SSD Write Endurance 25nm Vs 34nm

[Christopher]

Anvil, that really is (matbe not very) surprising. It feels like the previous SFs died almost exactly when they were supposed to. It's strange that they seem to be dying so consistently. I think maybe some proprietary mojo from the Intel, Samsung, and Crucial/Marvells may be missing.

[Anvil]

While it's a bit disappointing I prefer being warned about the failure.

In 30 minutes, available reserved space went from 9 to 7 so it might enter read-only mode sometime within the next few hours. (it's midnight here)

Maybe this is the one that behaves as expected wrt read-only mode

[Christopher]

Who knows? Seeing a RO SSD is like seeing a unicorn -- there isn't much reason to believe they actually exist. I'm not saying its dissappointing, just that it isn't too different. SF is supposed to hit RO at MWI 1, which is why it stops at 10. I also know that the Intel and SF FW report reallocations much differently.

[Anvil]

We'll know in a few hours, it's already at 1. (available reserved space)

[Anvil]

There looks to be a bug with available reserved space.

It's back to 100 so it looks to continue but like some of the other SF drives, speed is increasing as it wears out so the signs of a dying drive are still there.

ASR did not correlate to the movements of any other SMART attribute so I suspected something was wrong, anyways, it carries on writing.

--

Intel 330 120GB

760.52TB Host writes
2.63TiB Host reads
Reallocated sectors : 05 387 +82
Available Reserved Space : E8 100 "-27"
MWI 9
[B5] Program fail count 186
[B6] Erase fail count 201
[F1] Total LBAs Written 24920807
[F2] Total LBAs Read 86201
[F9] Total NAND Writes 549015GB // ~536TiB
POH 1824
MD5 OK

126.35MiB/s on avg (~9 hours)

--

Kingston SSDNow 40GB (X25-V)

1184.51TB Host writes (38814090*32)
Reallocated sectors : 05 73 +1
Available Reserved Space : E8 98
POH 10559
MD5 OK

33.57MiB/s on avg (~9 hours)

[canthearu]

Sandisk Extreme G25 - 120gb - Day 65

Drive hours: 1495
ASU GiB written: 646,449.96 GiB (631.30 TiB)
Avg MB/s: 125.68 MB/s (45.97 hours)
MD5: OK

Host GB written (F1): 651,060 GiB (635.80 TiB)
NAND writes (E9): 486,014 GiB (474.62 TiB)

Retired Block Count (05): 4 raw
Failure count (AB, AC): 1 program, 1 erase
Raw Error Rate (01): 110 normalized
Media Wearout Indicator (E7): 10 normalized
Wear Range Delta (B1): 3 raw
Reported Uncorrectable Errors (BB): 0 raw

So the Intel 330 said "haha, fooled ya :P". Intel seems to have botched the ASR counter in the sandforce firmware, although I haven't seen any sandforce drive go through bad block death yet to verify that the Retired Block count Normalized values work correctly either.

[Christopher]

I bet the 330's counter cycles twice before it dies. I contend it's not about erase failures as much as read failures anyway, until you have no ARS left.

[Anvil]

I wish it was

There is no change to ARS, it's still at 100.

MWI is at 9, will take another week or so for it to either stop "working" (0) or possibly restart at 100.

[Christopher]

The M3P went through almost 3GB of flash, but it was the read failures that killed it -- along with every OCZ, and probably a couple other drives too.

[Christopher]

Samsung 830 256GB Day 140

(GiB) 3,495,821
(TiB) 3,413
(PiB) 3.35


(Avg) 297.61 MB/s

(B1) Wear Leveling Count: 15,138

(B6) Erase Fail Count: 9
(05) Reallocated Sectors: 36864
(POH) 3456


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

[Christopher]

Samsung 830 256GB Day 141

(GiB) 3,541,007
(TiB) 3,458
(PiB) 3.40


(Avg) 297.53 MB/s

(B1) Wear Leveling Count: 15,333

(B6) Erase Fail Count: 9
(05) Reallocated Sectors: 36864
(POH) 3500


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

[B.A.T]

Here are todays update:

m4
1382.3581 TiB
5734 hours
Avg speed 74.55 MiB/s.
AD 94 to 77
P/E 23748.
C3 4457 to 4647
CE 58
MD5 OK.
Reallocated sectors : 00


Intel X25-M G1 80GB
856.49 TiB
25020 hours
Reallocated sectors : 8 to 188
Available Reserved space: 22 to 11
MWI= 104 to 68
MD5 =OK
26.16 MiB/s on avg


Intel X25-E 64GB
702.41 TiB
2201-30=2171 hours
Reallocated sectors : 7 to 27
Available Reserved space: 99
MWI= 95
MD5 =OK
91.60 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 20 more reallocated sectors. The m4 just steams on.

[Chrysalis]

Wow this is great for you guys to tackle ssd endurance. Not many sites pay attention to this at all and it makes me very glad I chose a samsung 830 as well. Although mine is 128gig not 256gig model.

[l0ud_sil3nc3]

^love checking this thread

[canthearu]

Sandisk Extreme G25 - 120gb - Day 68

Drive hours: 1566
ASU GiB written: 678,050.50 GiB (662.16 TiB)
Avg MB/s: 125.69 MB/s (117.42 hours)
MD5: OK

Host GB written (F1): 682,819 GiB (666.82 TiB)
NAND writes (E9): 509,731 GiB (497.78 TiB)

Retired Block Count (05): 4 raw
Failure count (AB, AC): 1 program, 1 erase
Raw Error Rate (01): 115 normalized
Media Wearout Indicator (E7): 10 normalized
Wear Range Delta (B1): 3 raw
Reported Uncorrectable Errors (BB): 0 raw

[canthearu]

Sandisk Extreme G25 - 120gb - Day 70

Drive hours: 1616
ASU GiB written: 699,914.35 GiB (683.51 TiB)
Avg MB/s: 125.20 MB/s (167.61 hours)
MD5: OK

Host GB written (F1): 704,792 GiB (688.27 TiB)
NAND writes (E9): 526,156 GiB (513.82 TiB)

Retired Block Count (05): 4 raw
Failure count (AB, AC): 1 program, 1 erase
Raw Error Rate (01): 117 normalized
Media Wearout Indicator (E7): 10 normalized
Wear Range Delta (B1): 4 raw
Reported Uncorrectable Errors (BB): 0 raw

[Christopher]

Samsung 830 256GB Day 144

(GiB) 3,609,534
(TiB) 3,524
(PiB) 3.46


(Avg) 296.75 MB/s

(B1) Wear Leveling Count: 15,629

(B6) Erase Fail Count: 9
(05) Reallocated Sectors: 36864
(POH) 3558

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

[B.A.T]

Here are todays update:

m4
1399.5832 TiB
5801 hours
Avg speed 74.54 MiB/s.
AD 77 to 67
P/E 24041.
C3 4647
CE 58
MD5 OK.
Reallocated sectors : 00


Intel X25-M G1 80GB
861.79 TiB
25087 hours
Reallocated sectors : 188 to 255 to 20
Available Reserved space: 11 to 6
MWI= 68 to 44
MD5 =OK
25.61 MiB/s on avg


Intel X25-E 64GB
723.57 TiB
2268-30=2238 hours
Reallocated sectors : 27 to 37
Available Reserved space: 99 to 98
MWI= 95
MD5 =OK
91.53 MiB/s on avg


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

The G1 is now very close to 1% spare area. Just hope I get home in time....

[Dr. Vodka]

So, the samsung 830 seems to go on and on, it just won't give up! I am considering upgrading to a SSD and seeing the 830 withstand the torture like that... I think I know what I'll buy.

Great thread!

[Christopher]

Samsung 830 256GB Day 146

(GiB) 3,643,414
(TiB) 3,558
(PiB) 3.50


(Avg) 296.16 MB/s

(B1) Wear Leveling Count: 15,776

(B6) Erase Fail Count: 9
(05) Reallocated Sectors: 36864
(POH) 3603

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

We're 7/8ths of the way to 4PiB

[B.A.T]

Here are todays update:

m4
1408.0741 TiB
5834 hours
Avg speed 74.53 MiB/s.
AD 67 to 62
P/E 24186.
C3 4647
CE 58
MD5 OK.
Reallocated sectors : 00


Intel X25-M G1 80GB
864.35 TiB
25120 hours
Reallocated sectors : 20 to 74
Available Reserved space: 6 to 2
MWI= 44 to 38
MD5 =OK
25.34 MiB/s on avg


Intel X25-E 64GB
734.02 TiB
2301-30=2271 hours
Reallocated sectors : 37 to 42
Available Reserved space: 98
MWI= 95
MD5 =OK
91.49 MiB/s on avg


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

Getting closer.....

[canthearu]

Don't worry bat, the Intel drive will probably chug on for a while longer ... because running out of avaliable reserved space never stopped the old 40gig Intel 320.

[canthearu]

Sandisk Extreme G25 - 120gb - Day 72

Drive hours: 1662
ASU GiB written: 719,753.27 GiB (702.88 TiB)
Avg MB/s: 125.12 MB/s
MD5: OK

Host GB written (F1): 724,730 GiB (707.74 TiB)
NAND writes (E9): 541,054 GiB (528.37 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

[nster]

Hey, I need an SSD for the server/WS that I am building. I only need 60GB at most, I do intend to manually over provision between 20-30%, perhaps 50% for the heck of it if the drive is 200GB+

My budget is 300$, I want this SSD to last as long as possible. If it doesn't last 10 years It's garbage for me. At the same time, I don't want to be spending useless $$. If a simple intel 520 120GB SSD will do, that's nice. but if a 256GB 520 or samsung 830 or Crucial M4 would be significantly better, why not. What would you recommend?

[Hopalong X]

Hey, I need an SSD for the server/WS that I am building. I only need 60GB at most, I do intend to manually over provision between 20-30%, perhaps 50% for the heck of it if the drive is 200GB+

My budget is 300$, I want this SSD to last as long as possible. If it doesn't last 10 years It's garbage for me. At the same time, I don't want to be spending useless $$. If a simple intel 520 120GB SSD will do, that's nice. but if a 256GB 520 or samsung 830 or Crucial M4 would be significantly better, why not. What would you recommend?

Scroll up this page to Post #5095.

Samsung 830 256MB with 3.5PiB of writes... so far. That should do the trick.
They are about $200US at Newegg. They have been on sale for under $200.