Seagate 4TB NAS HDD $150 - TD

[Olivas]

Tiger Direct has the 4TB Seagate NAS drives for $180 - $30 = $150 w/ FS. $30 off coupon good till 3/18.

In the $180 - $190 range else where. Picked up a couple of these around BF, been running them in a RAID 5 array for the past couple months with no problems so far. Thinking about picking up a another at this price just to have on hand.

http://www.tigerdirect.com/applicati...98960&csid=_23

 

[SunRey]

Thank You!

 

[mcginnis]

Damn sweet deal, may have to hop on it.

 

[brocks]

Will those work as a normal desktop internal drive? I realize I'd have to format it as GPT, but I could use a big, cheap data drive.

 

[IndyColtsFan]

Yes, those will work in a normal desktop. I have one of WD's NAS drives in my system to use for temporary storage for video work, and it works fine.

 

[Centauri]

What differentiates this from the non-NAS 4TB version?

 

[IndyColtsFan]

What differentiates this from the non-NAS 4TB version?

I believe the non-NAS variety is a 7200 RPM drive and this version is a 5900 RPM drive. There are probably some other firmware differences as well.

 

[Centauri]

They're actually both 5900 RPM.

 

[IndyColtsFan]

They're actually both 5900 RPM.

Oops, you're right. I have four of these in my NAS:

http://www.amazon.com/Seagate-Deskto...s=seagate+4+tb

They're the non-NAS variety but seem to work fine in the NAS.

 

[Khato]

What differentiates this from the non-NAS 4TB version?

No idea what other differences there might be - only one I'd care about is that the NAS version comes with a 3 year warranty while the non-NAS is only 2 year.

 

[stlc8tr]

NAS drives also have a higher rated workload. I think the NAS version is ~180TB/year while the non-NAS version is something like ~65TB/year.

 

[brocks]

NAS drives also have a higher rated workload. I think the NAS version is ~180GB/year while the non-NAS version is something like ~65GB/year.

Sorry, please remedy my ignorance and tell me what that means. 180GB doesn't sound like much of anything in the context of a 4TB drive.

 

[Elixer]

Sorry, please remedy my ignorance and tell me what that means. 180GB doesn't sound like much of anything in the context of a 4TB drive.

Those numbers he lists are way off.
This is direct from seagate's white paper

2.12 Reliability - Mean Time Between Failure
The product will achieve a Mean Time Between Failure Rate (MTBF) of 1,000,000 hours when operated in an
environment of ambient air temperatures of 25°C. Operation at temperatures outside the specifications shown in
Section
2.9
may increase the product MTBF. MTBF is a population statistic that is not relevant to individual units.
• MTBF specifications are based on the following assumptions for NAS environments:
• 8760 power-on hours per year
• 10,000 average motor start/stop cycles per year
• Operations at nominal voltages
• Temperatures outside the specifications in
Section 2.9
may reduce the product reliability.
Operation at excessive I/O duty cycle may degrade product reliability. The NAS environment of power-on hours,
temperature, and I/O duty cycle affect the product MTBF. The MTBF will be degraded if used in an enterprise
application.

 

[stlc8tr]

Sorry, please remedy my ignorance and tell me what that means. 180GB doesn't sound like much of anything in the context of a 4TB drive.

Sorry. Typo. I'll fix. I meant 180TB. That's the figure that AnandTech used in their review. Though there was a "?" next to it in the chart. Ganesh was probably a bit optimistic as I wasn't able to find anything to verify his numbers. The ST4000NC000 is only rated at 180TB so I'm guessing the ST4000VN000 is actually a bit lower.

http://www.anandtech.com/show/7258/...s-drives-wd-red-and-seagate-nas-hdd-faceoff/2

The non-NAS figure is actually 55TB. Taken from Seagate's PDF (page 12).

http://www.seagate.com/staticfiles/support/docs/manual/desktop/Desktop%20HDD%20Gen%2015/100710254-rev-c.pdf

Average rate of <55TB/year. The MTBF specification for the drive assumes the
I/O workload does not exceed the average annualized workload rate limit of
55TB/year. Workloads exceeding the annualized rate may degrade the drive
MTBF and impact product reliability. The average annualized workload rate limit
is in units of TB per year, or TB per 8760 power-on hours. Workload rate
limit = TB transferred × (8760/recorded power-on hours).