface||SATA 6 Gbps||SATA 6 Gbps|
|Sector Size / AF||512E||512E|
|Rotational Speed||7200 RPM||7200 RPM|
|Cache||128 MB||128 MB|
|Rated Load / Unload Cycles||600 K||600 K|
|Non-Recoverable Read Errors / Bits Read||< 1 in 1014||< 1 in 1014|
|MTBF||1 M||1 M|
|Operating Temperature Range||5 to 60 C||5 to 60 C|
|Acoustics (Seek Average - dBA)||29 dBA||29 dBA|
|Physical Parameters||14.7 x 10.16 x 2.61 cm; 715 g||14.7 x 10.16 x 2.61 cm; 715 g|
|Warranty||3 years||3 years|
|Price (in USD, as-on-date)||$300||$300|
A high level overview of the various supported SATA features is provided by HD Tune Pro.
We get a better idea of the supported features using FinalWire's AIDA64 system report. The table below summarizes the extra information generated by AIDA64 (that is not already provided by HD Tune Pro).
|Comparative HDD Features|
|DMA Setup Auto-Activate||Supported; Disabled||Supported; Disabled|
|Extended Power Conditions||Supported; Enabled||Supported; Enabled|
|Free-Fall Control||Not Supported||Not Supported|
|General Purpose Logging||Supported; Enabled||Supported; Enabled|
|In-Order Data Delivery||Supported; Disabled||Supported; Disabled|
|NCQ Priority Information||Supported||Supported|
|Phy Event Counters||Supported||Supported|
|Release Interrupt||Not Supported||Not Supported|
|Sense Data Reporting||Supported; Disabled||Supported; Disabled|
|Software Settings Preservation||Supported; Enabled||Supported; Enabled|
|Streaming||Supported; Enabled||Supported; Enabled|
|Tagged Command Queuing||Not Supported||Not Supported|
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Laststop311 - Thursday, December 25, 2014 - linkPrice/reliability/performance I think this is the best series of drives to purchase.
akula2 - Saturday, January 3, 2015 - linkYou're absolutely correct. I own many Hitachi drives compared to WD and Seagate models.
realwarder - Friday, December 26, 2014 - linkI purchased two of these and put them in a Dell server as RAID drives. It was curious to read about the Qnap IO error as the drives failed to operate correctly in the server to start with - when on SATA channel 2/3 they always got an IO error during the boot which caused Windows Storage Spaces to reject the drives. On moving to channel 0/1 they show no I/O error at boot and work fine.
Once working, they appear ok if not a little noisy. Run 4 degrees warmer than the boot drive too.
Only time will tell how they work out, but it's a lot of fast space which is what I was after - just look a lot of pain to get working due to the IO error causing the drive rejection.
StevieBee - Friday, December 26, 2014 - linkSome advice please folks.. I have 2x8 bay synology drives ( 1815+) which i use for SOHO file backup and some media on a very small network of 3 users. At the moment i have 5 3TB WD reds in each and i want to add another 3 drives to each.
My question is what are the best drives to add to the array? Reliability is more an issue than cost.
I was at first thinking about WD red Pro, but i am worried that the higher speed than my existing reds would cause a problem...Will it?
The other alternative would be to make one unit all the new deckstars with the higher speed, and then use the old WD reds to increase the other unit.
Any advice would be greatly appreciated.
intiims - Friday, December 26, 2014 - linkGreat review from a great site. Nice Products Spec tables, very usefull and easy to understand.
Guspaz: I think little and fast SDD drives are much better than big and slow, by the way, who can fill up 8TB ? I have never ever got more than 1TB. Even with a lot of movies and photos..
I found i nice site witth great reviews:
akula2 - Saturday, January 3, 2015 - link@However, the HGST Deskstar NAS drives have a 7200 RPM rating and the 5 / 6 TB variants come with 128 MB of DRAM cache. This is expected to make them perform closer to the Seagate Enterprise Capacity v4 and Enterprise NAS HDD drives.
Ganesh, that's a wrong comparison. Deskstar HDDs are targeted at Consumer or SOHO or even SMB segment. Why? Because it gets quite easy to go for RAID by adding a few HDDs in the Cases. Rest is all known.
If folks (like me) looking for Enterprise-grade drives, go for Hitachi's SAS 12 GB/s HDDs to get very high performance and ultra reliability. One can even choose SATA III HDD drives too. Most important is to know when to use those models. E.g.,
a) Hitachi Ultrastar 7K6000 SAS 12Gb/s - 6 TB, 7200, 128 MB HDD
b) Hitachi Ultrastar 7K6000 SATA 6Gb/s - 6 TB, 7200, 128 MB HDD
c) Hitachi Deskstar NAS SATA 6Gb/s - 6 TB, 7200, 128 MB HDD
Those three drives may look more or less same, but they aren't!