SSD Write Endurance 25nm Vs 34nm

[Zaxx]

Almost 4PB....that's damn impressive. Would love to see more 256GB drives get put to the test. It'd also be interesting to see how the 128GB 830 fairs to see just how much of an advantage the increased nand amount actually yields...or close to it maybe.

[Christopher]

The M4 and the 830 are the 6gbps drives you want if you like writing a lot of data. Interestingly, the 64GB M4 and the 256GB 830 are about identical in terms of avg speed/capacity. Coincidence? Perhaps, but I don't think you'd have an issue getting 1.5PB on a 64GB 830 either.

[Kain665]

Yes, Coincidence. They're just well built drives, I doubt Samsung and Micron would be sharing anything with each other.

[Christopher]

Yes, Coincidence. They're just well built drives, I doubt Samsung and Micron would be sharing anything with each other.

No, I mean, if the 830 is 4x larger and 4x faster than the m4, perhaps they have equal amounts of recovery time and this is a large part of their success. It could just be their proprietary nand management techniques. It could be lots of things, but if you own a fab and have a proprietary controller (the M4's Marvell is pretty much their own controller in the end), you should be able to make a drive that lasts a long, long time.

[B.A.T]

Been a while since my last update. My holyday is over and I get more time to have fun here

Here are todays update:

m4
1487.5670 TiB
6148 hours
Avg speed 74.24 MiB/s.
AD 59 to 17
P/E 25552.
C3 4647 to 5683
CE 58
MD5 OK.
Reallocated sectors : 00


Intel X25-M G1 80GB .
882.42 TiB
25434 hours
Reallocated sectors : 107 to 255 to 74
Available Reserved space: 0 to 59 to 31
MWI= 38 to 255 to 233
MD5 =OK
21.65 MiB/s on avg


Intel X25-E 64GB
830.36 TiB
2615-30=2585 hours
Reallocated sectors : 48 to 148
Available Reserved space: 98 to 95
MWI= 95 to 94
MD5 =OK
90.48 MiB/s on avg


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

The G1 decided that it had some more spare area hidden so the counter went from 0 to 59 and started to count down again. Very strange behaviour.
The m4 just keeps going and going and going.... Not much change just a little more cumulative corrected ecc.

[canthearu]

What does concern me is the number of bad sectors on that SLC drive ....

[B.A.T]

That suprised me too. It burns through sectors at the same rate the G1 did in the begining.

[Kain665]

No, I mean, if the 830 is 4x larger and 4x faster than the m4, perhaps they have equal amounts of recovery time and this is a large part of their success. It could just be their proprietary nand management techniques. It could be lots of things, but if you own a fab and have a proprietary controller (the M4's Marvell is pretty much their own controller in the end), you should be able to make a drive that lasts a long, long time.

Agreed.

[Christopher]

Samsung 830 256GB Day 159

(GiB) 3,989,792
(TiB) 3,896
(PiB) 3.83


(Avg) 297.73 MB/s over the past 1200+ hours

(B1) Wear Leveling Count: 17,267

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


(POH) 3932


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

I'm starting to get the feeling that this 830 might not ever die. Perhaps there is a critical point of wear beyond which the drive starts degrading rapidly? I can only hope.

[sergiu]

Maybe it is the error correction that makes the difference. Drives with weak error correction implementation will show a gradual increase of bad sectors, just like Intel G1 while those with a strong one will have a fast degradation at the end. Probably the lack of a complex ECC in X25-E 64GB (at least not as complex as in the MLC drives) is forcing it to mark bad blocks faster.

[canthearu]

Sandisk Extreme G25 - 120gb - Day 86

Drive hours: 2002
ASU GiB written: 855,241.02 GiB (835.20 TiB)
Avg MB/s: 125.53 MB/s (100.03 hours)
MD5: OK

Host GB written (F1): 860,890 GiB (840.71 TiB)
NAND writes (E9): 642,808 GiB (627.74 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): 4 raw
Reported Uncorrectable Errors (BB): 0 raw

[Christopher]

Samsung 830 256GB Day 160

(GiB) 4,012,542
(TiB) 3,918
(PiB) 3.85


(Avg) 297.75 MB/s over the past 1200+ hours

(B1) Wear Leveling Count: 17,365

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

(POH) 3953


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

[A||uSiOn]

Hey guys,

Think we can get a graph done with all drives that have been tested and at what point they died? and the fact I want to see the Samsung 830 at 4PB

[Zaxx]

The first page of the thread has most of what you're looking for. Anvil will occasionally post a current report for drives currently being run thru the ringer.

[B.A.T]

Here are todays update:

m4
1502.8526 TiB
6209 hours
Avg speed 74.13 MiB/s.
AD 17 to 8
P/E 25818.
C3 5683 to 6349
CE 58
MD5 OK.
Reallocated sectors : 00


Intel X25-M G1 80GB
883.15 TiB
25495 hours
Reallocated sectors : 74 to 202
Available Reserved space: 31 to 24
MWI= 233 to 1
MD5 =OK
20.25 MiB/s on avg


Intel X25-E 64GB
848.63 TiB
2676-30=2646 hours
Reallocated sectors : 148 to 172
Available Reserved space: 95 to 94
MWI= 94
MD5 =OK
90.18 MiB/s on avg


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

When I took the screendump of the ASU G1 the program was slow and felt non-responsive. I had to wait 4-5 sec before I could save the screendump. I think something might happen this weekend so I'll check up on it more often then normal.... Exciting

[canthearu]

Sandisk Extreme G25 - 120gb - Day 88

Drive hours: 2049
ASU GiB written: 876,012.60 GiB (855.48 TiB)
Avg MB/s: 125.50 MB/s (147.13 hours)
MD5: OK

Host GB written (F1): 881,765 GiB (861.10 TiB)
NAND writes (E9): 658,408 GiB (642.98 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

[canthearu]

Just a quick chart (because we all love charts)



Edit: Changed Title of Graph to TiB and updated Christopher's drive

[Christopher]

Samsung 830 256GB Day 162

(GiB) 4,074,346
(TiB) 3,978
(PiB) 3.91


(Avg) 298.08 MB/s over the past 1200+ hours

(B1) Wear Leveling Count: 17,631

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

(POH) 4012


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

[canthearu]

Another Graph .. this time Available Space Write Cycles

[B.A.T]

Here are todays update:

m4
1514.4436 TiB
6256 hours
Avg speed 74.08 MiB/s.
AD 8 to 1
P/E 26020
C3 6349 to 7200
CE 58
MD5 OK.
Reallocated sectors : 00


Intel X25-M G1 80GB
883.32 TiB
25542 hours
Reallocated sectors : 202 to 241
Available Reserved space: 24 to 21
MWI= 1 to 255 to 21
MD5 =OK
1.73 MiB/s on avg


Intel X25-E 64GB
862.56 TiB
2722-30=2692 hours
Reallocated sectors : 172 to 193
Available Reserved space: 94
MWI= 94
MD5 =OK
90.03MiB/s on avg


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

The write speed has dropped to around 1 MiB/s on the G1. I think it's not long until it is finished. ASU is still slow and unresponsive but the drive still works and read speed is good.

[B.A.T]

Here are todays update:

m4
1520.7107 TiB
6281 hours
Avg speed 74.04 MiB/s.
AD 1 to 0 to 255 to 254
P/E 26129
C3 7200 to 7561
01 (Raw read error rate) 0 to 2
CE 58
MD5 OK.
Reallocated sectors : 00


Intel X25-M G1 80GB
883.41 TiB
25566 hours
Reallocated sectors : 241 to 255 to 56
Available Reserved space: 21 to 17
MWI= 21 to 0 to 255 to 237
MD5 =OK
1.15 MiB/s on avg


Intel X25-E 64GB
870.04 TiB
2747-30=2717 hours
Reallocated sectors : 193 to 200
Available Reserved space: 94 to 93
MWI= 94
MD5 =OK
89.93 MiB/s on avg


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

The G1 has stabilized at 1 MiB/s but still hangs in there. Just have to wait and see what happens this week. Another development. The m4 has reportet its first raw read error rate. The last time it got these at 600TiB but still no reallocated sectors.

[Anvil]

Hi guys

I've been out of town for a few weeks, my drives are OK but have been idle for some time, I'll get them restarted tomorrow.

I'll catch up the next few days.
(hopefully most drives are still running)

[canthearu]

Sandisk Extreme G25 - 120gb - Day 91

Drive hours: 2119
ASU GiB written: 906,771.14 GiB (885.52 TiB)
Avg MB/s: 125.47 MB/s (216.82 hours)
MD5: OK

Host GB written (F1): 912,676 GiB (891.29 TiB)
NAND writes (E9): 681,522 GiB (665.55 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): 10 normalized
Wear Range Delta (B1): 4 raw
Reported Uncorrectable Errors (BB): 0 raw

[Hopalong X]

Hi guys

I've been out of town for a few weeks, my drives are OK but have been idle for some time, I'll get them restarted tomorrow.

I'll catch up the next few days.
(hopefully most drives are still running)

Well don't let it happen again!

[B.A.T]

Here are todays update with a little sad news:

m4
1523.2666 TiB
6306 hours
Avg speed 75.29 MiB/s.
AD 254 to 250
P/E 26237
C3 7561 to 7907
01 (Raw read error rate) 2 to 3
CE 58 to 90
MD5 OK.
Reallocated sectors : 00


Intel X25-M G1 80GB
883.46 TiB
25576-18632=6944 hours
Reallocated sectors : 56 to 72
Available Reserved space: 17 to 16
MWI= 237 to 235
MD5 =OK
1.17 MiB/s on avg



Intel X25-E 64GB
877.62 TiB
2772-30=2742 hours
Reallocated sectors : 200 to 205
Available Reserved space: 93
MWI= 94
MD5 =OK
89.39 MiB/s on avg


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

At 08:42 this morning the G1 pulled his last breath and went away silently. It just couldn't take any more after 10.5 months of torture. I tried every trick in the book but I can't get it to connect again.

R.I.P Intel X25-M G1 80GB

My plans now is to update the firmware of my Mtron and Vertex 1 and throw them back in the blender