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WD SE WD4000F9YZ 4TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Enterprise Hard Drive

  • Optimal storage for NAS and scale-out architectures
  • Cost-effective
  • 24x7x365 reliability
  • 5-year limited warranty
BUY WITH CONFIDENCE
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
BUY WITH CONFIDENCE
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
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BUY WITH CONFIDENCE
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
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Learn more about the Western Digital WD4000F9YZ

Quick Info

Warranty

  • Limited Warranty period (parts): 5 years
  • Limited Warranty period (labor): 5 years


Customer Reviews of the Western Digital WD4000F9YZ

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Showing 45 of 45 reviews - Clear Filters

  • Brett H.
  • 4/23/2015 11:00:28 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

1 out of 5 eggsBad sectors everywhere

This review is from: WD SE WD4000F9YZ 4TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Enterprise Hard Drive

Pros: 4TB

Cons: 2/4 drives had bad sectors in three days.

Other Thoughts: I wouldn't buy these. Western Digital warranty support is painful, and I don't like that I need to pay shipping to get my defective hardware replaced.

Did you find this review helpful? Yes No

  • JAMIE W.
  • 4/14/2015 11:02:42 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year

4 out of 5 eggsWorks, but one DOA?

This review is from: WD SE WD4000F9YZ 4TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Enterprise Hard Drive

Pros: Using five 4TB's inside Synology DS1513+ in RAID 6 for business use. My performance has been good so far. After over 2333 hours of usage, still no errors reported through extended SMART tests.

Tested: Two USB and one ethernet simultaneous file reads and writes. The NAS is performing at over 200 MB/s for both read and write.

Cons: Received one DOA. Also, we had to pay to ship the drive to WD. However, it was replaced, which took about 10 days time. Honestly, this is the first DOA I've ever received (and I've been ordering drives for many years). All drives were packed together, so it have been something with that particular drive.

Other Thoughts: Honestly, compare prices. For a NAS, the Red's had been good for us and lasted years without problems. We chose this drive for the comparable pricing, long warranty, and the construction/vibration technology for our site.

Did you find this review helpful? Yes No

  • Pascal M.
  • 3/11/2015 5:36:11 PM
  • Tech Level: High
  • Ownership: less than 1 day

3 out of 5 eggsEnterprise only if you can't divide by 10

This review is from: WD SE WD4000F9YZ 4TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Enterprise Hard Drive

Pros: cheap for an enterprise drive, which it's not

Cons: Specifications state 10 in 10^15 URE. That's 1 in 10^14, so it's really a consumer-level drive, not an enterprise drive, which are recognizable with UREs of 1 in 10^15 or better. Are they targetting the math illiterate?

1 out of 1 people found this review helpful. Did you? Yes No

  • Anonymous
  • 11/13/2014 5:50:08 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsgreat drives

This review is from: WD SE WD4000F9YZ 4TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Enterprise Hard Drive

Pros: These drives have proven extremely reliable. I bought 5 at once. Not one DOA. The run a little warmer than 1TB RE drives I upgraded from, but just a couple degrees. I have 4 in raid5 setup. I always keep an extra drive as a cold spare. I had one drive die a few months ago and I was glad I had the spare handy. My replacement was at my door step in about 10 days. This is why I buy enterprise drives. WD seems to handle the warranties much quicker.

Cons: Price

Other Thoughts: Even with a cold spare on hand running drives of this capacity in raid5 is risky business. It took 19 hours to rebuild the array and luckily no other drive failed.

2 out of 2 people found this review helpful. Did you? Yes No

  • Toby B.
  • 9/7/2014 6:47:35 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsGood balance of Price and Perf

This review is from: WD SE WD4000F9YZ 4TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Enterprise Hard Drive

Pros: Great to have 5yr Warranty, good capacity and reasonable performance

Cons: None

Other Thoughts: The Re is great but I'm not hammering the drive with a lot of storage request so this seemed better balance. the Red Pro seems like it's a bit quicker.

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  • Jean S.
  • 7/20/2014 1:51:23 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGreat Hard disks for NAS

This review is from: WD SE WD4000F9YZ 4TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Enterprise Hard Drive

Pros: Bought 5 of those for a QNAP TS-670 Pro. They look reliable, are fast (I made a RAID 10 setup with hot spare) and I cannot see any issue with those.

Cons: Not anymore used to hear disks spinning since I use SSD, but they aren't that bad :P

Did you find this review helpful? Yes No

  • Tom Y.
  • 7/8/2014 12:26:11 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsNAS drive

This review is from: WD SE WD4000F9YZ 4TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Enterprise Hard Drive

Pros: for a DS412+ synology.
works perfectly no hiccups.
I never really understood the difference between the enterprise line and the regular line (really--but do understand the concept).

Cons: price

Did you find this review helpful? Yes No

  • Marc H.
  • 6/8/2014 11:57:25 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsHard Drive is Great, Newegg Isn't!

This review is from: WD SE WD4000F9YZ 4TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Enterprise Hard Drive

Pros: Has worked reliably from day 1.

Cons: None to speak of.

Other Thoughts: A great hard drive but I will buy all my electronics from other than Newegg in the future. Why? Because they won't advocate for their customers (I've been a regular for many years) if the manufacturer refuses to honor the manufacturer warranty. Clearly Newegg has some clout with their suppliers, but they won't intervene. So I'm left with a (different product, not this drive) $46 piece of worthless equipment because neither the manufacturer nor Newegg will help. Newegg even wrongly claims there's no manufacturer's warranty (I have the card to prove there IS). I highly recommend buying this drive ELSEWHERE!

5 out of 9 people found this review helpful. Did you? Yes No

  • Joseph M.
  • 5/9/2014 9:47:09 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsGreat

This review is from: WD SE WD4000F9YZ 4TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Enterprise Hard Drive

Pros: Large capacity, good price, 6/6 arrived working perfectly,
NAS compatible

Cons: None

Other Thoughts: Seems that the shipping method Newegg uses with smaller numbers of drives is not working, my last order of 2 WD Red drives had 1 DOA, then the replacement was also DOA, and finally the third time got a second working one. However when I ordered 6 of these together a completely different method of packing was used and all 6 worked perfectly off the bat.

3 out of 5 people found this review helpful. Did you? Yes No

  • ARTHUR M.
  • 3/31/2014 11:23:00 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

1 out of 5 eggsstarted failing after 1 month of light use

This review is from: WD SE WD4000F9YZ 4TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Enterprise Hard Drive

Pros: 5 year warranty.

Cons: Failed only after a month of light use. Bad sectors galore = major quality control issues. If the drive is advertised as enterprise use, 24x7x365 reliability and rigorously tested etc., failures should be unacceptable within at least 2-3 years of use, even with a good warranty. It is the most important thing to have confidence in your storage media...I hope that this is just a bad batch.

I'd rather have a DOA drive than one that I stored important data then dies after a month of light use (with data lost). Oh, and DATA RECOVERY for a 4TB drive is SUPER EXPENSIVE, so that doesn't make things any easier.

Manufacturer Response:

Hello there, we are very sorry to hear that your drive did not function so soon after it was delivered. Our drives are rigorously tested to ensure they are in good working condition before they leave our warehouses. We understand your situation and will gladly replace your in-warranty drive, as we stand by our products and their associated warranties. Our goal is to provide world class customer service, and part of that goal in this situation would be to replace your drive, and investigate the root cause for the drive’s premature failure.

How to get an RMA (Return Merchandise Authorization) or replace a defective product under warranty
http://wdc.custhelp.com/app/answers/detail/a_id/8

For additional assistance, please contact us at (800) 275-4932, or via our support website at: http://support.wdc.com/rs

3 out of 4 people found this review helpful. Did you? Yes No

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