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One of the most salient nuggets of knowledge from this endeavor can be discerned simply by looking at the charts. I hope the Plextor becomes the exception to the rule... I sometimes forget about the Plextor, like it's an afterthought. I'll start thinking about it some more as it gets closer to 1PiB.Quote:
Originally Posted by canthearu
I don't really believe that slower drives = more endurance.
It all depends on:
a) NAND quality and drive size.
b) How gently the controller programs and erases the NAND, to improve NAND life.
c) How the controller detects and handles blocks that wear more then others, while not going crazy due to the average wear increasing.
There have been slow drives that die early .... like the Patriot Torqx 2.
There have been fast drives that last a long time .... like the Samsung 830 is proving to.
A couple of notes:
The MWI on my Sandisk Extreme is following a close course to that plotted by Anvil's Corsair Force 120.
However, the Wear Range Delta on my drive is far below what Anvil's Corsair Force was showing. At 68494 GB NAND written, Anvil's drive was showing a WRD of 39. My Sandisk Extreme, at 67290 GB NAND written, is showing a WRD of only 3 .... I haven't actually seen the WRD on my drive exceed 5.
Todays update:
m4
48h retention test ongoing. Finished 23.00 gmt+2
Intel X25-M G1 80GB
48h retention test ongoing. Finished 23.00 gmt+2
Intel X25-E 64GB
267.21 TiB
817-30=787 hours
Reallocated sectors : 0
Available Reserved space: 100
MWI= 98
MD5 =OK
90.24 MiB/s on avg
http://www.diskusjon.no/index.php?ap...tach_id=494343
Mtron Pro 7025 32GB
ASU write 34.0158 TiB
Host write 62,5824 TiB
Total host write 110,1180 TiB
Day 11
MWI= 97
MD5 =OK
47.66 MiB/s on avg
http://www.diskusjon.no/index.php?ap...tach_id=494341
Intel 520 60GB - Day 109
Drive hours: 2,562
ASU GiB written: 814,855.74 GiB (795.76 TiB)
Avg MB/s: 93.39 MB/s
MD5: OK
Host GB written (F1): 820,676.06 GiB (801.44 TiB, 26261634 raw)
NAND writes (F9): 580,975 GiB (567.36 TiB)
Reallocated sectors (05): 0
Failure count (AB, AC): 0 program, 0 erase
Raw Error Rate (8B): 104 normalised
Avaliable Reserved Space (AA): 100 normalised
Media Wearout Indicator (E9): 1
Sandisk Extreme G25 - 120gb - Day 9
Drive hours: 215
ASU GiB written: 91,004.79 GiB (88.87 TiB)
Avg MB/s: 121.39 MB/s
MD5: OK
Host GB written (F1): 91,685 GiB (89.54 TiB)
NAND writes (E9): 68,388 GiB (66.79 TiB)
Retired Block Count (05): 4
Failure count (AB, AC): 1 program, 1 erase
Raw Error Rate (01): 105 normalized
Media Wearout Indicator (E7): 84 normalized
Wear Range Delta (B1): 3 raw
Reported Uncorrectable Errors (BB): 0 raw
Intel 330 120GB
212.75TB Host writes
Reallocated sectors : 05 0
Available Reserved Space : E8 100
MWI 76
[F1] Total LBAs Written 6971250
[F2] Total LBAs Read 30856 //
[F9] Total NAND Writes 153564GB
POH 554
MD5 OK
123.41MiB/s on avg (~31 hours)
(it changed to 76 as I was posting)
--
Kingston SSDNow 40GB (X25-V)
1037.11TB Host writes (33984057*32)
Reallocated sectors : 05 46
Available Reserved Space : E8 99
POH 9282
MD5 OK
34.62MiB/s on avg (~31 hours)
Attachment 127597
Samsung 830 256GB Day 87
(GiB) 2,121,258.49
(TiB) 2,071.54
(Avg) 293.05 MB/s
(B1) Wear Leveling Count: 9208
(B6) Erase Fail Count: 7
(05) Reallocated Sectors: 28672
(POH) 2096
Plextor M3P 128GB Day 16
(GiB) 434,072.90
(TiB) 423.89
(Avg) 273.62 MB/s
(POH) 448
Todays update:
m4
48h retention test ongoing. Finished 23.00 gmt+2 today
Intel X25-M G1 80GB
48h retention test ongoing. Finished 23.00 gmt+2 today
Intel X25-E 64GB
275.19 TiB
843-30=813 hours
Reallocated sectors : 0
Available Reserved space: 100
MWI= 98
MD5 =OK
90.37 MiB/s on avg
http://www.diskusjon.no/index.php?ap...tach_id=494490
Mtron Pro 7025 32GB
ASU write 38.2044TiB
Host write 70,5586 TiB
Total host write 118,0941 TiB
Day 12
MWI= 97
MD5 =OK
47.68 MiB/s on avg
http://www.diskusjon.no/index.php?ap...tach_id=494488
BAT, I'll do some power consumption testing of my 32GB MTRON today, It uses 50nm Hynix SLC and not the Micron stuff, but power use should be similar. I've never seen any power usage stats for MTRONs, but I bet they don't use much.
I'm just kinda curious. Right now, the 830 is using over 5w and the M3P only 2.5w.
B.A.T., Any idea why the X25-E has dropped 10mb/s in speed?
That would be interesting. I don't have any equipment to measure so I can't help you with that.Quote:
Originally Posted by Christopher
Btw, my Mtron got Samsung SLC nand but I don't know if it performs different than Micron/Hynix.
I think the E has settled in. The write speed has been very stable the last 10 days.Quote:
Originally Posted by Kain665
Intel 330 120GB
224.14TB Host writes
Reallocated sectors : 05 0
Available Reserved Space : E8 100
MWI 75
[F1] Total LBAs Written 7344670
[F2] Total LBAs Read 30856 //
[F9] Total NAND Writes 161789GB
POH 580
MD5 OK
123.51MiB/s on avg (~58 hours)
--
Kingston SSDNow 40GB (X25-V)
1040.18TB Host writes (33984057*32)
Reallocated sectors : 05 46
Available Reserved Space : E8 99
POH 9309
MD5 OK
33.98MiB/s on avg (~58 hours)
--
Both drives are now entering a data-retention test, will reconnect Sunday night. (~48 hours)
Retention update:
The test is over and both drives are live and kicking :toast:
They work fine and are back at writing like before. Not much changes in smart but there was 2. I'll put them in the status for each drive in bold.
m4
1041.8193 TiB
4379 hours
Avg speed 76.99 MiB/s.
AD gone from 16 to 14
P/E 17957.
CE 26 to 58
MD5 OK.
Reallocated sectors : 00
http://www.diskusjon.no/index.php?ap...tach_id=494549
Intel X25-M G1 80GB
706.24 TiB
23670 hours
Reallocated sectors : 158
Available Reserved space: 75 to 74
MWI= 44 to 42
MD5 =OK
33.98 MiB/s on avg
http://www.diskusjon.no/index.php?ap...tach_id=494547
Not sure if you guys are interested but CDI 5.0 is just now out of beta and available for dl...
http://crystalmark.info/?lang=en
I noticed the 5.0 release, tried it last night. (been using the beta for a week or so)
Attachment 127639
Intel 520 60GB - Day 111
Drive hours: 2,613
ASU GiB written: 831,517.05 GiB (812.02 TiB)
Avg MB/s: 93.39 MB/s (168 hours)
MD5: OK
Host GB written (F1): 837,418.84 GiB (817.79 TiB, 26797403 raw)
NAND writes (F9): 592,827 GiB (578.93 TiB)
Reallocated sectors (05): 0
Failure count (AB, AC): 0 program, 0 erase
Raw Error Rate (8B): 104 normalised
Avaliable Reserved Space (AA): 100 normalised
Media Wearout Indicator (E9): 1
Sandisk Extreme G25 - 120gb - Day 11
Drive hours: 266
ASU GiB written: 112,722.17 GiB (110.08 TiB)
Avg MB/s: 121.53 MB/s (168 hours)
MD5: OK
Host GB written (F1): 113,510 GiB (110.85 TiB)
NAND writes (E9): 84,667 GiB (82.68 TiB)
Retired Block Count (05): 4
Failure count (AB, AC): 1 program, 1 erase
Raw Error Rate (01): 105 normalized
Media Wearout Indicator (E7): 79 normalized
Wear Range Delta (B1): 4 raw
Reported Uncorrectable Errors (BB): 0 raw
CDI5 now supports SMART attributes within RAID array,
i've tried with Intel ICH9R with R5 and Z68 with R0)
Oh nice...I didn't even bother to check..lolQuote:
Originally Posted by 2f_tfe
Samsung 830 256GB Day 90
(GiB) 2,189,604.43
(TiB) 2,138.28
(Avg) 293.97 MB/s
(B1) Wear Leveling Count: 9503
(B6) Erase Fail Count: 7
(05) Reallocated Sectors: 28672
(POH) 2162
Plextor M3P 128GB Day 20
(GiB) 498,455.39
(TiB) 486.77
(Avg) 274.74 MB/s
(POH) 513
-------------------------------------------------------
I've been negligent in my updattes the past few days. I nearly killed another MTRON trying to do power consumption testing, but I was able to save this one.
Both drives survived the retention test, they were disconnected for 48 hours 20 minutes.
No changes to SMART.
Right now, the M3P is chewing through PE cycles. At 500,000GiB, and assuming WA=1, the M3P is at 3900 PE cycles. But since that's not possible, it's probably around 4300 PE cycles if WA = 1.10.
Todays update:
Been a couple of days since last update but we had some family visit this weekend so there was time. Here are todays numbers.
m4
1056.4498 TiB
4437 hours
Avg speed 73.92 MiB/s.
AD gone from 14 to 6
P/E 18207.
CE 58
MD5 OK.
Reallocated sectors : 00
http://www.diskusjon.no/index.php?ap...tach_id=494812
Intel X25-M G1 80GB
714.27 TiB
23728 hours
Reallocated sectors : 158 to 172
Available Reserved space: 74
MWI= 44 to 42
MD5 =OK
33.98 MiB/s on avg
http://www.diskusjon.no/index.php?ap...tach_id=494810
Intel X25-E 64GB
296.09TiB
909-30=879 hours
Reallocated sectors : 0
Available Reserved space: 100
MWI= 98
MD5 =OK
90.97 MiB/s on avg
http://www.diskusjon.no/index.php?ap...tach_id=494816
Mtron Pro 7025 32GB
ASU write 46.5560 TiB
Host write 86,4984 TiB
Total host write 134,0339 TiB
Day 15
MWI= 97 to 96
MD5 =OK
47.69 MiB/s on avg
http://www.diskusjon.no/index.php?ap...tach_id=494814
Not much has happened. The Mtron has dropped out to times this weekend.
Intel 330 120GB
230.13TB Host writes
Reallocated sectors : 05 0
Available Reserved Space : E8 100
MWI 74
[F1] Total LBAs Written 7540895
[F2] Total LBAs Read 30857 //
[F9] Total NAND Writes 166111GB
POH 594
MD5 OK
123.54MiB/s on avg (~14 hours)
--
Kingston SSDNow 40GB (X25-V)
1041.98TB Host writes (34143583*32)
Reallocated sectors : 05 46
Available Reserved Space : E8 99
POH 9323
MD5 OK
37.13MiB/s on avg (~14 hours)
We have another kingston here :PQuote:
Originally Posted by B.A.T
But seriously, these Mtron drives are proving to be seriously unreliable/fragile. Just highlights the importance of firmware quality.
SLC + bad firmware = still a bad drive
Hey I had to say that: Did you look at 480GB prices? It dropped like crazy, this is a really great price for this one: http://www.newegg.com/Product/Produc...82E16820226255