SSD Write Endurance 25nm Vs 34nm

[Krakus]

I just wanted to mention to you all that Newegg is having a sale on the Samsung 830 series SSD in the 256 GB capacity only for $169.99 if you enter the promo code:

EMCYTZT2258

The sale lasts only from 9 AM to 12 PM PST. That means in about 15 minutes. Also, the promo code is only guaranteed to work as long as they have funds.

If you want to stock up on a few new SSDs to abuse, now would be the time to do so.

Happy endurance testing, everyone!

[Zaxx]

There's a section to post good deals in...thx for the info tho.

[B.A.T]

Here are todays update:

m4
1654.6581 TiB
6824 hours
Avg speed 74.93 MiB/s.
AD 177 to 174
P/E 28502
C3 272213 to 300472
01 100 to 109 (90 to 89)
CE 90
MD5 OK.
Reallocated sectors : 00


Intel X25-E 64GB
1.01 PiB
3290-30=3260 hours
Reallocated sectors : 175 to 181
Available Reserved space: 86
MWI= 93
MD5 =OK
85.07 MiB/s on avg


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

OCZ Vertex 1 120GB
Will start after an update to the latest firmware.

Both drives got a surprise retention test today. A tree came down on the powerline in our neighborhood and we were without power for 8 hours.
They are now running normal and without problems.

[alank2]

Hi,

So knowing what you guys know about the 830 / 256 gb model, do you think it would be up for a server class drive? I've got an Exchange server running with a regular sata drive that is just not up to the task. I'd like to recommend a SSD, but longevity is my only concern - the enterprise marketed ones are so much more $$$ than the 830/256gb...

What do you guys think??

Thanks,

Alan

[kensiko]

Go for it, but do a RAID mirror.

We are doing it with 2 Intel X-18M and they are doing great, they are installed since about 3 years. But we are not doing heavy writes on them, mostly reads.

Be sure to have a regular backup.

The day when you'll need to replace them, the prices of SSD will have dropped by 4.

[alank2]

Hi,

Go for it, but do a RAID mirror.

I should have mentioned it, but yes, a RAID 1 would be the configuration.

Be sure to have a regular backup.

Absolutely!

I've been running a tool called SSDReady on the server for almost 5.5 hours that monitors disk writes so I can get an idea of how heavy the writes are...



Thanks,

Alan

[canthearu]

A MLC SSD should do ok under that workload.

But monitor the Media Wear Indicator and make sure you replace the drive as soon as it reached end of wear life.

As from testing here, Virtually all SSDs that contain a working media wear indicator will operate without a problem until the wear indicator reaches the worn point. (exceptions include OCZ Vertex 4 and Octane drives, so don't use those)

SsdReady may even be significantly underestimating ssd life under this workload.

[B.A.T]

Here are todays update:

m4
1666.7700 TiB
6848 hours
Avg speed 74.66 MiB/s.
AD 174 to 171
P/E 28605
C3 300472 to 361409
01 109 to 131 (89 to 87)
CE 90
MD5 OK.
Reallocated sectors : 00


Intel X25-E 64GB
1.01 PiB
3314-30=3284 hours
Reallocated sectors : 181 to 192
Available Reserved space: 86
MWI= 93
MD5 =OK
85.07 MiB/s on avg


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

OCZ Vertex 1 120GB
Will start after an update to the latest firmware.

[Zaxx]

A MLC SSD should do ok under that workload. SsdReady may even be significantly underestimating ssd life under this workload.

My thoughts exactly. I take any and all ssd life predicting software with a huge grain of salt...hell even the drives own wearout indicator is rarely accurate, almost always waaay premature but better safe than sorry re: server deployment. A quick look at the charts on the first page of this thread shows what I'm talking about.

[B.A.T]

Here are todays update:

m4
1678.9278 TiB
6919 hours
Avg speed 74.62 MiB/s.
AD 171 to 161
P/E 28914
C3 361409 to 593146
01 131 to 216 (87 to 78)
CE 90
MD5 OK.
Reallocated sectors : 00


Intel X25-E 64GB
1.03 PiB
3385-30=3255 hours
Reallocated sectors : 192 to 222
Available Reserved space: 86 to 85
MWI= 93
MD5 =OK
82.27 MiB/s on avg


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

OCZ Vertex 1 120GB
Will start after an update to the latest firmware.

[Kain665]

That M4 just won't die...

[B.A.T]

It really can take a beating

[Anvil]

Status of the Intel 330 120GB

// nothing has changed, It's not running any tests. (still just idling)

831.75TB Host writes
2.81TiB Host reads
Reallocated sectors : 05 1184 +797 (387)
Available Reserved Space : E8 100 ""
MWI 1 (9)
[B5] Program fail count 563 (186)
[B6] Erase fail count 621 (201)
[F1] Total LBAs Written 27254740
[F2] Total LBAs Read 86201
[F9] Total NAND Writes 600556GB // ~586TiB
POH 2605 (1824)
MD5 --

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

--

Kingston SSDNow 40GB (X25-V)

1256.23TB Host writes 41164217*32)
Reallocated sectors : 05 81 +3
Available Reserved Space : E8 98
POH 11313
MD5 OK

33.13MiB/s on avg (~217 hours)

--

I'm still busy travelling, hopefully it'll calm down within a few weeks.

The X25-V looks to be almost indestructible...

Thanks to all of you for keeping the thread alive!

[Anvil]

Well don't let it happen again!

Unfortunately it happened, again,

Here are todays update with a little sad news:
...
R.I.P Intel X25-M G1 80GB

Sorry about the G1, it did well though.

Your other drives still looks to be fit for fight.


Congrats to Chris for being the first one to get past 2, 3 and 4TiB

Thanks to canthearu for the charts!

and sorry about the SanDisk, not sure if my Intel 330 is ready for more beating...
(it lasted 2-3 hours last time I tried)

Next test should be done on the Samsung 840 TLC!

http://www.anandtech.com/show/6329/s...-based-840-ssd

The life span is supposed to be 10 times less.

The new Samsung series needs to be tested!

[Christopher]

Sorry, I've been traveling the past week. I'm looking into some new drives to test at the moment. I'll post an update on the 830 tonight when I get home, should be getting toward the 5M GiB mark.

[lpto]

Hello with my first post here,
Whats interesting with the Sandisk and the Samsung 830 is the temperature. The 830 shows over 50c but the Sandisk shows only ~25c. When putting multiple SSDs into a high-performance server, would the lower temperature of another drive than Samsung be a great advantage.

[Christopher]

Hello with my first post here,
Whats interesting with the Sandisk and the Samsung 830 is the temperature. The 830 shows over 50c but the Sandisk shows only ~25c. When putting multiple SSDs into a high-performance server, would the lower temperature of another drive than Samsung be a great advantage.

Not really. The 830 uses more power on load than new drives using sub 32nm Toggle flash (though idle is superb). You'd only experience those higher temps if you're continuously writing to the drive. Otherwise, it produces less heat. It's negligible for the most part.

[Christopher]

Samsung 830 256GB Day 195

(GiB) 4,827,206
(TiB) 4,714
(PiB) 4.63


(Avg) 297.56 MB/s over the past 2000+ hours

(B1) Wear Leveling Count: 20,881

(B6) Erase Fail Count: 10
(B6) Runtime Bad Block Count: 11
(05) Reallocated Sectors: 45056

(POH) 4740


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

[B.A.T]

Here are todays update:

m4
1690.8437 TiB
6966 hours
Avg speed 74.61 MiB/s.
AD 161 to 154
P/E 29117
C3 593146 to 837549
01 216 to 290 (78 to 70)
CE 90
MD5 OK.
Reallocated sectors : 00


Intel X25-E 64GB
1.04 PiB
3431-30=3401 hours
Reallocated sectors : 222 to 239
Available Reserved space: 85
MWI= 93
MD5 =OK
82.11 MiB/s on avg


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

OCZ Vertex 1 120GB
Will start after an update to the latest firmware.

[Christopher]

Samsung 830 256GB Day 197

(GiB) 4,875,794
(TiB) 4,761
(PiB) 4.68


(Avg) 297.55 MB/s over the past 2000+ hours

(B1) Wear Leveling Count: 21,091

(B6) Erase Fail Count: 10
(B6) Runtime Bad Block Count: 11
(05) Reallocated Sectors: 45056

(POH) 4788


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

[B.A.T]

Here are todays update:

m4
1703.6811 TiB
7016 hours
Avg speed 74.57 MiB/s.
AD 154 to 147
P/E 29335
C3 837549 to 1150608
01 290 to 383 (70 to 61)
CE 90
MD5 OK.
Reallocated sectors : 00


Intel X25-E 64GB
1.06 PiB
3481-30=3451 hours
Reallocated sectors : 239 to 255 to 6
Available Reserved space: 85 to 84
MWI= 93 to 92
MD5 =OK
81.99 MiB/s on avg


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

OCZ Vertex 1 120GB
Will start after an update to the latest firmware.

[Christopher]

The 830 just threw another erase failure, making 11 erase and 1 read failure. 49152 reallocated sectors.

[Kain665]

The 830 just threw another erase failure, making 11 erase and 1 read failure. 49152 reallocated sectors.

Yawn...

[Christopher]

Yawn...

No kidding. Maybe one day, SSDs explode when they die, like consoles on Star Trek. Like when an erase failure happens, a plasma conduit ruptures, and some young, nameless ensign dies a tragic death.

[OldChap]

He is an Ensign..... that is his job.

When this one eventually dies you should write to Samsung with the results of your little (maybe not so little) journey. Ask for a replacement because I promise you that a whole bunch of folks will be buying one of these drives as a result of your efforts. ...... They owe you that one replacement at least

will you repeat the test just to make sure it was not a lucky drive?

EDIT: Is there a sweepstake going on final figure?