SSD Write Endurance 25nm Vs 34nm

[Anvil]

The 330 is using all 8 channels on the 60/120s.

I've got a few unboxed 520's 120GB, I'll compare it to the 330, if they don't compare it could still be down to different firmwares.
Not sure where the number of channels discussion started or if it ever ended , there also were speculations on 3K NAND which doesn't seem to fit either.

@B.A.T

3rd drive to get past 1PB, not bad

4 drives doesn't leave much room for other than testing (I expect it's doing nothing but testing), with that combination of drives it's probably what your rig can take.

[B.A.T]

7 months of writing and finally I'm at 1 PB. 1 PiB in another 3 days. This m4 has behaved differently than the first. It could either be the upgraded fw or quality of the nand but this one has less reported error than the first and the wa is also lower. The first had 1.06 and this is around 1,004

It's a dedicated rig placed in my basement so it doesn't need to do much else

[Christopher]

4 test drives + a boot device is a lot for one rig to handle. If I start testing some more drives, I'll have to figure out an alternate hardware arrangement.

The M3P and 830 don't seem to be butting heads, but they are slightly slower in the dedicated enterprise rig.

[AMD_Freak]

4 test drives + a boot device is a lot for one rig to handle. If I start testing some more drives, I'll have to figure out an alternate hardware arrangement.

The M3P and 830 don't seem to be butting heads, but they are slightly slower in the dedicated enterprise rig.

that's cuz they are A#1 Drives

[Christopher]

that's cuz they are A#1 Drives

You know, they are badass units.

[B.A.T]

4 test drives + a boot device is a lot for one rig to handle. If I start testing some more drives, I'll have to figure out an alternate hardware arrangement.

At the moment it's 5 ssd in that rig. I use an Intel X25-V 40GB as os-drive. The best thing about the endurance rig is the 6 SATA 6.0 Gb/s ports which makes it easy to test more than 2 at the same time with SATA 6.0 Gb/s

[Christopher]

At the moment it's 5 ssd in that rig. I use an Intel X25-V 40GB as os-drive. The best thing about the endurance rig is the 6 SATA 6.0 Gb/s ports which makes it easy to test more than 2 at the same time with SATA 6.0 Gb/s

I have been contemplating swapping the mobo and CPU out for a newer uATX AMD. I have a couple old AMD Athlon IIs laying about, so I could just get a new board and trade out the H67. If I start testing another 6gbps drive, I'll have to do something and that might be more cost effective.

[B.A.T]

With a 3th 6.0 Gb/s ssd that might be a good idea.

[Anvil]

Not having more than 2x 6Gbs ports is a real pain.
My AMD rig (CHIV) developed some instability that I never was able to fix, I'll have to consider where to start making changes.

On the 330 vs 520 thing, I wasn't able to test the 520 on the same platform where the 330 was tested (it's now running W8) but from what I can see, performance is in favor of the 520, by a small margin.
I tried testing the 330 but wasn't able to get it back to FOB speed by normal means and I won't secure erase it during testing.
I might do an experiment at some point to see if performance can be restored to FOB state.

[kensiko]

The Sandisk Extreme should be very interesting vs the 330

I had expected the Extreme to be a bit faster than the Intel, having said that, I'm positively surprised by the performance of the 330.

Corsair Neutron could be the next one to test, scheduled to be available in July. (new controller)

Just got this one today:

This is after throwing 300GB of data on it.

No, it's not for testing here

[Anvil]

Intel 330 120GB

137.95TB Host writes
Reallocated sectors : 05 0
Available Reserved Space : E8 100
MWI 85
[F1] Total LBAs Written 4520422
[F2] Total LBAs Read 30800 // not much use in this one
[F9] Total NAND Writes 99577GB
POH 359
MD5 OK

122.85MiB/s on avg (~15 hours)

--

Kingston SSDNow 40GB (X25-V)

1015.13TB Host writes
Reallocated sectors : 05 46
Available Reserved Space : E8 99
POH 9085
MD5 OK

33.93MiB/s on avg (~15 hours)

--

kensiko

I've been thinking of that exact drive as I need the space (and they are currently discounted)
What's up with 4K writes at QD1? (a re-run might show normal figures)
Sequentials are looking good.

[kensiko]

What's up with 4K writes at QD1? (a re-run might show normal figures)

No, didn't change a bit. 480GB SSD are slower from the spec. I don't really care, it's fast enough for me. This SSD is used for games and storage, sequential speed is the most important for me in this case.

[canthearu]

Intel 520 60GB - Day 101

Drive hours: 2,373
ASU GiB written: 752,803.39 GiB (735.16 TiB)
Avg MB/s: 93.17 MB/s
MD5: OK

Host GB written (F1): 758,057.09 GiB (740.29 TiB, 24257827 raw)
NAND writes (F9): 536,645 GiB (524.07 TiB)

Reallocated sectors (05): 0
Failure count (AB, AC): 0 program, 0 erase
Raw Error Rate (8B): 120 normalised
Avaliable Reserved Space (AA): 100 normalised
Media Wearout Indicator (E9): 1

Sandisk Extreme G25 - 120gb - Day 1
Drive hours: 24
ASU GiB written: 10,041.75 GiB (9.81 TiB)
Avg MB/s: 120.13 MB/s
MD5: OK

Host GB written (F1): 10,185 GiB (9.95 TiB)
NAND writes (E9): 7,569 GiB (7.39 TiB)

Retired Block Count (05): 2
Failure count (AB, AC): 1 program, 0 erase
Raw Error Rate (01): 120 normalized
Media Wearout Indicator (E7): 100 normalized
Wear Range Delta (B1): 3 raw
Reported Uncorrectable Errors (BB): 0 raw

The Sandisk has not had any further reallocations from the last 24 hours. I wonder when the media wear indicator is going to start moving? Also, the Power-on hours normalized value went from 100 to 0 in 24 hours ... so I think write throttling won't be a problem on this drive, unlike the silicon power drive from before.

[Christopher]

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

Plextor M3P 128GB Day 10
241,493.45 GiB
235.83 TiB

272.10 MB/s Avg, down from 273.49 MB/s in the other rig

248 Hours

Rellocated Event Count 0

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

Samsung 830 256GB Day 79

1,916,184.25 GiB
1,871.27 TiB

304.34 MB/s Average
1894 Hours

8319 Wear Leveling Count
MWI 1

7/0 Erase/Program Fail
Used Reserved Block Count: 14/28672 sectors

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

[Anvil]

I wonder about the Samsung, it just looks to go on and on and...

I looked at the 64GB drive (which was not exactly dead but still out of the contest) and you are way past what one could expect by just scaling up the figures from the 64GB drive.

415iTB and "P/E" (Host writes / Capacity) ended at ~7130 is the latest recording I've got and that would translate to 1660TiB, you are already +210TiB .

Endurance_cr_20120606.png

[Christopher]

Anvil,

The 64GB 830 was subject to crazy high WA due to 01FW. When I put 02FW on it, WA went back to normal. Since the 256GB is on 03FW, the numbers aren't really comparable.

The 256GB is using 1 avg PE cycle for every 230GB written, the 64GB was using 1 for every 16GB or so for the first two weeks of testing until I put 02FW on it. After that it was 1 for every 58GB or so. I'd have to go back and look.



When I stopped testing of the 64GB it had over 16,000PE cycles on it.

[Ao1]

Generic USB Drive – 4 GB
Writes: 620.11 GB
Average speed: 2.71 MB/s

Write speed has increased from 2.45 MB/s to 2.71 MB/s from start to current. Seems that write speeds increase as the NAND “wears in.”

[kaktus1907]

btw 19 nm Toshiba Toggle Nands with Sandforce Controller

http://thessdreview.com/latest-buzz/...x-2012-update/

19nm toggle nands should be Toggle Mode 2.0 right? 400MT/s or these are still ver 1.0 200MT/s just like 24nm Type B T-Nands?

[Christopher]

Assuming a WAF of 1.10, the M3P has used 2184 PE cycles. It's doing about 957.34 GiB an hour, or around 8.3 PE cycles per hour.

To date, the 830 has 1,933,004 GiB in LBA writes (8338 Wear Leveling Count). 1,933,004 / 8338 WLC = 231.83GiB per WLC. Since the LBA writes are about 12TB ahead of ASU, dividing WLC by ASU's figure equals about 230GiB/WLC. This number has been consistent throughout the first 79 days of testing. The 830 is using >4 PE cycles per hour, or 105 to 110 per day.

EDIT
I timed it, and in 7 hours the 830 used 30 PE cycles, about 4.28 an hour. Sometimes the drive is faster, sometimes slower, and I'm not sure if the slower periods are using more or less PE cycles. You really have to average it out over 7 days or so.

[B.A.T]

Todays update:

m4
1010.9994 TiB
4248 hours
Avg speed 74.56 MiB/s.
AD gone from 35 to 32
P/E 17427.
CE 26
MD5 OK.
Reallocated sectors : 00


Intel X25-M G1 80GB
690.58 TiB
23558 hours
Reallocated sectors : 127 to 132
Available Reserved space: 76
MWI= 76 to 66
MD5 =OK
39.89 MiB/s on avg


Intel X25-E 64GB
212.96 TiB
646-30=616 hours
Reallocated sectors : 0
Available Reserved space: 100
MWI= 98
MD5 =OK
91.17 MiB/s on avg


Mtron Pro 7025 32GB
ASU write 11.0486 TiB
Host write 20,0083 TiB
Total host write 67,5438 TiB
Day 3
MWI= 99
MD5 =OK
47.08 MiB/s on avg

[Anvil]

Intel 330 120GB

147.30TB Host writes
Reallocated sectors : 05 0
Available Reserved Space : E8 100
MWI 84
[F1] Total LBAs Written 4826712
[F2] Total LBAs Read 30800 // not much use in this one
[F9] Total NAND Writes 106325GB
POH 381
MD5 OK

122.86MiB/s on avg (~37 hours)

--

Kingston SSDNow 40GB (X25-V)

1017.66TB Host writes
Reallocated sectors : 05 46
Available Reserved Space : E8 99
POH 9108
MD5 OK

33.50MiB/s on avg (~37 hours)

[Christopher]

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

Plextor M3P 128GB Day 10
266,094.42 GiB
259.86 TiB

272.63 MB/s Avg, down from 273.49 MB/s in the other rig

274 Hours

Rellocated Event Count 0

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

Samsung 830 256GB Day 80

1,941,575.25 GiB
1,896.07 TiB

299.47 MB/s Average
1920 Hours

8431 Wear Leveling Count
MWI 1

7/0 Erase/Program Fail
Used Reserved Block Count: 14/28672 sectors

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

The 830 is only a couple days (~48 hours) from 2,000,000 GiB in ASU, but LBA writes are 13TB ahead. It should hit 2PiB next week sometime.

[Anvil]

Getting close to 2PB

It's a record breaker!

[Christopher]

Fingers crossed....

[B.A.T]

Todays update:

m4
1016.7463 TiB
4271 hours
Avg speed 73.87 MiB/s.
AD gone from 32 to 28
P/E 17523.
CE 26
MD5 OK.
Reallocated sectors : 00


Intel X25-M G1 80GB
693.82 TiB
23581 hours
Reallocated sectors : 132 to 136
Available Reserved space: 76
MWI= 66 to 57
MD5 =OK
40.14 MiB/s on avg


Intel X25-E 64GB
220.20 TiB
669-30=639 hours
Reallocated sectors : 0
Available Reserved space: 100
MWI= 98
MD5 =OK
91.11 MiB/s on avg


Mtron Pro 7025 32GB
ASU write 14.7878 TiB
Host write 26,8596 TiB
Total host write 74,3951 TiB
Day 4
MWI= 99
MD5 =OK
47.11 MiB/s on avg