SSD Write Endurance 25nm Vs 34nm

[B.A.T]

Todays update:
Kingston V+100
319.7069 TiB
1707 hours
Avg speed 25.44 MiB/s
AD still 1.
168= 1 (SATA PHY Error Count)
P/E?
MD5 OK.
Reallocated sectors : 00


Intel X25-M G1 80GB
201,4006 TiB
20017 hours
Reallocated sectors : 00
MWI=146 to 145
MD5 =OK
46.65 MiB/s on avg


m4
174.3919 TiB
636 hours
Avg speed 80.17 MiB/s.
AD gone from 02 to 255.
P/E 3059.
MD5 OK.
Reallocated sectors : 00


We passed 3000 P/E at 09:30 am today

[minpayne]

^^ So what are you guys gonna do with this M4 now? :p Leave it powered off to check the volatility, or continue to attempt 1PB?

[Christopher]

Samsung 830 64GB Update, Day 28
FW:CXM01B1Q

GiB written:
180960.49

Avg MB/s
64.61

PE Cycles
11418, up from 11046 yesterday

Reallocated Sectors
32768
16 Blocks

682 Hours

[Christopher]

B.A.T.

What is the status of the MTRON? And what kind of MTRON is it?

[Ao1]

Christopher, if I look at the two last screen shots that you have posted you have written 5,472 GB of data and the RAW value of 177 has increased by 372. With no WA you should have been able to write 23,808 GB with 372 P/E cycles, so if the RAW value of 177 is counting P/E depletion the write amplification factor is 4.35.

That sounds horrific, but I’m leaning towards believing it might be correct based on how quickly Johnw’s 470 burnt out.

I think it is out of line that Samsung don’t provide a MWI based on the fact that data retention is an issue once you start exceeding it.

[Christopher]

I don't know what to make of the Samsung. Last night, I waited until exactly 24.00 Hours to stop ASU and then power cycle the Samsung to get the number of PE cycles used in that period. I can't seriously believe that WA is really that high on the 830 -- and there is still the problem of the drive being stuck in a lower performance state. I was hoping there was a new FW update for it, but alas, there is not.

The Samsung should be doing around 9000GB a day, but it's still stuck in whatever performance degradation mode its in. Now it does about 5300GB a day, using about ~370 PE cycles in the process.

[Anvil]

Kingston SSDNow 40GB (X25-V)

Is 47.5 hours into the data retention test!

602.48TB Host writes
Reallocated sectors : 05 19
Available Reserved Space : E8 99
POH 5449
MD5 OK

--.--MiB/s on avg (~-- hours)

--

Corsair Force 3 120GB

01 92/50 (Raw read error rate)
05 2 (Retired Block count)
B1 54 (Wear range delta)
E6 100 (Life curve status)
E7 10 (SSD Life left)
E9 630653 (Raw writes) ->616TiB
F1 839397 (Host writes) ->820TiB

MD5 OK

106.70MiB/s on avg (~48 hours)

power on hours : 2421

--

Will be re-attaching the X25-V in 30 minutes.

[One_Hertz]

Just mentioning that my x25 has been powered off since Saturday doing a retention test.

[Anvil]

Will it last for a year?
(it's 4.5 months left)

edit:
My X25-V is OK, it's back running the test. (disconnected for 48 hours + a few minutes)

[B.A.T]

^^ So what are you guys gonna do with this M4 now? :p Leave it powered off to check the volatility, or continue to attempt 1PB?

Run it to the ground
And short retentiont test every 100GiB.

B.A.T.

What is the status of the MTRON? And what kind of MTRON is it?

I'll answer that with a quote

Third: The MTRON is something wrong with. I've tried it in my foldingrig but without any luck. I get the same problems as before and the system feels sluggish and sometime hangs. I'm going to send it back to GullLars and he can rma it. They come with 5 years warranty so he might get something new and shiny .

[Christopher]

B.A.T.

I remember all that about the MTRON... I just was wondering if you had got it back yet.

Since I got whored out of the S-Class 32GB SLC (I got sent a 64GB M-Class MLC jmicron + Samsung NAND instead), I picked up a new MTRON 16GB. It should be here in a few days.

[B.A.T]

I didn't get anything back, no, so we just have to enjoy what ww have here

Power is out again so the update will have to wait until the morning.

[Christopher]

Well, don't freeze to death

I don't even know the first thing about MTRONs...

[B.A.T]

I found this when I started digging in october.
MTRON MOBI 3000 PATA
MTRON MOBI 3000 SATA
MTRON MOBI 3500 SATA
MTRON PRO 7000 SATA
MTRON PRO 7500 SATA

[Christopher]

Samsung 830 64GB Update, Day 29
FW:CXM01B1Q

GiB written:
186406.84

Avg MB/s
63.86

PE Cycles
11799, up from 11418 yesterday

Reallocated Sectors
36864
18 Blocks

706 Hours




The MTRON I referred to is an MTRON PRO 7000 SLC as I've discovered. Thanks B.A.T.

[Anvil]

Kingston SSDNow 40GB (X25-V)

605.34TB Host writes
Reallocated sectors : 05 19
Available Reserved Space : E8 99
POH 5473
MD5 OK

35.05MiB/s on avg (~24 hours)

--

Corsair Force 3 120GB

01 82/50 (Raw read error rate)
05 2 (Retired Block count)
B1 58 (Wear range delta)
E6 100 (Life curve status)
E7 10 (SSD Life left)
E9 637543 (Raw writes) ->623TiB
F1 848558 (Host writes) ->829TiB

MD5 OK

106.69MiB/s on avg (~72 hours)

power on hours : 2446

[B.A.T]

Todays update:
Kingston V+100
322.3106 TiB
1738 hours
Avg speed 25.23MiB/s
AD still 1.
168= 1 (SATA PHY Error Count)
P/E?
MD5 OK.
Reallocated sectors : 00


Intel X25-M G1 80GB
205,8065 TiB
20048 hours
Reallocated sectors : 00
MWI=145 to 144
MD5 =OK
42.27 MiB/s on avg


m4
182.3537 TiB
667 hours
Avg speed 78.03 MiB/s.
AD gone from 255 to 250.
P/E 3206.
MD5 OK.
Reallocated sectors : 00


All ssd are back up and we have power again. 12 hours this time and hopefully the powercompany has fixed all broken equipment after the storm now.

[Anvil]

[Computurd]

ummm wilderness here fellas, from what i am reading there is a known bug that is causing M4 to die at 5200 hours of use! how far in is this one?? interesting!

http://forums.crucial.com/t5/Solid-S...p/77298#M23632

http://forum.crucial.com/t5/Solid-St...4GB/td-p/76392

thoughts?

[B.A.T]

Only 667 hours. The first one died after 2749 hour but the cause there was data retention due to powerloss.
First time I've heard about that problem.

[Anvil]

thoughts?

Not so far and I've been using the m4s for a long time, will have to read the whole thread and it looks a bit confusing...
The first few posts looks similar to the freeze which is cured in most cases by the LPM fix.
We need a new thread for further discussion of those reported m4 issues (except for B.A.T's drive)

[Computurd]

We need a new thread for further discussion of those reported m4 issues

true, sorry for derail. just figured i would ask the experts

also needed to know the uptime of the endurance testing.

[Anvil]

I doubt that any of my m4s are close to 5000 hours, I have been using my m4s a lot. (except for the ones that are waiting for a new fw for the raid-card issues)
From reading the first 8 pages all I can say is it looks weird...

edit: (all pages read)
As usual a lot of people are jumping conclusions and are mixing issues, still there looks to be something going on for the ones that have been using the drives for 5000+ hours.

Why don't you create that thread CT

[minpayne]

ummm wilderness here fellas, from what i am reading there is a known bug that is causing M4 to die at 5200 hours of use! how far in is this one?? interesting!

http://forums.crucial.com/t5/Solid-S...p/77298#M23632

http://forum.crucial.com/t5/Solid-St...4GB/td-p/76392

thoughts?

I'm not a big fan of Marvell controller (cf the dead M4 512GB's, the Marvell network adapter and the Marvell raid rom). I hope the dreadful 5200 hours isn't true, otherwise I dare not leave my machine 24/7 on for the last M4 512GB I've not returned for refund.

[Christopher]

Samsung 830 64GB Update, Day 30
FW:CXM01B1Q

GiB written:
191703.19

Avg MB/s
63.15

PE Cycles
12167, up from 11799 yesterday

Reallocated Sectors
36864
18 Blocks

730 Hours