HGST Deskstar NAS 4 TB Reviewby Ganesh T S on November 22, 2014 2:00 PM EST
Specifications and Feature Set Comparison
Prior to getting into the performance evaluation, we will take a look at the specifications of the 4 HGST Deskstar NAS and see how it compares against the other NAS-specific hard drives that we have looked at before.
Unlike other consumer NAS HDDs, the HGST Deskstar NAS doesn't skimp on performance by lowering the rotational speeds. We have a standard 7200 rpm drive with a SATA 6 Gbps interface. There is a 64 MB cache, but the reliability ratings in terms of MTBF and UREs are the same as the other consumer NAS drives. The 4 TB version is a 5-platter design with 800 GB/platter. Warranty period (3 years) and other aspects closely track the other consumer NAS drives that we have evaluated before. 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||64 MB||64 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)||N/A||N/A|
|Physical Parameters||14.7 x 10.16 x 2.61 cm; 690 g||14.7 x 10.16 x 2.61 cm; 690 g|
|Warranty||3 years||3 years|
|Price (in USD, as-on-date)||$185||$185|
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). Readers interested in understanding what each of these features mean to the end-user can refer to our earlier coverage of NAS drives.
|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||Not Supported||Not Supported|
|Software Settings Preservation||Supported; Enabled||Supported; Enabled|
|Streaming||Supported; Disabled||Supported; Disabled|
|Tagged Command Queuing||Not Supported||Not Supported|