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Thread: SSD Write Endurance 25nm Vs 34nm

  1. #5026
    Xtreme X.I.P.
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    Intel 330 120GB

    641.41TB Host writes
    2.32TiB Host reads
    Reallocated sectors : 05 43
    Available Reserved Space : E8 100
    MWI 25
    [B5] 21
    [B6] 22

    [F1] Total LBAs Written 21017815
    [F2] Total LBAs Read 75912
    [F9] Total NAND Writes 463017GB // ~452TiB
    POH 1546
    MD5 OK

    125.50MiB/s on avg (~11 hours)

    --

    Kingston SSDNow 40GB (X25-V)

    1152.56TB Host writes (37767241*32)
    Reallocated sectors : 05 67
    Available Reserved Space : E8 98
    POH 10282
    MD5 OK

    36.89MiB/s on avg (~11 hours)

    --

    I needed the SATA ports last night so both drives had a 10 minute break. (gave them a cleaning as well by triggering TRIM)

    --

    Endurance_cr_20120728_1500.png

    I've changed the filling for the drives that are paused.
    Last edited by Anvil; 07-28-2012 at 02:49 AM.
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  2. #5027
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    Based on current figures this might be the outcome at MWI 0

    I330_act_est.png
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  3. #5028
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    We used a Vertex 3 MaxIOPS 240GB at work for a critical server.

    We had write errors from Oracle, so we switched the SSD. We discovered that the SSD, even with a almost perfect SMART data (2TB write, 200TB read, maximum difference between most worn cell and best cell = 1), it was impossible to copy a 8GB file entirely, it blocks when there is 760MB left. All the other data was intact.

    How can this be possible? Isn't the controller supposed to mark bad blocks and not use them? Or is it because the SSD doesn't have idle time?
    Yesterday I upgraded the firmware to 2.22. It was 2.15 since installed.
    Last edited by kensiko; 07-28-2012 at 04:16 AM.
    ---------------------------------
    Cooler Master HAF912
    Kingston Twister bearing 120mm fans
    Sunbeam Rheosmart, fans controlled with Speedfan
    Asrock Z68 Extreme3 Gen3, modded BIOS OROM 11.6
    2500K @ 4.5 GHz
    OCZ Vendetta 2
    Visionteck HD7850
    4 x 4GB Gskill 1600MHz 1.5V
    1680GB of SSD: Mushkin Chronos Deluxe 240GB, Sandisk Extreme 480GB, 2 x Mushkin Chronos 480GB RAID0
    LG 10x Blu-ray burner and Lite-On DVD burner

  4. #5029
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    We are really not a support service for OCZ, especially since I'm here to kill OCZ drives, but there seems to be something ether wrong with your SSDs or server. I've never seen such a situation on SSDs here, and I've copied some whopper 20gig files to and from them.

  5. #5030
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    Kensiko...this thread is dedicated to endurance testing, maybe you should post in the hardware-storage section.
    'Best Bang For The Buck' Build - CM Storm Sniper - CM V8 GTS HSF
    2500K @ 4.5GHz 24/7 - Asus P8Z68-V Pro Gen3 - GSkill 2x4GB DDR3-2400 C10
    Sapphire Vapor-X 7770 OC Edition - PC Power & Cooling Silencer MkIII 600W
    Boot: 2x 64GB SuperSSpeed S301 SLC Raid 0 Work: Intel 520 120GB
    Storage: Crucial M500 1TB - Ocz Vertex 4 128GB - 4x 50GB Ocz Vertex 2
    HDDs: 2 x 1TB WD RE4 Raid0 - Ext.Backup: 2 x 1.5TB WD Blacks Raid 1

  6. #5031
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    Here are todays update:

    m4
    1295.2153 TiB
    5392 hours
    Avg speed 74.43 MiB/s.
    AD 133 to 126
    P/E 22267.
    C3 4457
    CE 58
    MD5 OK.
    Reallocated sectors : 00


    Intel X25-M G1 80GB
    825.25 TiB
    24679 hours
    Reallocated sectors : 226 to 255 to 17
    Available Reserved space: 40 to 37
    MWI= 128 to 111
    MD5 =OK
    30.75 MiB/s on avg


    Intel X25-E 64GB
    594.85 TiB
    1860-30=1830 hours
    Reallocated sectors : 0
    Available Reserved space: 99
    MWI= 96
    MD5 =OK
    91.32 MiB/s on avg


    Mtron Pro 7025 32GB
    Paused until new firmware is updated.
    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

  7. #5032
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    Samsung 830 256GB Day 129

    (GiB) 3,197,663
    (TiB) 3,122
    (PiB) 3.07


    (Avg) 298.46 MB/s

    (B1) Wear Leveling Count: 13,849

    (B6) Erase Fail Count: 9
    (05) Reallocated Sectors: 36864
    (POH) 3177


    -------------------

    4PB, here I come. It's odd that it's been almost 1.5PB without an erase failure, but hey, I'll take it.

  8. #5033
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    Intel 330 120GB

    651.40TB Host writes
    2.34TiB Host reads
    Reallocated sectors : 05 45 +2
    Available Reserved Space : E8 100
    MWI 24
    [B5] 22
    [B6] 23

    [F1] Total LBAs Written 21345238
    [F2] Total LBAs Read 76706
    [F9] Total NAND Writes 470230GB // ~459TiB
    POH 1569
    MD5 OK

    125.28MiB/s on avg (~35 hours)

    --

    Kingston SSDNow 40GB (X25-V)

    1155.21TB Host writes (37854060*32)
    Reallocated sectors : 05 67
    Available Reserved Space : E8 98
    POH 10305
    MD5 OK

    34.38MiB/s on avg (~35 hours)

    --
    -
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  9. #5034
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    Sandisk Extreme G25 - 120gb - Day 54

    Drive hours: 1291
    ASU GiB written: 558,052.55 GiB (544.97 TiB)
    Avg MB/s: 125.86 MB/s (69.64 hours)
    MD5: OK

    Host GB written (F1): 562,193 GiB (549.02 TiB)
    NAND writes (E9): 419,639 GiB (409.80 TiB)

    Retired Block Count (05): 4 raw
    Failure count (AB, AC): 1 program, 1 erase
    Raw Error Rate (01): 100 normalized
    Media Wearout Indicator (E7): 10 normalized
    Wear Range Delta (B1): 4 raw
    Reported Uncorrectable Errors (BB): 0 raw

    Vertex 4 - 50% OP - 128gb - PAUSED

    Drive hours: 214
    ASU GiB written: 96,525.65 GiB (94.26 TiB)
    Avg MB/s: 0 MB/s (0 hours)
    MD5: OK

    Host GB written (E8): 97,836.11 GiB (95.54 TiB, 205177187947 raw)

    Raw Read Error Rate (01): 5 raw
    Reallocated Block Count (05): 0 raw
    Remaining Life (E9): 77 normalised

    I decided to let the V4 go for a while, but the loop started degrading to sub 100meg per sec speeds (after the initial burst of performance)

    Drive just doesn't want to do what I want it to do.

  10. #5035
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    Here are todays update:

    m4
    1301.0084 TiB
    5415 hours
    Avg speed 74.71 MiB/s.
    AD 126 to 123
    P/E 22365.
    C3 4457
    CE 58
    MD5 OK.
    Reallocated sectors : 00


    Intel X25-M G1 80GB
    827.79 TiB
    24702 hours
    Reallocated sectors : 17 to 42
    Available Reserved space: 37 to 35
    MWI= 111 to 104
    MD5 =OK
    29.87 MiB/s on avg


    Intel X25-E 64GB
    602.03 TiB
    1883-30=1853 hours
    Reallocated sectors : 0
    Available Reserved space: 99
    MWI= 96
    MD5 =OK
    92.44 MiB/s on avg


    Mtron Pro 7025 32GB
    Paused until new firmware is updated.

    I'm going for 3 weeks on vacation so my updates can be kind of sporadic. I've installed a ups to prevent a shutdown from powerfailures and will be crossing my fingers
    I think that the G1 might soon die on me. It droppes reserve space at 1-2% every day, just hope it stays in there until I'm back again.
    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

  11. #5036
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    B.A.T. -- I don't know about you, but my drives only like to die when I'm out of town. I'd say it's a guarantee that something will die while you're gone. That's just how it works.

  12. #5037
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    I'll just have to wait and see
    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

  13. #5038
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    Intel 330 120GB

    661.85TB Host writes
    2.37TiB Host reads
    Reallocated sectors : 05 52 +7
    Available Reserved Space : E8 100
    MWI 22
    [B5] 25
    [B6] 27

    [F1] Total LBAs Written 21687618
    [F2] Total LBAs Read 77614
    [F9] Total NAND Writes 477773GB // ~466TiB
    POH 1593
    MD5 OK

    125.31MiB/s on avg (~59 hours)

    --

    Kingston SSDNow 40GB (X25-V)

    1157.99TB Host writes (37945037*32)
    Reallocated sectors : 05 67
    Available Reserved Space : E8 98
    POH 10329
    MD5 OK

    33.89MiB/s on avg (~59 hours)

    --

    Endurance_cr_20120730_1219.png
    Last edited by Anvil; 07-30-2012 at 02:20 AM. Reason: added chart
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  14. #5039
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    Intel 330 120GB

    672.40TB Host writes
    2.39TiB Host reads
    Reallocated sectors : 05 60 +8
    Available Reserved Space : E8 100
    MWI 21
    [B5] 29
    [B6] 31

    [F1] Total LBAs Written 22033283
    [F2] Total LBAs Read 78465
    [F9] Total NAND Writes 485387GB // ~474TiB
    POH 1617
    MD5 OK

    125.41MiB/s on avg (~83 hours)

    --

    Kingston SSDNow 40GB (X25-V)

    1160.78TB Host writes (38036572*32)
    Reallocated sectors : 05 68 +1
    Available Reserved Space : E8 98
    POH 10354
    MD5 OK

    33.69MiB/s on avg (~83 hours)

    --
    -
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  15. #5040
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    Sandisk Extreme G25 - 120gb - Day 56

    Drive hours: 1343
    ASU GiB written: 580,836.71 GiB (567.227 TiB)
    Avg MB/s: 125.13 MB/s (121.85 hours)
    MD5: OK

    Host GB written (F1): 585,091 GiB (571.38 TiB)
    NAND writes (E9): 436,741 GiB (426.50 TiB)

    Retired Block Count (05): 4 raw
    Failure count (AB, AC): 1 program, 1 erase
    Raw Error Rate (01): 116 normalized
    Media Wearout Indicator (E7): 10 normalized
    Wear Range Delta (B1): 4 raw
    Reported Uncorrectable Errors (BB): 0 raw

  16. #5041
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    I gave both drivers a cleaning (trim) last night, doesn't look like it helped.

    Intel 330 120GB

    682.46TB Host writes
    2.42TiB Host reads
    Reallocated sectors : 05 74 14
    Available Reserved Space : E8 100
    MWI 20
    [B5] 36
    [B6] 38

    [F1] Total LBAs Written 22362756
    [F2] Total LBAs Read 79261
    [F9] Total NAND Writes 492645GB // ~481TiB
    POH 1640
    MD5 OK

    125.22MiB/s on avg (~12 hours)

    --

    Kingston SSDNow 40GB (X25-V)

    1163.53TB Host writes (38126614*32)
    Reallocated sectors : 05 68
    Available Reserved Space : E8 98
    POH 10377
    MD5 OK

    35.29MiB/s on avg (~12 hours)

    --
    -
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  17. #5042
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    Reallocated sectors is currently at 80 on the 330, it does look controlled but it is a bit early for a 120GB drive.

    According to the recent review at Anandtech it is populated with "cheaper, lower endurance MLC NAND".

    I330_MWI_vs_RSC_2012_08_01_1700.png


    Endurance_cr_20120731.png
    Last edited by Anvil; 08-01-2012 at 07:49 AM.
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  18. #5043
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    Quote Originally Posted by Anvil View Post
    According to the recent review at Anandtech it is populated with "cheaper, lower endurance MLC NAND".
    The odd thing about Anand's review is his short endurance test. He has 7629 GiB of NAND writes to a 60GB 330, but MWI is still at 100:



    If the 330 flash has 3000 P/E cycles, then I would expect each decrement in MWI to be 30 (=300/100) cycles. But if there is 64GiB of flash on board, then 7629 GiB comes to 119.2 (=7629/64) cycles. The MWI should be at 97 or 96. But it is still at 100.

    If the MWI is linear (and not buggy), then at least 119.2 cycles per MWI comes to at least 11920 P/E cycles for the flash, which is hard to believe.

    I wonder if there is a bug in Intel's MWI computation. Maybe they are using host writes instead of NAND writes. Since Anand's host writes are only 1.55 TiB, that comes to only 24.8 (=1.55x1024/64) cycles if we incorrectly assume write amplification is 1.0. Since 3000 P/E cycle flash would be 30 cycles per MWI decrement, then we would expect the MWI to still be at 100 if Intel is incorrectly using host writes rather than NAND writes to compute MWI.

    In contrast, the MWI for Anvil's 120GB 330 looks like it is counting for about 5000 cycles:

    682.46TB Host writes
    2.42TiB Host reads
    Reallocated sectors : 05 74 14
    Available Reserved Space : E8 100
    MWI 20
    [B5] 36
    [B6] 38
    [F1] Total LBAs Written 22362756
    [F2] Total LBAs Read 79261
    [F9] Total NAND Writes 492645GB // ~481TiB
    492645GiB/128GiB = 3848.8 cycles.

    If MWI wears out at 0, then it looks like it is counting to:

    3848.8 x 100 / (100 - 20) = 4811 P/E cycles
    Last edited by johnw; 08-01-2012 at 01:10 PM.

  19. #5044
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    There is a grace period just like in the original SF firmware.

    It took 14.87 TiB of NAND writes (21.12TiB of Host Writes) before it turned 99.

    It averages (from WMI 98 and down) 8.29TiB (host) / 5.84TiB (nand) writes between each MWI decrement.

    At the current rate, my drive looks to point to about 5400 (writes / capacity "P/E cycles") and on average 53.53 cycles per MWI.
    (figures are changing as reallocated-sectors increase)

    Bases on NAND writes

    I330_MWI_vs_RSC_NAND_2012_08_01.png
    Last edited by Anvil; 08-01-2012 at 01:44 PM.
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  20. #5045
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    Quote Originally Posted by Anvil View Post
    There is a grace period just like in the original SF firmware.
    That seems like a bug to me. I can see having a "grace period" for not throttling the drive under heavy writes. But it makes no sense to have a "grace period" for MWI. I have seen no evidence that the flash wears out more slowly during the first few percent of flash writes.

    I'm surprised Intel did not fix that bug. Maybe Intel does not really have full access to the Sandforce firmware.

  21. #5046
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    As SMART is adapted to Intel's way of reporting there could of course be side-effects.

    Will have to check how the other (non-throttled) SF based drives worked during the first few MWI decrements.

    The Force 3 changed to 99 at about 15TiB and then again to 98 at about 20TiB. (Link)
    Last edited by Anvil; 08-01-2012 at 01:57 PM.
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  22. #5047
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    Quote Originally Posted by johnw View Post
    Maybe Intel does not really have full access to the Sandforce firmware.
    Ahem. *Cough*

  23. #5048
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    Here are todays update:

    m4
    1320.3993 TiB
    5491 hours
    Avg speed 74.58 MiB/s.
    AD 123 to 112
    P/E 22695.
    C3 4457
    CE 58
    MD5 OK.
    Reallocated sectors : 00


    Intel X25-M G1 80GB
    835.05 TiB
    24778 hours
    Reallocated sectors : 42 to 115
    Available Reserved space: 35 to 31
    MWI= 104
    MD5 =OK
    27.79 MiB/s on avg


    Intel X25-E 64GB
    625.97 TiB
    1959-30=1929 hours
    Reallocated sectors : 0 to 2
    Available Reserved space: 99
    MWI= 96 to 95
    MD5 =OK
    91.68 MiB/s on avg


    Mtron Pro 7025 32GB
    Paused until new firmware is updated.

    The G1 continues its path to death and the E had its first 2 reallocated sectors. The m4 just steams on
    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

  24. #5049
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    Intel 330 120GB

    692.78TB Host writes
    2.44TiB Host reads
    Reallocated sectors : 05 100 +26
    Available Reserved Space : E8 100
    MWI 18
    [B5] Program fail count 49
    [B6] Erase fail count 51
    [F1] Total LBAs Written 22700885
    [F2] Total LBAs Read 80112
    [F9] Total NAND Writes 500094GB // ~488TiB
    POH 1664
    MD5 OK

    125.36MiB/s on avg (~35 hours)

    --

    Kingston SSDNow 40GB (X25-V)

    1166.27TB Host writes (38216332*32)
    Reallocated sectors : 05 68
    Available Reserved Space : E8 98
    POH 10401
    MD5 OK

    33.90MiB/s on avg (~35 hours)

    --
    Last edited by Anvil; 08-02-2012 at 04:23 AM. Reason: fixed B5 and B6
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  25. #5050
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    Sandisk Extreme G25 - 120gb - Day 58

    Drive hours: 1343
    ASU GiB written: 600,727.94 GiB (586.65 TiB)
    Avg MB/s: 124.72 MB/s (167.61 hours)
    MD5: OK

    Host GB written (F1): 605,082 GiB (590.90 TiB)
    NAND writes (E9): 451,673 GiB (441.08 TiB)

    Retired Block Count (05): 4 raw
    Failure count (AB, AC): 1 program, 1 erase
    Raw Error Rate (01): 118 normalized
    Media Wearout Indicator (E7): 10 normalized
    Wear Range Delta (B1): 4 raw
    Reported Uncorrectable Errors (BB): 0 raw

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