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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.

READ FULL REVIEW
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.

READ FULL REVIEW

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.

READ FULL REVIEW

William N.'s Profile

Display Name: William N.

Date Joined: 07/18/01

  • Reviews: 50
  • Helpfulness: 27
  • First Review: 02/07/04
  • Last Review: 09/01/16
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