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Thread: SSD Write Endurance 25nm Vs 34nm

  1. #1151
    Xtreme Addict bluestang's Avatar
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    NO M225->Vertex Turbo 64GB update till Monday

    Lost my connection to my Work PC from my home while stopping app and running wiper and screenshots

    Can't get it to reconnecto and won't be able to get it back up and running till then
    Home PC -- Cruncher #1
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    Work PC -- Cruncher #2 ... Crucial M225 64GB SSD Donated to Endurance Testing (Died at 968 TB of writes...no that is not a typo!)
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  2. #1152
    Moderator Anvil's Avatar
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    @Vapor



    I like the custom drivename

    One of the weakest 4K QD1 results I've seen on a SF1 series drive, I've got one that hovers around 14MB/s, must be 25nm.

    Did you check what NAND and the number of dies?
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  3. #1153
    Admin Vapor's Avatar
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    Hynix 32nm

    16 of the little buggers.

  4. #1154
    Moderator Anvil's Avatar
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    Quote Originally Posted by bluestang View Post
    NO M225->Vertex Turbo 64GB update till Monday

    Lost my connection to my Work PC from my home while stopping app and running wiper and screenshots

    Can't get it to reconnecto and won't be able to get it back up and running till then
    I might be able to add the wiper process to the loop, maybe an option to let it run every n loops.

    You should let it run for a day or two just to see how bad it gets.
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  5. #1155
    Moderator Anvil's Avatar
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    Quote Originally Posted by Vapor View Post
    Hynix 32nm
    16 of the little buggers.
    I find that quite interesting, this will be the first Hynix NAND to be tested, 32nm could go both ways.

    --

    199.82TB Host writes
    Reallocated sector count : 6
    Last edited by Anvil; 07-30-2011 at 10:51 AM.
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  6. #1156
    Admin Vapor's Avatar
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    I find it interesting too, I just don't think highly of Hynix NAND. Slow, rated for 3000 P/E cycles despite being 34nm-class, very inexpensive...when I think of Hynix NAND, I just don't think of quality.

    While I have a hunch the Intel 320 and SF-1200/2200 will be the strongest for endurance (both have parity, SF also can achieve <1.00x WA and SF also has LTT, helping it last longer in terms of days at the expense of performance), but I wouldn't be surprised if this drive were the fastest to die. Maybe further down the road I'll enter an nLTT F60A (IMFT 25nm) or even find an F60 (IMFT 34nm) to enter, but only after one of the two drives I'm running dies (essentially out of SATA ports on the system used for this).

  7. #1157
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    Quote Originally Posted by johnw View Post
    265.419 TiB, 726 hours, sa177: 1/1/21827
    MOVEMENT in attribute 178 raw!!!! Changed from 276 to 282. Now adding it to my reporting list:

    284.151 TiB, 776 hours, sa177: 1/1/23345, sa178: 72/72/282

    Average speed reported by Anvil's app has been steady at about 112MB/s.

    The other unknown SMART attribute 235 is still at 99/99/2, just as it was when the SSD was fresh out of the box.

    64GB Samsung 470

    I wonder if SA178 is reallocated block count? Maybe the SSD shipped with a number of reallocated blocks (from Samsung internal burn-in test?) and only now have there been any new reallocated blocks? I don't know, just guessing.

    Right after the above data, I upgraded to the latest version of ASU, Beta4. Before restarting endurance testing, I ran Samsung's SSD Optimization software (Magician), and also ran ASU SSD benchmark and AS-SSD.
    Last edited by johnw; 07-30-2011 at 11:50 AM.

  8. #1158
    Admin Vapor's Avatar
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    Oooo

    Now is that 6 blocks (equiv) or 1 block (equiv)? Both are multiples of six, it moved by a chunk of six, and the first movement was by a chunk of six, so I'm guessing it's 1 block (equiv) and for some reason the raw value moves in steps of six. Good thing I've been keeping track of SA178 this whole time, don't need to add anything

  9. #1159
    Xtreme Addict bluestang's Avatar
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    Quote Originally Posted by Anvil View Post
    I might be able to add the wiper process to the loop, maybe an option to let it run every n loops.

    You should let it run for a day or two just to see how bad it gets.
    Now that would be pretty cool!

    Also, back online sooner than expected

    M225->Vertex Turbo 64GB Update:

    5.71TiB, MWI 96, 238 Raw Wear, 37.54MiB/s
    Home PC -- Cruncher #1
    GA-P67A-UD4-B3 BIOS F8 modded, i7-2600k (L051B138) @ 4.5 GHz, 1.260v full load, HT Enabled, Corsair H70 exhausted @ 1600rpm
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    Work PC -- Cruncher #2 ... Crucial M225 64GB SSD Donated to Endurance Testing (Died at 968 TB of writes...no that is not a typo!)
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  10. #1160
    Xtreme Mentor Ao1's Avatar
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    Quote Originally Posted by Vapor View Post
    Hynix 32nm

    16 of the little buggers.
    Do you know the NAND part number?

  11. #1161
    Admin Vapor's Avatar
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    Quote Originally Posted by ao1 View Post
    do you know the nand part number?
    h27ubg8t2atr

    2011-07-25_11-18-43_744.jpg

  12. #1162
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    Quote Originally Posted by johnw View Post
    284.151 TiB, 776 hours, sa177: 1/1/23345, sa178: 72/72/282
    294.054 TiB, 802 hours, sa177: 1/1/24157, sa178: 71/71/290

    Average speed reported by Anvil's app has been steady at about 112MB/s.

    The other unknown SMART attribute 235 is still at 99/99/2, just as it was when the SSD was fresh out of the box.

    64GB Samsung 470

    sa178 continues to increase (raw value) and the normalized value went from 72 to 71. Interesting, maybe the flash is finally starting to wear out?

  13. #1163
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    SA178 having a reading of 290 answers the 6 vs. 1 question...it looks like 6 blocks lost and now 14 blocks lost

    Do you know when it ticked over to 71 normalized? If it happened at 285, then it could be an indication of how the normalized value is calculated and how much NAND failure is 'acceptable' (with an allocation of 1000 blocks to fail and every 10 blocks it moves 1 step).

  14. #1164
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    No, I have only been checking it once a day, so I don't know any more details. Maybe later this week I will try recording the SMART attributes several times in one day, if I get a chance.

  15. #1165
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    m4 update:

    194.0943 TiB
    648hours
    Avg speed 88.70 MiB/s.
    AD gone from 251 to 243.
    P/E 3394.
    MD5 OK.
    Still no reallocated sectors

    M4-CT064 M4SSD2 SATA Disk Device_1GB-20110801-0031.PNG
    1: AMD FX-8150-Sabertooth 990FX-8GB Corsair XMS3-C300 256GB-Gainward GTX 570-HX-750
    2: Phenom II X6 1100T-Asus M4A89TD Pro/usb3-8GB Corsair Dominator-Gainward GTX 460SE/-X25-V 40GB-(Crucial m4 64GB /Intel X25-M G1 80GB/X25-E 64GB/Mtron 7025/Vertex 1 donated to endurance testing)
    3: Asus U31JG - X25-M G2 160GB

  16. #1166
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    C300 Update

    133.72TiB, 55MWI, 2260 raw wear, speed is down to 61.6MiB/sec (likely due to the SF-1200's introduction), reallocations still at 2048/1, MD5 OK

    SF-1200 nLTT Update

    9.688TiB host writes, 3.781TiB NAND writes, 100 MWI, 60.5 raw wear, 62.35MiB/sec @ 46% setting, no reallocations, haven't started MD5 testing yet.

  17. #1167
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    Very good with the no LTT drive. Can the end user modify the firmware and remove LTT is my question ?

  18. #1168
    Xtreme Mentor Ao1's Avatar
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    Quote Originally Posted by Vapor View Post
    h27ubg8t2atr
    I can't find data to match the last two letters, but other than that here are the specs:

    Page size: 8,640 bytes (8,192 + 448)
    Block size: 256 pages (2M+112 bytes
    Plane size: 1,024 blocks
    P/E: 3,000

    I'm really looking to see what happens without throttling getting in the way

    Untitled.png
    Last edited by Ao1; 08-01-2011 at 01:08 AM.

  19. #1169
    Moderator Anvil's Avatar
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    204.43TB Host writes
    Reallocated sectors 6
    MD5 OK

    33.00MiB/s on avg for the last 51.7 hours.
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  20. #1170
    Xtreme Addict bluestang's Avatar
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    M225->Vertex Turbo 64GB Update:

    10.31TiB, MWI 92, 421 Raw Wear, 45.30MiB/s for the last 22.1 hours (<-stopped, ran wiper, then restarted)
    No MD5 Testing yet.

    Also, noticed change in C3 from 0 to 1 and CE from 1 to 214.

    CDI-M225-OCZ-VERTEX-TURBO-08.01.2011.jpg
    Home PC -- Cruncher #1
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    Samsung Green 2x4GB @2133 C10, Gigabyte 7950 @1200/1250, Vertex 4 128GB, 2x3TB WD Red, F4EG 2TB, BR Burner, Win7 Ult x64, CM690, HX750

    Work PC -- Cruncher #2 ... Crucial M225 64GB SSD Donated to Endurance Testing (Died at 968 TB of writes...no that is not a typo!)
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  21. #1171
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    m4 update:
    New milestone passed 200TiB with no reallocated sectors

    200.3614 TiB
    668hours
    Avg speed 88.71 MiB/s.
    AD gone from 243 to 240.
    P/E 3505.
    MD5 OK.
    Still no reallocated sectors

    M4-CT064 M4SSD2 SATA Disk Device_1GB-20110801-2105.PNG
    1: AMD FX-8150-Sabertooth 990FX-8GB Corsair XMS3-C300 256GB-Gainward GTX 570-HX-750
    2: Phenom II X6 1100T-Asus M4A89TD Pro/usb3-8GB Corsair Dominator-Gainward GTX 460SE/-X25-V 40GB-(Crucial m4 64GB /Intel X25-M G1 80GB/X25-E 64GB/Mtron 7025/Vertex 1 donated to endurance testing)
    3: Asus U31JG - X25-M G2 160GB

  22. #1172
    Admin Vapor's Avatar
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    Very impressive

    Also of note, your WA has been creeping upward for a long time now. At 20TiB, it was 1.0626x; at 40TiB, it was 1.0727x; at 91TiB, it was 1.078x; at 130TiB, it was 1.089x; at 200TiB, it's 1.0933x. Before 20TiB (when calculation is less precise), it climbed from 1.028x to 1.0626x pretty smoothly and quickly....it's been a very smooth climb the entire time actually.

  23. #1173
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    Quote Originally Posted by johnw View Post
    294.054 TiB, 802 hours, sa177: 1/1/24157, sa178: 71/71/290
    302.868 TiB, 826 hours, sa177: 1/1/24873, sa178: 71/71/290

    Average speed reported by Anvil's app has been steady at about 113MB/s.

    The other unknown SMART attribute 235 is still at 99/99/2, just as it was when the SSD was fresh out of the box.

    64GB Samsung 470

  24. #1174
    Admin Vapor's Avatar
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    300TiB broken

  25. #1175
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    Quote Originally Posted by Vapor View Post
    Very impressive

    Also of note, your WA has been creeping upward for a long time now. At 20TiB, it was 1.0626x; at 40TiB, it was 1.0727x; at 91TiB, it was 1.078x; at 130TiB, it was 1.089x; at 200TiB, it's 1.0933x. Before 20TiB (when calculation is less precise), it climbed from 1.028x to 1.0626x pretty smoothly and quickly....it's been a very smooth climb the entire time actually.
    Interesting observations! Maybe SSD is trying to leverage the wear more aggressively thus doing more static data rotation and increasing writes?

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