Most Crucial's are already flagged with Bad Blocks, found in the "Factory Bad Blocks" SMART attribute.
So, there are some bad blocks, I don't think I've got a single Crucial w/o some blocks flagged. (this should be adapted by all vendors)
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Most Crucial's are already flagged with Bad Blocks, found in the "Factory Bad Blocks" SMART attribute.
So, there are some bad blocks, I don't think I've got a single Crucial w/o some blocks flagged. (this should be adapted by all vendors)
Very few drives actually show the factory bad block count. Indilinx on Cognac firmware and the Microns/Crucials are the lone drives which do (that I can think of off the top of my head).
I think some of the keys to success are successfully identifying questionable blocks during manufacturing. But it's fairly impressive that so many drives are making it past MWI before flagging bad blocks at "runtime"
I've probably mentioned that some of the G2's had bad blocks right from the start. (X25-V's in particular)
Attachment 127452
The m4 is ahead of the X25-V, it made it just in time for 1PiB :)
@Christopher
Your plextor is about to exceed the octane's life ... that is a good thing.
I certainly hope so. That would be extremely depressing were it not to surpass the Octane.Quote:
Originally Posted by canthearu
And that ladys and gentlemen, is 1 PiB :bday2:
m4
1024.8467 TiB
4304 hours
Avg speed for the whole run is 69.35 MiB/s.
AD 24
P/E 17659.
CE 26
MD5 OK.
Reallocated sectors : 00
http://www.diskusjon.no/index.php?ap...tach_id=493784http://www.diskusjon.no/index.php?ap...tach_id=493783
Bravo! Think about all the drives which never made it this far... The list is long. And now we have two drives past 1PiB and one closing in on 2PiB.
It's been a bumpy ride, that's for sure :)
I hope the G1 also makes it to 1 PiB. 300TiB left and it's strugling some.
Time for a retention test on that m4 *mwhahahaha*
But grats on the 1PB ... I didn't think the m4 could make it.
The 256GB 830 is 4x the capacity of the 64GB M4, and does 4x the M4's average speed. Of course, the M3P is 2x the capacity and almost 4x the M4's average speed, so at this point, I'd say the Crucial with 18K PE cycles on it will still probably outlive the M3P.
Thank you! :)Quote:
Originally Posted by canthearu
The first m4 showed signs of failure from 700 TiB but this one has been nice all the way. I had plans to test retention after 1 PiB and I think I'll try some 6, 12 and 24h after the weekend.
Have you calculated the WA on those drives? The m4 got at the moment a very low WA and I think that is what's took it this far.Quote:
Originally Posted by Christopher
Sure the difference is huge between a drive that does write amp of 5 and a drive that does 1.5 ... however there shouldn't be much difference between a drive that does 1.1 write amp and a drive that does 1.05.Quote:
Originally Posted by B.A.T
My suspicion is that NAND manufacturing has improved over the last year on the 25nm node, and with newer firmware, have combined to make the NAND more resistant to write wear/bit fade. On the other hand, it could simply be luck ... it wouldn't take much to screw up a drive and make it panic lock.
The 830 is right at 1.10, the M3P I'm not so sure about, but I have no reason to believe its higher than 1.1ish. Practically every drive with TRIM should be able to manage 1.1 with endurance test loads.
Intel 330 120GB
168.17TB Host writes
Reallocated sectors : 05 0
Available Reserved Space : E8 100
MWI 82
[F1] Total LBAs Written 5510665
[F2] Total LBAs Read 30844 // not much use in this one
[F9] Total NAND Writes 121390GB
POH 430
MD5 OK
123.08MiB/s on avg (~17 hours)
--
Kingston SSDNow 40GB (X25-V)
1023.47TB Host writes
Reallocated sectors : 05 46
Available Reserved Space : E8 99
POH 9157
MD5 OK
36.02MiB/s on avg (~17 hours)
FYI, there is a 11.5 RST Beta driver out, TRIM in RAID 0 or 1 array.
http://www.station-drivers.com/page/intel%20raid.htm
11.5.0.1171 beta does not look to bring TRIM to raid yet.
I've tested on W8 which was where one thought it would start working, there is still something missing.
(tested on a P8P67 (rev1), orom 10.5.0.1034, it might require an updated orom, so, if there is an updated bios with 11.5... OROM I'll give it a try)
--------------------------------------------
Plextor M3P 128GB Day 12
312,528.18 GiB
305.20 TiB
272.31 MB/s Average
322 Hours
Rellocated Event Count 0
--------------------------------------------
Samsung 830 256GB Day 82
1,967,199.61 GiB
1,921.07 TiB
292.22 MB/s Average
1969 Hours
8648 Wear Leveling Count
MWI 1
7/0 Erase/Program Fail
Used Reserved Block Count: 14/28672 sectors
---------------------------------------------
Attachment 127463
That's 2,005,063GiB in LBA writes.
Kingston SSDNow 40GB (X25-V)
1.00PiB Host writes
Reallocated sectors : 05 46
Available Reserved Space : E8 99
POH 9167
MD5 OK
33.33MiB/s on avg (~9 hours)
Attachment 127469
Congratz Anvil!! :clap: A little over a year of writing for the poor little ssd... A true accomplishment to the toughness of the Intel controller and 34nm nand.
Might be time for the P/E graph again with all this milestones being passed.
Todays update:
m4
1029.0958 TiB
4321 hours
Avg speed 74.77 MiB/s.
AD gone from 24 to 21
P/E 17730.
CE 26
MD5 OK.
Reallocated sectors : 00
http://www.diskusjon.no/index.php?ap...tach_id=493858
Intel X25-M G1 80GB
700.68 TiB
23630hours
Reallocated sectors : 142 to 152
Available Reserved space: 75
MWI= 50 to 44
MD5 =OK
39.40 MiB/s on avg
http://www.diskusjon.no/index.php?ap...tach_id=493857
Intel X25-E 64GB
235.72 TiB
718-30=688 hours
Reallocated sectors : 0
Available Reserved space: 100
MWI= 98
MD5 =OK
92.53 MiB/s on avg
http://www.diskusjon.no/index.php?ap...tach_id=493859
Mtron Pro 7025 32GB
ASU write 21.4589 TiB
Host write 39,1834 TiB
Total host write 86,7190 TiB
Day 6
MWI= 99 to 98
MD5 =OK
47.04 MiB/s on avg
http://www.diskusjon.no/index.php?ap...tach_id=493860
A lot of things going on at the same time now. 1 PiB for the m4 today. The G1 passed 700 TiB and are going through a retention test tomorrow and I had a deja-vu today.
The Mtron pulled a Kingston V+100 on me and dropped out earlier today. Lets just hope it'll not repeat that to much otherwise I'll get really tired of restarting my endruance rig.
On the other hand the mwi dropped from 99 to 98 after 21.4589 TiB of ASU write. To be more accurate I need it to drop another to 97 just to be sure how much host write it takes to make it drop 1%.
I was thinking of testing retention on the m4 but then I might miss the chance to get it into a read only state. What do you think?
Oh how I hope that Sammy makes it to 2 PiB :D I was surprised when it hit 1.5.
I must say I'm not sure what to think of the X25-E already dropping its MWI to 98, shouldn't SLC outlive MLC by a LOOOOOOOOOOOOONG shot? As far as I'm aware, the X25-E is rated at 100,000 P/E cycles. That's something like 72 GB/day for a century.
It took 150 TiB to drop 1%. that is 14.6 PiB not taking into account WA without trim. I think it'll last a very long time but we just have to wait and see if the drop is going at the same rate or if it changes.
Edit:
100K*80GB=8PB
MWI shows better than the spec.
This is what happens when you browse the forums late at night, I read it as 23.572 TiB :/
An easy mistake to make :) At least the X25-E looks better now then?
I'm curious to see if mwi follows P/E of 1000=80 TB or like now with 150 TiB.
I'm absolutely certain that there is no read only mode for SSDs. (my vertex 4 wasn't readonly ... just crashing on write/erase activity)Quote:
Originally Posted by B.A.T
I think the Samsung 470 reached a read only mode before it died.