HGST 6TB SAS Hard Drive $90 or cheaper ->$50;) - Sold Out -

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Rand__

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Mar 6, 2014
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We used to do similar calculations and graphed them to see what the limit was on per drive cost back in the day when we had a Syquest 44mb drive and 200mb drive. We ran the same calculations for the Iomega Jaz and Syjet 1.5gb drives when they came out. When I learned about differentiation in calculus, I was able to make a formula that would immediately tell me the sweet spot in the log curve for a particular set of drive cost parameters, but I can't remember any of the math anymore. :oops:

My dad's a retired mechanical engineer who's always complaining about being bored, so I'll see if I can get him to re-create it. :D
Lol, good idea:)
 

Samir

Post Liker and Deal Hunter Extraordinaire!
Jul 21, 2017
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HSV and SFO
Lol, good idea:)
He just walked over to me with a graph and a formula, but he wasn't happy with it. The challenge is that it's a log curve instead of linear so in some aspects it's a bit tougher. Plus, the shipping cost isn't broken out individually so it makes coming up with the formula a bit trickier.
 

Rand__

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Mar 6, 2014
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Well shipping costs should be kept separately as they are not always present or differ. I'd look for one perTB formula and one shipping cost formula and then apply weight and quantities as appropriate for total
 

MortenB

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Jul 3, 2017
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My order of 20 disks arrived today. Well packaged and seems they are all from July 2018. Wont have time to test untill later tonight.

Imgur
Imgur
 
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Samir

Post Liker and Deal Hunter Extraordinaire!
Jul 21, 2017
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My order of 20 disks arrived today. Well packaged and seems they are all from July 2018. Wont have time to test untill later tonight.

Imgur
Imgur
With that date, is there a chance these will still be in warranty? That would make these a very sweet deal indeed!
 

MortenB

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Jul 3, 2017
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Code:
smartctl 7.0 2018-12-30 r4883 [x86_64-w64-mingw32-2016] (sf-7.0-1)
Copyright (C) 2002-18, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Vendor:               HGST
Product:              HUS726060AL5215
Revision:             DDD5
Compliance:           SPC-4
User Capacity:        6 001 175 126 016 bytes [6,00 TB]
Logical block size:   512 bytes
Physical block size:  4096 bytes
LU is fully provisioned
Rotation Rate:        7200 rpm
Form Factor:          3.5 inches
Logical Unit id:      0x5000cca2715bbd18
Serial number:        K8HMG1BD
Device type:          disk
Transport protocol:   SAS (SPL-3)
Local Time is:        Wed Jul 03 22:48:02 2019 WEDT
SMART support is:     Available - device has SMART capability.
SMART support is:     Enabled
Temperature Warning:  Enabled

=== START OF READ SMART DATA SECTION ===
SMART Health Status: OK

Current Drive Temperature:     42 C
Drive Trip Temperature:        85 C

Manufactured in week 28 of year 2018
Specified cycle count over device lifetime:  50000
Accumulated start-stop cycles:  3
Specified load-unload count over device lifetime:  600000
Accumulated load-unload cycles:  6
Elements in grown defect list: 0

Vendor (Seagate Cache) information
  Blocks sent to initiator = 6045317464064

Error counter log:
           Errors Corrected by           Total   Correction     Gigabytes    Total
               ECC          rereads/    errors   algorithm      processed    uncorrected
           fast | delayed   rewrites  corrected  invocations   [10^9 bytes]  errors
read:          0        0         0         0         45       1267,230           0
write:         0        0         0         0        148      12002,634           0
verify:        0        0         0         0        373          0,000           0

Non-medium error count:        0

No Self-tests have been logged
 

MortenB

Member
Jul 3, 2017
79
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42
Its 12Gbps here at least.

Code:
Protocol Specific port log page for SAS SSP
relative target port id = 1
  generation code = 3
  number of phys = 1
  phy identifier = 0
    attached device type: SAS or SATA device
    attached reason: unknown
    reason: unknown
    negotiated logical link rate: phy enabled; 12 Gbps
    attached initiator port: ssp=1 stp=1 smp=1
    attached target port: ssp=0 stp=0 smp=0
    SAS address = 0x5000cca2715b4b61
    attached SAS address = 0x5d05099000051b5b
    attached phy identifier = 1
    Invalid DWORD count = 0
    Running disparity error count = 0
    Loss of DWORD synchronization = 0
    Phy reset problem = 0
    Phy event descriptors:
     Invalid word count: 0
     Running disparity error count: 0
     Loss of dword synchronization count: 0
     Phy reset problem count: 0
relative target port id = 2
  generation code = 3
  number of phys = 1
  phy identifier = 1
    attached device type: no device attached
    attached reason: unknown
    reason: power on
    negotiated logical link rate: phy enabled; unknown
    attached initiator port: ssp=0 stp=0 smp=0
    attached target port: ssp=0 stp=0 smp=0
    SAS address = 0x5000cca2715b4b62
    attached SAS address = 0x0
    attached phy identifier = 0
    Invalid DWORD count = 0
    Running disparity error count = 0
    Loss of DWORD synchronization = 0
    Phy reset problem = 0
    Phy event descriptors:
     Invalid word count: 0
     Running disparity error count: 0
     Loss of dword synchronization count: 0
     Phy reset problem count: 0
 

Rand__

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Mar 6, 2014
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Else drive trip temp was quite high, no idea what these are rated for though
 

kapone

Well-Known Member
May 23, 2015
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Well...even though this was a really good price, I'm starting to lean more towards at least 8TB drives or larger.

Snagged two HGST 8TB SAS HUH728080AL4200 today for $100/ea shipped. These have a date of Aug 2017, (obviously no warranty through HGST as these are OEM drives), but they should check out fine.
 
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zack$

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Aug 16, 2018
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Was looking at these but idle power seems too high...Can't beat per TB price though.

Anyway, seller had 200+ over the weekend....and they were all gone within a day :eek:

Possible more may be available but this deal seems to be scorching.
 
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Rand__

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Mar 6, 2014
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42C is high? Im running 2 x Noctua A15 fans as intake in a Fractal Design Define R6. Taken from a D15 after a Chromax swap :p
42 is ok, but that was current temp. Drive trip is historical peak temp (next line after 42°)