IBM branded STec (s840?) eMLC 400GB SAS SSDs $40/ea shipped

Discussion in 'Great Deals' started by arglebargle, Apr 23, 2019.

  1. arglebargle

    arglebargle H̸̖̅ȩ̸̐l̷̦͋l̴̰̈ỏ̶̱ ̸̢͋W̵͖̌ò̴͚r̴͇̀l̵̼͗d̷͕̈

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    I found these this morning but can't find references to the part numbers to gather more information:

    IBM 400GB SSD 2.5 IBM00-02054-MI5BBCTU PN 9970678 in Tray | eBay

    These are STec S840 series (S840's I'm going to assume, the gen2 S842 is a 2013 part and these were available starting in 2011) eMLC with a rated endurance of 7.3PB for the 400GB size. They also made a "write intensive" (as if 7.3PB isn't write intensive enough) drive that's the same 512GB sized drive underprovisioned to 300GB for even more write endurance.

    I ordered a batch of these out of curiosity, wear is like ~225TBW-440TBW over 3.5 years of a rated 7.3PB endurance. One bum drive out of 6, the only drive of the batch with a 2011 mfgr date the others are all 2013 parts. All drives had ~3-3.5Yrs run time, 3 with ~220TBW, 2 with ~440TBW, one (bad) with 2TBW that chucked out 1k Grown Defects before I interrupted the badblocks run.

    Performance is alright, but not great given power consumption. They're around 25% slower than the Samsung 850 Pro's I had spare to run comparisons.

    FWIW these do come formatted to 528 byte sector size, though the drive controller supports 512,520 and 528b sectors. I had a crack at reformatting using sg_format and failed but had success with ahouston/setblocksize
     
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    Last edited: May 18, 2019
  2. nthu9280

    nthu9280 Well-Known Member

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    Are drivesupply & goharddrive related? No first hand experience but, I heard of questionable practices from goharddrive on the forum.
     
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  3. T_Minus

    T_Minus Moderator

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    I think this is pre-HGST acquisition which normally STEC drives are very very high power usage, and mediocre performance.

    This drive is a toss-up unless we can x-ref with STEC part, which I tried and couldn't :/ hard to read though too.
     
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  4. Rand__

    Rand__ Well-Known Member

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    Its an STEC z161zf2e as one can see when squinting propertly;)
    sTec Z16IZF2E-100UCU 100GB SFF SAS SSD

    O/C not the 100GB version i linked, thats just for reference of the class of the drive
     
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  5. T_Minus

    T_Minus Moderator

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  6. T_Minus

    T_Minus Moderator

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    Def. not something I'll be buying.
     
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  7. Rand__

    Rand__ Well-Known Member

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  8. Rand__

    Rand__ Well-Known Member

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    -
     
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    Last edited: Apr 23, 2019
  9. itronin

    itronin Active Member

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    EDIT: My old eyes couldn't squint fast enough...

    Could it be this Z16IZF2E-400UCV

    a couple of sites specify:

    Read speed 500 MB/s
    Write speed 300 MB/s
    Memory type MLC
    Data transfer rate 6 Gbit/s
    Random read (4KB) 50000 IOPS
    Random write (4KB) 15000 IOPS
    SSD capacity 400 GB
     
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    Last edited: Apr 23, 2019
  10. arglebargle

    arglebargle H̸̖̅ȩ̸̐l̷̦͋l̴̰̈ỏ̶̱ ̸̢͋W̵͖̌ò̴͚r̴͇̀l̵̼͗d̷͕̈

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    I picked up a few, I'm willing to gamble at $0.10/GB

    I'll post details when they arrive.
     
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    Last edited: Apr 23, 2019
  11. mpeter

    mpeter New Member

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  12. Rand__

    Rand__ Well-Known Member

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  13. arglebargle

    arglebargle H̸̖̅ȩ̸̐l̷̦͋l̴̰̈ỏ̶̱ ̸̢͋W̵͖̌ò̴͚r̴͇̀l̵̼͗d̷͕̈

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    Sorry if this is a bit off topic, I was wondering if anyone can help me understand what's going on here:

    IBM 98Y4524 Flash Drive SSD SED SATA 400gb DS8870 | eBay

    Is this just a SATA drive with some kind of adapter inline or is there something proprietary happening here? Shipping kind of ruins the appeal of these as a "deal" drive but I'm curious what this assembly is.
     
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  14. itronin

    itronin Active Member

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    I think you want to look at this thread
     
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  15. BlueFox

    BlueFox Active Member

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    That's a Sandisk CloudSpeed 1000. It's a standard SATA drive (though 1.8", so different connector than 2.5" or 3.5"). Looks like you may need 3.3V for it too, which isn't the most common.
     
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  16. cactus

    cactus Moderator

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    It also looks like a dual port 1.8 connector... So maybe the interposer is converting sata to dual port sas?
     
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  17. TedB

    TedB Member

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    Few years ago I did get a bunch of them (IBM 98Y4524) and never used them they still are stored somewhere safely for "future" use :D

    Here is what I remember:
    • require 3.3V power so you cannot use standard disk drive cable
    • came formatted as 520, but can be easily reformatted to 512
    • they get very hot quickly
    • performance was reasonable (don't remember numbers)
     
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  18. arglebargle

    arglebargle H̸̖̅ȩ̸̐l̷̦͋l̴̰̈ỏ̶̱ ̸̢͋W̵͖̌ò̴͚r̴͇̀l̵̼͗d̷͕̈

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    Thanks everyone :)
     
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  19. Schoondoggy

    Schoondoggy Member

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    As far as I know they are not related, what issues have you seen from goharddrive?
     
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  20. arglebargle

    arglebargle H̸̖̅ȩ̸̐l̷̦͋l̴̰̈ỏ̶̱ ̸̢͋W̵͖̌ò̴͚r̴͇̀l̵̼͗d̷͕̈

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    They erase SMART data on their hard drives so it's hard to gauge remaining lifetime and/or previous usage.
     
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