Anvil, my sandisk extreme seems to be missing from the list of drives on the first page?
Can you fix?
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Anvil, my sandisk extreme seems to be missing from the list of drives on the first page?
Can you fix?
Ugh, will check whats happened when I get back home. (tonight)
edit:
Should be OK now, not sure how that could have happened.
(I do keep backups :) and that made it a quick fix)
Ok, new drive time:
I was kind of disappointed in how the first vertex 4 went ... so it is time to kill another:
This time, I'm going to change the rules.
Drive settings:
Firmware version: 1.5
Overprovisioning: 60 GiB
Static Data: 16 GiB
I am overprovisioning the drive so it stays in performance mode permanantly. I think the constant switching between performance and storage mode, as well the garbage collection the switch caused, was making the drive use excessive write cycles.
There are many new factors that may influence the way this drive goes:
a) If the drive is using NAND in an SLC type fashion, then each erase does twice the damage over normal MLC, as each erase cycle would only be wiping one bit, rather then 2
b) The drive may take a lot less damage during writes if the NAND is being used in an SLC type fashion, as each cell is only written once each pass.
c) Reading the data may be easier if each cell is only written once. Thus the drive may last longer due to less ECC being needed.
How this ends may really be up to how the NAND behaves.
Attachment 128566
That one should be interesting!
It might help on finding out what's going on "behind the scenes" on the V4.
Over-provisioning has been on my list of things to do for quite some time, to get to the interesting parts one needs 2 drives where OP is set differently. (both could be OPd)
Attachment 128568
How is possible to use it as SLC? is there any firmware configuration that allows the cells to be programmed in "SLC" mode?Quote:
Originally Posted by canthearu
Yes, in a roundabout way. There was an excellent summary and re-review of the 256GB V4 (w/FW 1.5) explaining how the performance/storage mode works as well as the mimic-ing of SLC on RWL but now the link just reloads the home page. :/ The new 1.5 was supposed to extend performance mode past the 50% barrier by tweaking garbage collection as well as give a little speed bump.
It's more accurate to call it MLC-1 than SLC. When flash stores two bits, the first bit gets programmed fast while the second takes much longer. So if you just write to that first bit, you get similar performance to SLC.Quote:
Originally Posted by sergiu
Tom's Hardware wrote something about this.Quote:
Originally Posted by Zaxx
Link
Actually that's where I saw it...musta had a toke or two. :peace:Quote:
Originally Posted by B.A.T
The 256GB V4 re-review w/fw1.5 is still a good read if you can get to it...I informed him of the broken link.
The Recovery time white paper discusses MLC-1 briefly.
Samsung 830 256GB Day 122
(GiB) 2,995,490
(TiB) 2,925
(PiB) 2.87
(Avg) 298.77 MB/s
(B1) Wear Leveling Count: 12,978
(B6) Erase Fail Count: 9
(05) Reallocated Sectors: 36864
(POH) 2973
-------------------
Intel 330 120GB
569.94TB Host writes
2.04TiB Host reads
Reallocated sectors : 05 20
Available Reserved Space : E8 100
MWI 34
[B5] 10
[B6] 10
[F1] Total LBAs Written 18675804
[F2] Total LBAs Read 66981
[F9] Total NAND Writes 411416GB // ~402TiB
POH 1381
MD5 OK
125.19MiB/s on avg (~253 hours)
--
Kingston SSDNow 40GB (X25-V)
1133.32TB Host writes (37136841*32)
Reallocated sectors : 05 62 // 1 up
Available Reserved Space : E8 98
POH 10116
MD5 OK
33.39MiB/s on avg (~253 hours)
--
Attachment 128598
Attachment 128599
edit:
I'll update the chart later today if there are any updates...
Sandisk Extreme G25 - 120gb - Day 46
Drive hours: 1103
ASU GiB written: 476,913.77 GiB (465.74 TiB)
Avg MB/s: 126.09 MB/s (26.39 hours)
MD5: OK
Host GB written (F1): 479,554 GiB (468.31 TiB)
NAND writes (E9): 357,930 GiB (349.54 TiB)
Retired Block Count (05): 4 raw
Failure count (AB, AC): 1 program, 1 erase
Raw Error Rate (01): 114 normalized
Media Wearout Indicator (E7): 10 normalized
Wear Range Delta (B1): 3 raw
Reported Uncorrectable Errors (BB): 0 raw
Vertex 4 - 50% OP - 128gb - Day 1
Drive hours: 31
ASU GiB written: 23,158.21 GiB (22.62 TiB)
Avg MB/s: 248.61 MB/s (26.28 hours)
MD5: OK
Host GB written (E8): 24,088.93 GiB (23.52 TiB, 50518137835 raw)
Raw Read Error Rate (01): 6 raw
Reallocated Block Count (05): 0 raw
Remaining Life (E9): 94 normalised
The second vertex 4 is going along quite a lot faster then the first one :)
That is impressive Canthearu... I wonder how long it can keep that up?
Here are todays update:
m4
1252.2432 TiB
5224 hours
Avg speed 74.47 MiB/s.
AD 158 to 150
P/E 21540.
C3 4457
CE 58
MD5 OK.
Reallocated sectors : 00
http://www.diskusjon.no/index.php?ap...tach_id=497955
Intel X25-M G1 80GB
807.84 TiB
24511 hours
Reallocated sectors : 73 to 116
Available Reserved space: 49 to 46
MWI= 184 to 169
MD5 =OK
31.39 Mi/s on avg
http://www.diskusjon.no/index.php?ap...tach_id=497956
Intel X25-E 64GB
541.83 TiB
1692-30) 1662 hours
Reallocated sectors : 0
Available Reserved space: 100
MWI= 96
MD5 =OK
91.10 MiB/s on avg
http://www.diskusjon.no/index.php?ap...tach_id=497954
Not as good as the plextor m3p was (or my oem lite-on)Quote:
Originally Posted by Christopher
Those marvell+toggle nand drives are just unbeatable.
That's probably true, but real MLC-1 also gets SLC like endurance. Perhaps only writing to one half of the drive will change the outcome this time?Quote:
Originally Posted by canthearu
Samsung 830 256GB Day 123
(GiB) 3,020,675
(TiB) 2,949
(PiB) 2.90
(Avg) 298.62 MB/s
(B1) Wear Leveling Count: 3,086
(B6) Erase Fail Count: 9
(05) Reallocated Sectors: 36864
(POH) 2997
-------------------
We're closing in on 3PiB now. 48 more hours to 3000 TiB and another three days to 3PiB.
Plextor and lite-on are 1 in the same { PLDS}Quote:
Originally Posted by canthearu
Very impressive...the 830 has proven to be a very solid performer to say the least. I wish I had the extra resources to test 1 or 2 more large drives (240/256) and see just how big of a roll drive size plays in regards to endurance.Quote:
Originally Posted by Christopher
Here are todays update:
m4
1258.2423 TiB
5248 hours
Avg speed 74.41 MiB/s.
AD 150 to 147
P/E 21642.
C3 4457
CE 58
MD5 OK.
Reallocated sectors : 00
http://www.diskusjon.no/index.php?ap...tach_id=498024
Intel X25-M G1 80GB
810.42 TiB
24535 hours
Reallocated sectors : 116 to 134
Available Reserved space: 46 to 45
MWI= 169
MD5 =OK
31.47 Mi/s on avg
http://www.diskusjon.no/index.php?ap...tach_id=498023
Intel X25-E 64GB
549.24 TiB
1716-30=1686 hours
Reallocated sectors : 0
Available Reserved space: 100
MWI= 96
MD5 =OK
91.15 MiB/s on avg
http://www.diskusjon.no/index.php?ap...tach_id=498025
PLDS = Philips Liteon Digital SolutionsQuote:
Originally Posted by AMD_Freak
http://www.pldsnet.com/
Interesting that Plextor are advertised at that site too.
I doesn't know of any relation between Plextor and PLDS.
Samsung 830 256GB Day 124
(GiB) 3,046,610
(TiB) 2,975
(PiB) 2.92
(Avg) 299.14 MB/s
(B1) Wear Leveling Count: 13,198
(B6) Erase Fail Count: 9
(05) Reallocated Sectors: 36864
(POH) 3021
-------------------
Intel 330 120GB
589.82TB Host writes
2.09TiB Host reads
Reallocated sectors : 05 22 +2
Available Reserved Space : E8 100
MWI 31
[B5] 11
[B6] 11
[F1] Total LBAs Written 19327088
[F2] Total LBAs Read 68626
[F9] Total NAND Writes 425764GB // ~416TiB
POH 1427
MD5 OK
125.20MiB/s on avg (~299 hours)
--
Kingston SSDNow 40GB (X25-V)
1138.59TB Host writes (37309611*32)
Reallocated sectors : 05 65 // +3
Available Reserved Space : E8 98
POH 10162
MD5 OK
33.35MiB/s on avg (~299 hours)
--
Attachment 128668
Hmmm, I seem to be getting some performance degredation ... something triggered the drive to shift to storage mode rather then performance mode. The attached picture shows how each run starts fast at about 400meg per sec, then drops to around 200meg per sec.
Will secure erase and see if that fixes it!
Attachment 128682