Actually, that's a good point. The endurance of the drive is governed by the worst NAND die, so the probability of one die failing is 4x greater than a 64GB 830 -- which have 2x the dice of ONFI drives with 64gbit dice.
Printable View
I don't think you can typically expect the drive endurance to increase linearly with capacity in real world testing, but I'm no expert. If you ask me the 830 is the most impressive drive to date. 4PiB is no joke.
Just wanted to comment that this thread made me go run out and grab an 830 for my notebook. It's performing well, even on my ancient 2011 SATA II hardware. My only complaint is that it gets the palm area where the drive resides considerably warmer than before. I was writing 150GB or so to the drive at 200+MB/s, but I never noticed that area get that warm before.
Here are todays update:
m4
1541.8668 TiB
6378 hours
Avg speed 74,88 MiB/s.
AD 245 to 239
P/E 26553
C3 9220 to 11450
01 3 to 5
CE 90
MD5 OK.
Reallocated sectors : 00
http://www.diskusjon.no/index.php?ap...tach_id=502545
Intel X25-E 64GB
899.39 TiB
2844-30=2814 hours
Reallocated sectors : 219 to 237
Available Reserved space: 93 to 92
MWI= 94
MD5 =OK
87.36 MiB/s on avg
http://www.diskusjon.no/index.php?ap...tach_id=502546
Mtron Pro 7025 32GB
Paused until new firmware is updated.
OCZ Vertex 1 120GB
Will start after an update to the latest firmware.
The 830 gets warm; under prolonged writing mine stays around 52c, and it's in open air. The 830 is great for laptops since it only draws .38w at idle -- though load consumption is as much a
6w for the larger capacities.
Here are todays update:
m4
1547.8740 TiB
6401 hours
Avg speed 74,90 MiB/s.
AD 239 to 236
P/E 26656
C3 11450 to 11796
01 5
CE 90
MD5 OK.
Reallocated sectors : 00
http://www.diskusjon.no/index.php?ap...tach_id=502613
Intel X25-E 64GB
906.38 TiB
2868-30=2838 hours
Reallocated sectors : 237 to 248
Available Reserved space: 92
MWI= 94
MD5 =OK
87.19 MiB/s on avg
http://www.diskusjon.no/index.php?ap...tach_id=502614
Mtron Pro 7025 32GB
Paused until new firmware is updated.
OCZ Vertex 1 120GB
Will start after an update to the latest firmware.
The drive is undetected in bios. Tried it from 3 different machines. The G1 is truly dead.
Samsung 830 256GB Day 168
(GiB) 4,265,360
(TiB) 4,165
(PiB) 4.09
(Avg) 297.53 MB/s over the past 1400+ hours
(B1) Wear Leveling Count: 18,454
(B6) Erase Fail Count: 9
(05) Reallocated Sectors: 36864
(POH) 4198
-------------------
The 830's instantaneous estimated speed is 350MB/s for most of the loop! If it weren't for the average being almost 1500 hours, avg/MBs would most likely be quite high.
350 MiB/s write speed after 4 PiB is ridiculous fast and impressive. :)
Here are todays update:
m4
1554.0292 TiB
6425 hours
Avg speed 74,93 MiB/s.
AD 236 to 232
P/E 26760
C3 11796 to 15808
01 5 to 6
CE 90
MD5 OK.
Reallocated sectors : 00
http://www.diskusjon.no/index.php?ap...tach_id=502746
Intel X25-E 64GB
913.48 TiB
2892-30=2862 hours
Reallocated sectors : 248 to 255 to 7
Available Reserved space: 92
MWI= 94
MD5 =OK
87.01 MiB/s on avg
http://www.diskusjon.no/index.php?ap...tach_id=502747
Mtron Pro 7025 32GB
Paused until new firmware is updated.
OCZ Vertex 1 120GB
Will start after an update to the latest firmware.
My 256GB under test runs between 50c and 54c. The 512GB is slightly slower in some places, slightly faster In others compared to the 256GB. They share the same number of dice, but the 512GB uses 64Gbit dice while the rest use 32gbit dies. I haven't run the 512GB for any length of time under endurance testing though.
Sandisk Extreme G25 - 120gb - Day 96
Drive hours: 2239
ASU GiB written: 959,599.64 GiB (937.11 TiB)
Avg MB/s: 125.13 MB/s (39.87 hours)
MD5: OK
Host GB written (F1): 965,764 GiB (943.13 TiB)
NAND writes (E9): 721,201 GiB (704.30 TiB)
Retired Block Count (05): 4 raw
Failure count (AB, AC): 1 program, 1 erase
Raw Error Rate (01): 110 normalized
Media Wearout Indicator (E7): 10 normalized
Wear Range Delta (B1): 4 raw
Reported Uncorrectable Errors (BB): 0 raw
The 330 has been acting up and so the X25-V is running solo. (the 330 is idle)
I'l get back to tonight with a proper report. (been travelling a lot lately)
Sandisk Extreme G25 - 120gb - Day 98
Drive hours: 2288
ASU GiB written: 981,462.60 GiB (958.46 TiB)
Avg MB/s: 125.41MB/s (81.37 hours)
MD5: OK
Host GB written (F1): 987,735 GiB (964.58 TiB)
NAND writes (E9): 737,627 GiB (720.34 TiB)
Retired Block Count (05): 4 raw
Failure count (AB, AC): 1 program, 1 erase
Raw Error Rate (01): 112 normalized
Media Wearout Indicator (E7): 10 normalized
Wear Range Delta (B1): 4 raw
Reported Uncorrectable Errors (BB): 0 raw
Will post new graphs in a few minutes :)
Attachment 129969
Attachment 129970
Bat's poor X25-M 80GB has the final stats on death. I'll update other drives if people post their updates!
Edit 1: Updated BAT's Drives
Here are todays update:
m4
1570.9176 TiB
6491 hours
Avg speed 75.06 MiB/s.
AD 232 to 223
P/E 27047
C3 15808 to 26044
01 6 to 10
CE 90
MD5 OK.
Reallocated sectors : 00
http://www.diskusjon.no/index.php?ap...tach_id=502984
Intel X25-E 64GB
932.79 TiB
2957-30=2927 hours
Reallocated sectors : 7 to 32
Available Reserved space: 92 to 91
MWI= 94 to 93
MD5 =OK
86.57 MiB/s on avg
http://www.diskusjon.no/index.php?ap...tach_id=502985
Mtron Pro 7025 32GB
Paused until new firmware is updated.
OCZ Vertex 1 120GB
Will start after an update to the latest firmware.
Status of the Intel 330 120GB
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)
It's not running any tests (just idling), will have a closer look at it this weekend, most likely on a different computer.
--
Kingston SSDNow 40GB (X25-V)
1210.15TB Host writes (39654321*32)
Reallocated sectors : 05 78 +5
Available Reserved Space : E8 98
POH 10856
MD5 OK
33.15MiB/s on avg (~60 hours)
--
I'll have a look at the events logged by SMARTLog, they should be telling some of the story.
Samsung 830 256GB Day 172
(GiB) 4,349,371
(TiB) 4,247
(PiB) 4.17
(Avg) 297.64 MB/s over the past 1400+ hours
(B1) Wear Leveling Count: 18,816
(B6) Erase Fail Count: 9
(05) Reallocated Sectors: 36864
(POH) 4269
-------------------
The 830 is boring me.
So I think I'm going to try another drive -- but this time, I'm goinng to do full span random testing with either 4K or 8K. And it will probably be a drive already tested by me or someone else.
Attachment 129990
Attachment 129991
Just a graph update since Anvil and Christopher did updates.
Attachment 129993
Woohoo, 1 million GB written!