SSD Write Endurance 25nm Vs 34nm

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

Plextor M3P 128GB Day 3

72,655.01 GiB
70.95 TiB

273.05 MB/s Average

72 Hours

Rellocated Event Count 0

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

Samsung 830 256GB Day 73

1,732,685.11 GiB
1,692.07 TiB

300.05 MB/s Average
1717 Hours

7525 Wear Leveling Count
MWI 1

6/0 Erase/Program Fail
Used Reserved Block Count: 12/24572 sectors

Attachment 127221
--------------------------------------------

The pace of both drives is really phenomenal. We'll see where the 830 ends up after more than 72 hours, but switching both drives into the other rig seems to have resulted in tangible and worthwhile performance increases. The top current speeds are just higher, resulting in higher averages.

The 830 was only doing 282 MB/s Avg four days ago. An extra 20MB/s is nothing to sneeze at.

EDIT
10,000 PE cycles on the Plextor would probably be somewhere around 1.09PiB

The M3P is already ahead of the 330, if it can keep up the pace until the end I'd be impressed.

I wonder if there are plans on using IMFT 5K NAND, would be very interesting on a Plextor.

The forum doesn't allow for searches of three characters, does anyone know/remember if the Intel 320 series (preferably 120 GB) was tested here?

Intel 330 120GB

66.96TB Host writes
Reallocated sectors : 05 0
Available Reserved Space : E8 100
MWI 94
[F1] Total LBAs Written 2194022
[F2] Total LBAs Read 22623 // no movement
[F9] Total NAND Writes 48334GB
POH 191
MD5 OK

122.68MiB/s on avg (~95 hours)

--

Kingston SSDNow 40GB (X25-V)

995.75TB Host writes
Reallocated sectors : 05 46
Available Reserved Space : E8 99
POH 8916
MD5 OK

33.59MiB/s on avg (~95 hours)

Quote:

---

Originally Posted by [XC] Oj101

The forum doesn't allow for searches of three characters, does anyone know/remember if the Intel 320 series (preferably 120 GB) was tested here?

---

It was one of the original drives that started this test.
One_Hertz tested a 320 40GB, a great drive, my drive outlasts it but that's 34nm NAND for you.

You'll find a bit of info in the first post, it failed this January at 685TiB written, outstanding performance imho :)

Todays update:
I got a big update today.

First:
I got the Mtron from GullLars today. I'll be start testing it in a couple of days after I've done some maintenace on my rig. I'll post some screenshots tomorrow.

Second:
I updated some drivers on the rig today and a round of windows update. After the restart I noticed that the icon for the ASU G1 was strange. Trying to open it failed and when I looked at the ssd I got this error message.

http://www.diskusjon.no/index.php?ap...tach_id=492524

Checking CDI I the G1 was still being detected but available reserved space had dropped from 90 til 89 and reallocated sectors gone from 163 to 169.
http://www.diskusjon.no/index.php?ap...tach_id=492523

In disk management the ssd is shown as unformated and I had to format it to make it work again.
http://www.diskusjon.no/index.php?ap...tach_id=492522

I copied back all the files and the correct setings for ASU. Since all data was lost I have to relay on host write in smart to keep track of writes.
Before I started up ASU I checked CDI and now a lot had happend. Available reserved space had dropped from 89 to 78 and reallocated sectors had dropped from 169 to 73.
I refreshed CDI and while I looking at it the value increases. I adjusted smartlog to update every minute and here are the change and the time. I removed all timeslots that didn't change.

09:57:31.203 163
10:28:08.472 166
10:31:03.354 169
11:21:12.077 73
11:22:12.824 81
11:23:13.617 86
11:24:16.719 86
11:25:19.119 90
11:26:18.134 94
11:28:20.517 95
11:29:21.247 97
11:32:25.219 98
11:44:36.236 100
11:47:38.179 103

Looks like I took a out a big chunck of blocks but why this strange behavior on the reallocated sectors I have no explanation for. I think the next days will be exciting if the G1 continues or looses more sectors.

m4
968.9236 TiB
4082 hours
Avg speed 74.50 MiB/s.
AD gone from 59 to 55
P/E 16710.
MD5 OK.
Reallocated sectors : 00
http://www.diskusjon.no/index.php?ap...tach_id=492530

Intel X25-M G1 80GB
666.52 TiB
23392 hours
Reallocated sectors : 163 to 163 to 73 to 103
Available Reserved space: 90 to 89 to 78
MWI=124 to 116
MD5 =OK
43.81 MiB/s on avg
http://www.diskusjon.no/index.php?ap...tach_id=492529

Intel X25-E 64GB TiB skrevet med en snittfart på MiB/s. SSDen er testet i (
157.16 TiB
480-30=450 hours
Reallocated sectors : 0
Available Reserved space: 100
MWI=99 to 98
MD5 =OK
99.71 MiB/s on avg
http://www.diskusjon.no/index.php?ap...tach_id=492531

Finally the E changes mwi from 99 to 98. It happened at 152,3694 TiB according to smartlog. It means that mwi=1 will happen at almost 15 PiB.....:shocked: :shrug:

What happened with the G1 (I think) is that the counter wrapped around from 255 back to 0,

So reallocated sectors is now 103+256 = 359. But the G1 is looking a bit hurt ... showing same sort of symptoms as my Torqx 2 did.

I wonder why I lost all data on the G1. That was the strangest thing...

That is exciting, B.A.T. I wonder if maybe the drive dropped too many blocks at one time and the drive couldn't recover them, corrupting the partition (??)

The Intels don't keep track or read/erase/program failures unfortunately.


What kind of MTRON are you doing?

It looks like it. I think I'll do an retention test at 700 TiB to see whats going on.

It's the brother of the last Mtron I tried. GullLars had two i r0. It's a MTRON Pro SSD 32GB

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

Plextor M3P 128GB Day 4

96,000.12 GiB
93.75 TiB

274.34 MB/s Average

96 Hours

Rellocated Event Count 0
Attachment 127252

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

Samsung 830 256GB Day 74

1,757,421.07 GiB
1,716.38 TiB

303.08 MB/s Average
1741 Hours

7632 Wear Leveling Count
MWI 1

6/0 Erase/Program Fail
Used Reserved Block Count: 12/24572 sectors

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

The combined average speed for both drives is 577.42MB/s. That's a not inconsiderable amount of data going through the board every second.

Wow, I was just thinking to myself that the 830 had gone awhile without another block fail, and lo! 45 seconds later, another went bad.

7 Erase Fails, 7 runtime total blocks used, 28672 Reallocated Sector Count

That's 14MiB if you're keeping score at home (out of 262,144 MiB on the drive).

Intel 520 60GB - Day 98

Drive hours: 2,298
ASU GiB written: 729,146.54 GiB (712.06 TiB)
Avg MB/s: 93.07 MB/s
MD5: OK

Host GB written (F1): 734,281.25 GiB (717.07 TiB, 23497000 raw)
NAND writes (F9): 519,818 GiB (507.63 TiB)

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

On the topic of data retention .... it is time for a retention test on my Intel 520 ... It has exceeded 500TiB in NAND writes (approx 8k NAND cycles). Will be off and disconnected for 3 days.

canthearu
Thanks for the update!
Could be an exciting 3 days :)

B.A.T
A few reboots per month might catch such issues earlier, I reboot once a month and often as a result of the Tuesday windows updates.
The G1 is really getting some beating, no TRIM no nothing, wouldn't surprise me at all if it start showing signs of weakness.
(or maybe it's the curse of the MTRON ;))

I'll post an update later tonight, the X25-V is very close to 1PB, 8-9 hours or so.

Attachment 127261

Plextor released new firmware for M3s, 1.04.. not much info what it changes

http://www.goplextor.com/asia/index....gory&catid=147

EDIT: ok i think i found it..
http://www.abload.de/img/desktop_2012_05_31_20z87ou.png

Guys, I know this would be a pain, but would it be possible to compile a chart of all the drives tested since the inception of this thread?

Quote:

---

Originally Posted by Kain665

Guys, I know this would be a pain, but would it be possible to compile a chart of all the drives tested since the inception of this thread?

---

There is a chart of the past drives in the first thread, right above a chart of the current drives.

Christopher, I have a Samsung 830 256GB and have been following this thread closely in recent days... Would it be safe to say that the MWIs for most of these drives are 1. arbitrarily chosen by the manufacturers and 2. extremely conservative based on these endurance tests? Also, how far do you think the 830 will go given the current low error count? 3 PBs? 10 or more PBs?

I had been using a 160GB Intel X-25M G2 since 2009 and calculated that on average I was writing roughly 6-7GB per day over the period of a couple years (I mostly use it for documents and web surfing and some light gaming, hibernation/hybrid sleep is off, it's on for about 8 hours out of every 24, with maybe 4 days off per month average.)

I expect usage for my Samsung 830 to be about the same. Assuming that I'll write 7GB per day, and that I can get roughly 2PB of writes out of this drive (which currently appears extremely likely), it would work out to ~820(!) years of usage.

Now, I get that for enterprise workloads like database work you might be doing a whole lot more writing, but even if you turned over the entire drive (238GB) every day, you'd still get around 24 years of use out of this drive, (again, assuming it craps out at 2PB.) I'd have to be writing at least a terabyte every single day to ever get close to thinking about this wearing out in a reasonable technology upgrade timeframe. My guess is that 99.9% of these drives will inevitably end up in a landfill due to obsolescence with only a small fraction of their writes ever being used.

Todays update:

m4
974.8412 TiB
4105 hours
Avg speed 74.58 MiB/s.
AD gone from 55 to 52
P/E 16810.
MD5 OK.
Reallocated sectors : 00
http://www.diskusjon.no/index.php?ap...tach_id=492620

Intel X25-M G1 80GB
669.92 TiB
23416 hours
Reallocated sectors : 103 to 104
Available Reserved space: 78
MWI= 116 to 114
MD5 =OK
43.07 MiB/s on avg
http://www.diskusjon.no/index.php?ap...tach_id=492621

Intel X25-E 64GB
165.15 TiB
504-30=474 hours
Reallocated sectors : 0
Available Reserved space: 100
MWI= 98
MD5 =OK
100.12 MiB/s on avg
http://www.diskusjon.no/index.php?ap...tach_id=492619

I'll update you on the Mtron in 30 min. Need to check something first.

@Anvil
The last reboot was when I entered the E into the test-rig. Maybe the Mtron jinxed it :D Everything looks normal no so we'll just have to wait and see.

Mtron Pro 32GB SLC

Here are the smartvalues
Attachment 127266

The nand
Attachment 127267

The controller
Attachment 127268

And the spec
Link Link

I need some help to translate the raw value in total erase count.

B.A.T

Record the raw value before and after writing a 1GB file.
(ASUs sequential [4MB seq] test will do that)

Two SLCs :)
I hope the MTron behaves this time

--

It's getting close.
Attachment 127269

(a bit busy downloading the new stuff from MS but will post an update when it gets past 1PB)

Gordo,

The MWI for most drives is extremely conservative, but that helps take into account the fact that some drives will not make it as far as other drives (if you had two identical drives, under an identical workload, they probably wouldn't die at exactly the same time). The way PE cycle ratings are generated is extremely pessimistic, and a little arbitrary, but there are reasons they do it that way.

For a 830 only using 1 PE cycle a day (based on ~3600 PE cycles) it would take 9.8 years give or take to get to MWI 1. It's unrealistic to expect the drive to last that long though, as generally speaking, it's going to be something else that kills the drive.

I would hate to venture how far my 256GB 830 will go, I've pretty much been wrong on every prediction in the past. The 830 has been slowly marking blocks as bad, and that's a good thing. That means its doing what it's supposed to. What you don't want to see is many reallocations occurring within a short period of time - you want them to be spread out. The 256GB 830 used 107 PE cycles yesterday. The 128GB Plextor M3P I'm also testing writes almost as many GB per day, but it uses almost 2x the PE cycles. So all other things being equal, the M3P 128GB should die ~2x as fast. There are many other variables, making it hard to tell for certain -- that's why I'm testing them.

You never know.



I would say that the G2 Intel and the Samsung 830 aren't going to be obsolete any time soon. And if people are going to be dumping them in landfills in a couple years mostly unused, I wish someone would tell me first ;)

Thanks Anvil. I'll try that in the weekend. First I need to do an SE and some maintenace on my rig. I run the benchmark and got good read numbers but write was far off.

Almost there with the V. I'll pass 1 PiB in late sunday or early monday.

B.A.T. --

I'm excited -- I love those damn irritating MTRONs.


The erase count is literally the number of erases (I think it's in 1MB chunks). My 16GB MTRONS would decrease MWI around every 15 000 000 RAW. Unfortunately, because the drive is always doing GC and wear leveling the number is always increasing even if you're not writing to it. You could fill the drive to 100% look at before and after SMART shots, then erase the drive. The Samsung 51nm SLC is rated for 100K PE cycles, so 1 MWI should be 1000 PE cycles. 1000 * 32 768 MB = 32 768 000. Something like that, anyway.

The maximum raw value is 3 200 000 000 for the 32GB, should be 1 600 000 000 for the 16GB (but I have no way of verifying what the hell happens when you get that far).

Your drive is probably ~98.4 MWI if you want to think about it that way.

Writing a 1GB file to the PRO isn't going to tell you all that much. If you do it a couple times, it will be different each time.

I also think I have the .18R FW for your drive, but I would avoid flashing it like the plague. It's not like 4K RWs are going to skyrocket from 0.45MB/s to 0.50MB/s. But I get 46MB/s QD1 Random Reads with my PROs though. So that's nice, and you should be able to get a high avg speed.

Intel 330 120GB

82.64TB Host writes
Reallocated sectors : 05 0
Available Reserved Space : E8 100
MWI 92
[F1] Total LBAs Written 2707960
[F2] Total LBAs Read 22623 // no movement
[F9] Total NAND Writes 59652GB
POH 228
MD5 OK

122.70MiB/s on avg (~132 hours)

--

Kingston SSDNow 40GB (X25-V)

1000.01TB Host writes
Reallocated sectors : 05 46
Available Reserved Space : E8 99
POH 8953
MD5 OK

33.49MiB/s on avg (~132 hours)