can you expand on that a bit? i know that SE involves a different voltage being applied to the nand to clear it, but i assumed that would erase it as well. I have heard elsewhere that isnt always the case, but not an explanation of how it works.
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Here are todays update:
m4
1637.4888 TiB
6750 hours
Avg speed 74.90 MiB/s.
AD 191 to 185
P/E 28178
C3 128090 to 171093
01 51 to 67 (95 to 93)
CE 90
MD5 OK.
Reallocated sectors : 00
http://www.diskusjon.no/index.php?ap...tach_id=503960
Intel X25-E 64GB
1008.140 TiB
3216-30=3186 hours
Reallocated sectors : 123 to 147
Available Reserved space: 88 to 87
MWI= 93
MD5 =OK
85.45 MiB/s on avg
http://www.diskusjon.no/index.php?ap...tach_id=503961
Mtron Pro 7025 32GB
Paused until new firmware is updated.
OCZ Vertex 1 120GB
Will start after an update to the latest firmware.
Samsung 830 256GB Day 188
(GiB) 4,590,570
(TiB) 4,482
(PiB) 4.40
(Avg) 297.59 MB/s over the past 1600+ hours
(B1) Wear Leveling Count: 20,017
(B6) Erase Fail Count: 10
(B6) Runtime Bad Block Count: 11
(05) Reallocated Sectors: 45056
(POH) 4547
-------------------
There was another block failure, except this time I think it's a read failure. There are smart attributes for erase and program failures, but not read failures. 11 total reallocation events were comprised of 10 erase failures, 0 program, leaving the remaining one which occured today a read failure based on process of elimination.
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.
I'll admit, I'm interested in checking it out. I almost can't believe they're using TLC, but what the hell? I'm game. I thought my 830 might have been spiraling downward, but it looks like it won't be dead any time soon.
Here are todays update:
m4
1646.0629 TiB
6783 hours
Avg speed 74.91 MiB/s.
AD 185 to 180
P/E 28324
C3 171093 to 227775
01 67 to 83 (93 to 92)
CE 90
MD5 OK.
Reallocated sectors : 00
http://www.diskusjon.no/index.php?ap...tach_id=504062
Intel X25-E 64GB
1017.66 TiB
3250-30=3220 hours
Reallocated sectors : 147 to 164
Available Reserved space: 87
MWI= 93
MD5 =OK
85.07 MiB/s on avg
http://www.diskusjon.no/index.php?ap...tach_id=504063
Mtron Pro 7025 32GB
Paused until new firmware is updated.
OCZ Vertex 1 120GB
Will start after an update to the latest firmware.
+1 for the Samsung 840 with TLC. I got more than enough drives to test at the moment so I've to wait out with that one.
Here are todays update:
m4
1652.2084 TiB
6783 hours
Avg speed 74.90 MiB/s.
AD 180 to 177
P/E 28429
C3 227775 to 272213
01 83 to 100 (92 to 90)
CE 90
MD5 OK.
Reallocated sectors : 00
http://www.diskusjon.no/index.php?ap...tach_id=504143
Intel X25-E 64GB
1.0 PiB
3273-30=3243 hours
Reallocated sectors : 164 to 175
Available Reserved space: 87 to 86
MWI= 93
MD5 =OK
85.07 MiB/s on avg
http://www.diskusjon.no/index.php?ap...tach_id=504144
Mtron Pro 7025 32GB
Paused until new firmware is updated.
OCZ Vertex 1 120GB
Will start after an update to the latest firmware.
Samsung 830 256GB Day 189
(GiB) 4,666,340
(TiB) 4,556
(PiB) 4.48
(Avg) 297.53 MB/s over the past 1600+ hours
(B1) Wear Leveling Count: 20,186
(B6) Erase Fail Count: 10
(B6) Runtime Bad Block Count: 11
(05) Reallocated Sectors: 45056
(POH) 4585
-------------------
I was thinking about doing this to a 20nm Micron flash drive I have.
TLC vs. 20nm maybe?
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!
There's a section to post good deals in...thx for the info tho.
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
http://www.diskusjon.no/index.php?ap...tach_id=504239
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
http://www.diskusjon.no/index.php?ap...tach_id=504240
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. :)
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
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.
Hi,
I should have mentioned it, but yes, a RAID 1 would be the configuration.
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...
http://home.earthlink.net/~alank2/ssdready.png
Thanks,
Alan
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.
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
http://www.diskusjon.no/index.php?ap...tach_id=504318
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
http://www.diskusjon.no/index.php?ap...tach_id=504319
Mtron Pro 7025 32GB
Paused until new firmware is updated.
OCZ Vertex 1 120GB
Will start after an update to the latest firmware.
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.
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
http://www.diskusjon.no/index.php?ap...tach_id=504557
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
http://www.diskusjon.no/index.php?ap...tach_id=504558
Mtron Pro 7025 32GB
Paused until new firmware is updated.
OCZ Vertex 1 120GB
Will start after an update to the latest firmware.
That M4 just won't die...
It really can take a beating :D
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!
:)
Unfortunately it happened, again, :)
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)
:up:
The new Samsung series needs to be tested!
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.
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.