SSD Write Endurance 25nm Vs 34nm

[canthearu]

Intel 520 60GB - Day 113

Drive hours: 2,656
ASU GiB written: 846,078.81 GiB (826.25 TiB)
Avg MB/s: 93.56 MB/s (212 hours)
MD5: OK

Host GB written (F1): 852,053.00 GiB (832.08 TiB, 27265696 raw)
NAND writes (F9): 603,186 GiB (589.05 TiB)

Reallocated sectors (05): 0
Failure count (AB, AC): 0 program, 0 erase
Raw Error Rate (8B): 104 normalized
Available Reserved Space (AA): 100 normalized
Media Wearout Indicator (E9): 1

Sandisk Extreme G25 - 120gb - Day 13

Drive hours: 310
ASU GiB written: 131,544.24 GiB (128.46 TiB)
Avg MB/s: 121.56 MB/s (212 hours)
MD5: OK

Host GB written (F1): 132,426 GiB (129.32 TiB)
NAND writes (E9): 98,775 GiB (96.46 TiB)

Retired Block Count (05): 4 raw
Failure count (AB, AC): 1 program, 1 erase
Raw Error Rate (01): 105 normalized
Media Wearout Indicator (E7): 76 normalized
Wear Range Delta (B1): 4 raw
Reported Uncorrectable Errors (BB): 0 raw

[canthearu]

Intel 520 60GB - Day 114

Drive hours: 2,681
ASU GiB written: 854,340.34 GiB (834.32 TiB)
Avg MB/s: 93.53 MB/s (237 hours)
MD5: OK

Host GB written (F1): 860,355.69 GiB (840.19 TiB, 27531382 raw)
NAND writes (F9): 609,064 GiB (594.79 TiB)

Reallocated sectors (05): 0
Failure count (AB, AC): 0 program, 0 erase
Raw Error Rate (8B): 104 normalized
Available Reserved Space (AA): 100 normalized
Media Wearout Indicator (E9): 1

Sandisk Extreme G25 - 120gb - Day 14

Drive hours: 335
ASU GiB written: 142,234.58 GiB (138.90 TiB)
Avg MB/s: 121.58 MB/s (237 hours)
MD5: OK

Host GB written (F1): 143,170 GiB (139.81 TiB)
NAND writes (E9): 106,775 GiB (104.27 TiB)

Retired Block Count (05): 4 raw
Failure count (AB, AC): 1 program, 1 erase
Raw Error Rate (01): 105 normalized
Media Wearout Indicator (E7): 73 normalized
Wear Range Delta (B1): 3 raw
Reported Uncorrectable Errors (BB): 0 raw

@Anvil: can you change ASU so that it reads the file for MD5 checking off the disk, rather then out of memory cache. My endurance computer has 8gig RAM so reading in the file for MD5 checking just seems to be checking my memory rather then the disk! Since I fixed my memory a while back, it probably won't find any faults there!

I've just been noticing that the total host reads haven't been increasing on my drives at all! Running HDD-scan though (while ASU is running) does seem to increase the host reads like it should

[Anvil]

@Anvil: can you change ASU so that it reads the file for MD5 checking off the disk, rather then out of memory cache. My endurance computer has 8gig RAM so reading in the file for MD5 checking just seems to be checking my memory rather then the disk! Since I fixed my memory a while back, it probably won't find any faults there!

I've just been noticing that the total host reads haven't been increasing on my drives at all! Running HDD-scan though (while ASU is running) does seem to increase the host reads like it should

I'll check out whats going on, might be why there's been virtually no change to F2 on the 330.

The Kingston has added 2 re-allocated sectors. (in 6-7 hours)

[canthearu]

Intel 520 60GB - Day 117

Drive hours: 2,753
ASU GiB written: 878,292.56 GiB (857.70 TiB)
Avg MB/s: 93.37 MB/s (3 hours)
MD5: OK (verified off disk now)

Host GB written (F1): 884,428.22 GiB (863.70 TiB, 28301703 raw)
NAND writes (F9): 626,106 GiB (611.43 TiB)

Reallocated sectors (05): 0
Failure count (AB, AC): 0 program, 0 erase
Raw Error Rate (8B): 116 normalized
Available Reserved Space (AA): 100 normalized
Media Wearout Indicator (E9): 1

Sandisk Extreme G25 - 120gb - Day 17

Drive hours: 408
ASU GiB written: 173,413.05 GiB (169.35 TiB)
Avg MB/s: 123.36 MB/s (3 hours)
MD5: OK (verified off disk now)

Host GB written (F1): 174,517 GiB (170.43 TiB)
NAND writes (E9): 130,157 GiB (127.11 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): 67 normalized
Wear Range Delta (B1): 4 raw
Reported Uncorrectable Errors (BB): 0 raw

Edit: The Sandisk extreme MWI value seems to be tracking very close to the MWI on the Corsair Force 3. The sandisk seems to be controlling wear range delta much better though ... which could be an advantage at endgame!

http://www.xtremesystems.org/forums/...=1#post4967340

[canthearu]

The Intel 520 is dead at day 118

Drive just panic locked without warning at 9:43am on the 23/6/2012. Attempts to resurrect it by plugging it into other computers have failed.

Final Stats:

Drive hours: 2,765
Host GB written (F1): 888,488.78 GiB (867.66 TiB, 28431641 raw)
NAND writes (F9): 628,987 GiB (614.25 TiB)

Reallocated sectors (05): 0
Failure count (AB, AC): 0 program, 0 erase
Raw Error Rate (8B): 116 normalized
Available Reserved Space (AA): 100 normalized
Media Wearout Indicator (E9): 1

While I did expect a bit more from the Intel 520, I guess this isn't a terrible result.

[canthearu]

Sandisk Extreme G25 - 120gb - Day 20

Drive hours: 478
ASU GiB written: 203,794.93 GiB (199.02 TiB)
Avg MB/s: 122.44 MB/s (56.11 hours)
MD5: OK (verified off disk now)

Host GB written (F1): 205,050 GiB (200.24 TiB)
NAND writes (E9): 152,940 GiB (149.36 TiB)

Retired Block Count (05): 4 raw
Failure count (AB, AC): 1 program, 1 erase
Raw Error Rate (01): 112 normalized
Media Wearout Indicator (E7): 61 normalized
Wear Range Delta (B1): 4 raw
Reported Uncorrectable Errors (BB): 0 raw

[canthearu]

Sandisk Extreme G25 - 120gb - Day 23

Drive hours: 549
ASU GiB written: 234,306.45 GiB (228.81 TiB)
Avg MB/s: 122.47 MB/s (127 hours)
MD5: OK (verified off disk now)

Host GB written (F1): 235,714 GiB (230.19 TiB)
NAND writes (E9): 175,824 GiB (171.70 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): 54 normalized
Wear Range Delta (B1): 4 raw
Reported Uncorrectable Errors (BB): 0 raw

[canthearu]

Sandisk Extreme G25 - 120gb - Day 27

Drive hours: 644
ASU GiB written: 275,146.93 GiB (268.70 TiB)
Avg MB/s: 125.25 MB/s (81 hours)
MD5: OK (verified off disk now)

Host GB written (F1): 276,758 GiB (270.27 TiB)
NAND writes (E9): 206,453 GiB (201.61 TiB)

Retired Block Count (05): 4 raw
Failure count (AB, AC): 1 program, 1 erase
Raw Error Rate (01): 119 normalized
Media Wearout Indicator (E7): 46 normalized
Wear Range Delta (B1): 3 raw
Reported Uncorrectable Errors (BB): 0 raw



Sorry about not doing more updates .... the sandisk is kinda being boring right now (but speed is up a bit)

[canthearu]

Sandisk Extreme G25 - 120gb - Day 29

Drive hours: 695
ASU GiB written: 297,684.34 GiB (290.71 TiB)
Avg MB/s: 125.22 MB/s (132.43 hours)
MD5: OK (verified off disk now)

Host GB written (F1): 299,407 GiB (292.39 TiB)
NAND writes (E9): 223,362 GiB (218.13 TiB)

Retired Block Count (05): 4 raw
Failure count (AB, AC): 1 program, 1 erase
Raw Error Rate (01): 119 normalized
Media Wearout Indicator (E7): 41 normalized
Wear Range Delta (B1): 4 raw
Reported Uncorrectable Errors (BB): 0 raw