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HGST MegaScale DC 4000.B HMS5C4040BLE640 (0F22146) 4TB 64MB Cache SATA 6.0Gb/s 3.5
  • Verified Owner
  • neweggOwned For: 1 week to 1 month

5 out of 5 eggs #1 rated most reliable disk of all time and best current refurb deal on newegg. 09/01/2016

This review is from: HGST MegaScale DC 4000.B HMS5C4040BLE640 (0F22146) 4TB 64MB Cache SATA 6.0Gb/s 3.5" Enterprise CoolSpin Hard Drive

Pros: Legendary HGST enterprise drive quality backed by real user experience in data centers.
Fresh, New current model and recent build dates. Mine is dated July 15 left the factory.
Very low power consumption half of the other HGST Enterprise drives
Of course zero bad blocks and no SMART errors at all
This particular model is the #1 related most reliable hard drive in Backblaze statistics. 0.0% annual fail rate for Q1 16, 0.4% AFR for Q2 16. This is data since April 2013 running 24 hours a day 7 days a week
As close to new as can possible: Mine only has 48 hours "power on time" when I got it.
Half the price of a new one
Fast: > 135 MByes/sec read AND write speed. Burst rate 165 MB/sec
Cool running 31 C not even warm to the touch
Dead silent no sound whatsoever

Cons: Slightly less fast than the 7200 RPM models 135 MB/sec vs 145 MB/sec a tradeoff for silence, cool running and low power
90 day warranty oh well it's a 'refurb'

Other Thoughts: Excellent buy half the price of a new one and mine had only 48 hours of use; including refurbishing/rezeroing time about half that. Most pristine refurbished hard drive I have ever seen.

This is a bare drive OEM drive. no cables no box, no screws. You probably knew that but I will mention it.

By the way I know the difference between a 'we zeroed out the SMART data to make a refurb appear new" versus the HDD actually has zero to a few dozen hours on it. Basic tools can be fooled but the self test logs never lie

Considering that is took more than 10 hours to check for disk errors and about 10 hours to low level format, about 1/2 of the 48 hours of one time would have been spent zeroing out the disk before selling to to me. So this disk as actually "used" for just 1 day

Backblaze tested almost 9,000 of this exact model running 24 hours a day 7 days a week since April 2013, and this HGST model I am reviewing has the lowest failure rate of any hard drive ever tested. 0.4% a year fail.
Compared to some of the 2 TB refurbs that are upward of 50-60 these days, this 4 TB and a brand new model with essential no hours on it for 99 is fantastic. Some of my 2 TB refurbs have 25,000-33,000 hours on them not 48 hours.

As with all new drives or refurbs I recommend HD Tune to scan each block of the hard drive for errors take over 10 hours, then a full not quick Windows format takes nearly the same time. After that each and every block of the hard drive has been exercised.

Highly recommend, get these while they last at this price. I bought 2 which meets my current needs.
UPDATE: I bought 2 more for a total of 4. The most recent purchase are from the same batch and both had just 49 power on hours, on them.


3 out of 5 eggs These are not Enterprise drives, but they are priced like one 09/01/2016

This review is from: WD Red Pro 4TB NAS Hard Disk Drive - 7200 RPM Class SATA 6Gb/s 64MB Cache 3.5 Inch - WD4001FFSX

Pros: WD is a good brand
Good warranty 5 years. Remember though a warranty is just an insurance policy not a guarantee, or a prediction of long life

Cons: Not even worth close to 259 in my opinion. The replacement model 4TB isn't either. These are enterprise prices for a "NAS" drive -- whatever that is. Network attached storage for a small business that runs 9-5 then the disks are unused the rest of the day?
MTBF rating is NOT for a single unit is is when used in 8-16 bay RAID device. Misleading.

Other Thoughts: The MTBF rating is questionable and unorthodox because it is not based on single-drive usage. If you use these in a RAID 4 or 5 configuration each member of the raid set gets roughly 1/4 the wear from writes. MTBF should be based on SINGLE DRIVE reliability where the drive is getting hit with both reads and write 24 hours a day 7 days a week.

WD is careful not to actually label these as Enterprise hard disk drives -- because they are not. But then why charge that kind of money for one either.

HGST/Hitachi Ultrastar 7K3000 HUA723020ALA641 2TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5
  • Verified Owner
  • neweggOwned For: 1 week to 1 month

4 out of 5 eggs Very good value when on sale, still an OK value at regular price but I would not go much higher than that 08/23/2016

This review is from: HGST/Hitachi Ultrastar 7K3000 HUA723020ALA641 2TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Hard Drive

Pros: No bad blocks
Got lucky, 25,000 hours not too bad for a refurb. Some do better. Do you feel lucky today?
Will likely outlast a brand-new desktop class hard drive by quite a lot especially a Brand S or Brand W
Feb. 2012 manufacturing date one of the newer ones (relatively speaking) for a Hitachi refurb
Fast: >155 MB/second transfer rate in a USB 3.0 docking station; more than adequate
Very fast: access time 10.8 mSec superb drive for random access to files/data
Not buggy: no errors nor glitches whatsoever with this model Hitachi hard drive
Enterprise quality: side by side with a desktop drive the desktop ones seem flimsy next to this Hitachi
Decent warranty: 90 days replacement when HDD is bought directly from Newegg
Quiet enough for office use.
For refurbs these ones from Newegg are good: fairly low hours and fairly recent build dates

Cons: Hot running if running in lay-flat USB doc 52 C Only use the vertical style docking for this hard drive then that are 37 C
Frequently out of stock, prices fluctuate on this item and when out of stock it redirects to 3rd party sellers who charge more for the same thing.

Other Thoughts: I am writing about product number 1Z4-001J-00078 that I bought directly from Newegg. They are frequently out of stock and when they are, your search takes you to the same drive sold by goHardDrive. They are a good, reputable company and offer a 1 year warranty. If stuck with a 3rd party seller I use them. Part number 1Z4-001J-00078 directly from Newegg costs less and has a 90 day warranty.

Recently they were on sale for 30, then out of stock, then the price went up to 40, and now out of stock again. Supply fluctuates at least at the low price you and I want to pay for this thing.

Mine arrived with over 26,000 hours on it but only about 20-30 power on cycles. These drives run very hot in a 'lay flat' style USB docking station. If you run it in the 'vertical mount' style dock though the temperatures are very good. Only 37 C. In the flat dock it was heating up to 52 C. That is a huge difference. This hard drive requires a lot of cooling air.

At 30 these were a very good deal I was lucky enough to get one. At 40 an OK deal, I just bought 1 more for that awaiting delivery. After this I will just stop buying until the price drops back to 30. The 90 day replacement warranty when the HDD is bought from Newegg is enough. You know these were not early deaths because the drives have nearly 3 years of usage on them already. But they can get damaged in shipping and fail slowly. Make sure you thoroughly test these drives: I suggest the HD Util utility's block by block health check first. Then run Windows formatting on the drive using the extended formatting not quick format. That runs for 3-4 hours but writes every block on the drive. Then after all this check that there are still 0 reallocated blocks and 0 pending blocks. If all is good, you have a very good hard drive that should have quite a bit of useful life left in it, for a little money. If you drive has a lot of motor whine is noisy or has bad blocks or will not format RMA the darned thing -- don't complain about it. It was damaged in shipping. Newegg will take care of you. There are brand new drives for example brand S that are 10X worse reliability than Hitachi.

When the price on these goes up to around 50 to 60 or more range though, then it is no longer such a good deal; you can find refurbished 3TB HGST drives for just a bit more money including some of the newer 7K4000 series. If have seen the 3TB going for around 62 to 68 range. Or another thing to consider, I bought a brand new, unused HUA723020ALA641 for 78 with free shipping in the original factory sealed packing. Not a refurb, not used, brand spanking new. Or new old stock, if you want to call it that; they have zero hours on them.


William N.'s Profile

Display Name: William N.

Date Joined: 07/18/01

  • Reviews: 50
  • Helpfulness: 26
  • First Review: 02/07/04
  • Last Review: 09/01/16
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