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Thread: SSD Write Endurance 25nm Vs 34nm

  1. #4976
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    The Recovery time white paper discusses MLC-1 briefly.

  2. #4977
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    Samsung 830 256GB Day 122

    (GiB) 2,995,490
    (TiB) 2,925
    (PiB) 2.87


    (Avg) 298.77 MB/s

    (B1) Wear Leveling Count: 12,978

    (B6) Erase Fail Count: 9
    (05) Reallocated Sectors: 36864
    (POH) 2973


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

  3. #4978
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    Intel 330 120GB

    569.94TB Host writes
    2.04TiB Host reads
    Reallocated sectors : 05 20
    Available Reserved Space : E8 100
    MWI 34
    [B5] 10
    [B6] 10

    [F1] Total LBAs Written 18675804
    [F2] Total LBAs Read 66981
    [F9] Total NAND Writes 411416GB // ~402TiB
    POH 1381
    MD5 OK

    125.19MiB/s on avg (~253 hours)

    --

    Kingston SSDNow 40GB (X25-V)

    1133.32TB Host writes (37136841*32)
    Reallocated sectors : 05 62 // 1 up
    Available Reserved Space : E8 98
    POH 10116
    MD5 OK

    33.39MiB/s on avg (~253 hours)

    --

    Endurance_cr_20120721.png

    I330_MWI_vs_RSC.png

    edit:

    I'll update the chart later today if there are any updates...
    Last edited by Anvil; 07-21-2012 at 03:45 AM.
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  4. #4979
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    Sandisk Extreme G25 - 120gb - Day 46

    Drive hours: 1103
    ASU GiB written: 476,913.77 GiB (465.74 TiB)
    Avg MB/s: 126.09 MB/s (26.39 hours)
    MD5: OK

    Host GB written (F1): 479,554 GiB (468.31 TiB)
    NAND writes (E9): 357,930 GiB (349.54 TiB)

    Retired Block Count (05): 4 raw
    Failure count (AB, AC): 1 program, 1 erase
    Raw Error Rate (01): 114 normalized
    Media Wearout Indicator (E7): 10 normalized
    Wear Range Delta (B1): 3 raw
    Reported Uncorrectable Errors (BB): 0 raw

    Vertex 4 - 50% OP - 128gb - Day 1

    Drive hours: 31
    ASU GiB written: 23,158.21 GiB (22.62 TiB)
    Avg MB/s: 248.61 MB/s (26.28 hours)
    MD5: OK

    Host GB written (E8): 24,088.93 GiB (23.52 TiB, 50518137835 raw)

    Raw Read Error Rate (01): 6 raw
    Reallocated Block Count (05): 0 raw
    Remaining Life (E9): 94 normalised

    The second vertex 4 is going along quite a lot faster then the first one

  5. #4980
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    That is impressive Canthearu... I wonder how long it can keep that up?

  6. #4981
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    Here are todays update:

    m4
    1252.2432 TiB
    5224 hours
    Avg speed 74.47 MiB/s.
    AD 158 to 150
    P/E 21540.
    C3 4457
    CE 58
    MD5 OK.
    Reallocated sectors : 00


    Intel X25-M G1 80GB
    807.84 TiB
    24511 hours
    Reallocated sectors : 73 to 116
    Available Reserved space: 49 to 46
    MWI= 184 to 169
    MD5 =OK
    31.39 Mi/s on avg


    Intel X25-E 64GB
    541.83 TiB
    1692-30) 1662 hours
    Reallocated sectors : 0
    Available Reserved space: 100
    MWI= 96
    MD5 =OK
    91.10 MiB/s on avg
    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. #4982
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    Quote Originally Posted by Christopher View Post
    That is impressive Canthearu... I wonder how long it can keep that up?
    Not as good as the plextor m3p was (or my oem lite-on)

    Those marvell+toggle nand drives are just unbeatable.

  8. #4983
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    Quote Originally Posted by canthearu View Post
    Not as good as the plextor m3p was (or my oem lite-on)

    Those marvell+toggle nand drives are just unbeatable.
    That's probably true, but real MLC-1 also gets SLC like endurance. Perhaps only writing to one half of the drive will change the outcome this time?

  9. #4984
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    Samsung 830 256GB Day 123

    (GiB) 3,020,675
    (TiB) 2,949
    (PiB) 2.90


    (Avg) 298.62 MB/s

    (B1) Wear Leveling Count: 3,086

    (B6) Erase Fail Count: 9
    (05) Reallocated Sectors: 36864
    (POH) 2997


    -------------------
    We're closing in on 3PiB now. 48 more hours to 3000 TiB and another three days to 3PiB.

  10. #4985
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    Quote Originally Posted by canthearu View Post
    Not as good as the plextor m3p was (or my oem lite-on)

    Those marvell+toggle nand drives are just unbeatable.
    Plextor and lite-on are 1 in the same { PLDS}
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  11. #4986
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    Quote Originally Posted by Christopher View Post
    Samsung 830 256GB Day 123

    (GiB) 3,020,675
    (TiB) 2,949
    (PiB) 2.90


    (Avg) 298.62 MB/s

    (B1) Wear Leveling Count: 3,086

    (B6) Erase Fail Count: 9
    (05) Reallocated Sectors: 36864
    (POH) 2997


    -------------------
    We're closing in on 3PiB now. 48 more hours to 3000 TiB and another three days to 3PiB.
    Very impressive...the 830 has proven to be a very solid performer to say the least. I wish I had the extra resources to test 1 or 2 more large drives (240/256) and see just how big of a roll drive size plays in regards to endurance.
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  12. #4987
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    Here are todays update:

    m4
    1258.2423 TiB
    5248 hours
    Avg speed 74.41 MiB/s.
    AD 150 to 147
    P/E 21642.
    C3 4457
    CE 58
    MD5 OK.
    Reallocated sectors : 00


    Intel X25-M G1 80GB
    810.42 TiB
    24535 hours
    Reallocated sectors : 116 to 134
    Available Reserved space: 46 to 45
    MWI= 169
    MD5 =OK
    31.47 Mi/s on avg


    Intel X25-E 64GB
    549.24 TiB
    1716-30=1686 hours
    Reallocated sectors : 0
    Available Reserved space: 100
    MWI= 96
    MD5 =OK
    91.15 MiB/s on avg
    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. #4988
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    Quote Originally Posted by AMD_Freak View Post
    Plextor and lite-on are 1 in the same { PLDS}
    PLDS = Philips Liteon Digital Solutions
    http://www.pldsnet.com/

    Interesting that Plextor are advertised at that site too.

    I doesn't know of any relation between Plextor and PLDS.
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  14. #4989
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    Samsung 830 256GB Day 124

    (GiB) 3,046,610
    (TiB) 2,975
    (PiB) 2.92


    (Avg) 299.14 MB/s

    (B1) Wear Leveling Count: 13,198

    (B6) Erase Fail Count: 9
    (05) Reallocated Sectors: 36864
    (POH) 3021


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

  15. #4990
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    Intel 330 120GB

    589.82TB Host writes
    2.09TiB Host reads
    Reallocated sectors : 05 22 +2
    Available Reserved Space : E8 100
    MWI 31
    [B5] 11
    [B6] 11

    [F1] Total LBAs Written 19327088
    [F2] Total LBAs Read 68626
    [F9] Total NAND Writes 425764GB // ~416TiB
    POH 1427
    MD5 OK

    125.20MiB/s on avg (~299 hours)

    --

    Kingston SSDNow 40GB (X25-V)

    1138.59TB Host writes (37309611*32)
    Reallocated sectors : 05 65 // +3
    Available Reserved Space : E8 98
    POH 10162
    MD5 OK

    33.35MiB/s on avg (~299 hours)

    --

    Endurance_cr_20120723.png
    Last edited by Anvil; 07-23-2012 at 01:02 AM.
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  16. #4991
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    Hmmm, I seem to be getting some performance degredation ... something triggered the drive to shift to storage mode rather then performance mode. The attached picture shows how each run starts fast at about 400meg per sec, then drops to around 200meg per sec.

    Will secure erase and see if that fixes it!

    vertex 4 weird.gif

  17. #4992
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    Probably the drive just needs extra overprovisioning. Those 60GB are enough just to make the drive enter in MLC-1 mode. To keep it there, I would guess you would need to use even more over provisioning, like 70-75GB.

  18. #4993
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    Secure erase fixed it:

    vertex 4 weird fixed.gif

  19. #4994
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    At what point did it start slowing down?
    (history might repeat itself)
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  20. #4995
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    Quote Originally Posted by canthearu View Post
    Sandisk Extreme G25 - 120gb - Day 46

    Drive hours: 1103
    ASU GiB written: 476,913.77 GiB (465.74 TiB)
    Avg MB/s: 126.09 MB/s (26.39 hours)
    MD5: OK

    Host GB written (F1): 479,554 GiB (468.31 TiB)
    NAND writes (E9): 357,930 GiB (349.54 TiB)

    Retired Block Count (05): 4 raw
    Failure count (AB, AC): 1 program, 1 erase
    Raw Error Rate (01): 114 normalized
    Media Wearout Indicator (E7): 10 normalized
    Wear Range Delta (B1): 3 raw
    Reported Uncorrectable Errors (BB): 0 raw

    Vertex 4 - 50% OP - 128gb - Day 1

    Drive hours: 31
    ASU GiB written: 23,158.21 GiB (22.62 TiB)
    Avg MB/s: 248.61 MB/s (26.28 hours)
    MD5: OK

    Host GB written (E8): 24,088.93 GiB (23.52 TiB, 50518137835 raw)

    Raw Read Error Rate (01): 6 raw
    Reallocated Block Count (05): 0 raw
    Remaining Life (E9): 94 normalised

    The second vertex 4 is going along quite a lot faster then the first one
    Interesting to see what the V4 128 in SLC mode can do...

  21. #4996
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    Here are todays update:

    m4
    1264,4222 TiB
    5272 hours
    Avg speed 74.35 MiB/s.
    AD 147 to 144
    P/E 21747.
    C3 4457
    CE 58
    MD5 OK.
    Reallocated sectors : 00


    Intel X25-M G1 80GB
    813.02 TiB
    24559hours
    Reallocated sectors : 134 to 153
    Available Reserved space: 45 to 44
    MWI= 169 to 152
    MD5 =OK
    31.39 Mi/s on avg


    Intel X25-E 64GB
    556.88 TiB
    1740-30=1710 hours
    Reallocated sectors : 0
    Available Reserved space: 100
    MWI= 96
    MD5 =OK
    91.16 MiB/s on avg
    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. #4997
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    Samsung 830 256GB Day 125

    (GiB) 3,071,152
    (TiB) 2,999
    (PiB) 2.95


    (Avg) 298.87 MB/s

    (B1) Wear Leveling Count: 13,304

    (B6) Erase Fail Count: 9
    (05) Reallocated Sectors: 36864
    (POH) 3045


    -------------------
    The drive actually has 3012 TiB in LBA writes. I lost 13 TIB in ASU along the way.

  23. #4998
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    Intel 330 120GB

    600.30TB Host writes
    2.12TiB Host reads
    Reallocated sectors : 05 24 +2
    Available Reserved Space : E8 100
    MWI 30
    [B5] 12
    [B6] 12

    [F1] Total LBAs Written 19670569
    [F2] Total LBAs Read 69534
    [F9] Total NAND Writes 433332GB // ~423TiB
    POH 1451
    MD5 OK

    125.21MiB/s on avg (~324 hours)

    --

    Kingston SSDNow 40GB (X25-V)

    1141.37TB Host writes (37400662*32)
    Reallocated sectors : 05 65
    Available Reserved Space : E8 98
    POH 10186
    MD5 OK

    33.34MiB/s on avg (~324 hours)

    --
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  24. #4999
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    Sandisk Extreme G25 - 120gb - Day 49

    Drive hours: 1173
    ASU GiB written: 506,710.51 GiB (494.83 TiB)
    Avg MB/s: 125.81 MB/s (7.19 hours)
    MD5: OK

    Host GB written (F1): 510,518 GiB (498.55 TiB)
    NAND writes (E9): 381,058 GiB (372.13 TiB)

    Retired Block Count (05): 4 raw
    Failure count (AB, AC): 1 program, 1 erase
    Raw Error Rate (01): 109 normalized
    Media Wearout Indicator (E7): 10 normalized
    Wear Range Delta (B1): 3 raw
    Reported Uncorrectable Errors (BB): 0 raw

    Vertex 4 - 50% OP - 128gb - PAUSED

    Drive hours: 101
    ASU GiB written: 61,811.98 GiB (60.36 TiB)
    Avg MB/s: 0 MB/s (0 hours)
    MD5: OK

    Host GB written (E8): 62,941.02 GiB (61.47 TiB, 131996886814 raw)

    Raw Read Error Rate (01): 5 raw
    Reallocated Block Count (05): 0 raw
    Remaining Life (E9): 84 normalised

    I can't seem to keep the vertex 4 out of storage mode. Secure wipe only helped for half an hour or so, then performance dropped again. I'll try a firmware reflash followed by another secure wipe. See if that helps.

    Strange thing is that it ran fine for 3 days .....

    If I can't get this working right, I may need to abandon breaking this V4 ... which would mean I would need to go find another victim in its place.

  25. #5000
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    So, having secure erased it performs as expected in benchmarks?

    Can you get it to perform in benchmarks once it has entered the so called storage-mode. (by normal means, like, i.e. by trimming a large file,...)
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