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AFAICR first reallocted sectors did occur at ~1.180GiB on Samsung 830 256GB, one would expect The Plextor behave similar at roughly 600GiB for a 128GB drive, but fortunately there is no sign of it.. I think it's more important living long time with bad blocks, handiling them etc than bad block amount.. But it still a good thing for The Plextor for now, considering it writes like a SLC drive, right :)
Stupid me does not really understand what I am seeing here and I have some questions if that is ok.
What is a sector? It seems a block on the 830 contains 4096 sectors. Are these bytes? I assume things can differ between NAND chips, so can you compare "reallocated sector" on the 830 with the intel G1 (why did the count suddenly go down??) ?
Intel 330 120GB
311.54TB Host writes
1.30TiB Host reads
Reallocated sectors : 05 0
Available Reserved Space : E8 100
MWI 65
[F1] Total LBAs Written 102086727
[F2] Total LBAs Read 42658
[F9] Total NAND Writes 224878GB
POH 785
MD5 OK
123.86MiB/s on avg (~35 hours)
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Kingston SSDNow 40GB (X25-V)
1064.05TB Host writes (34866899*32)
Reallocated sectors : 05 48
Available Reserved Space : E8 99
POH 9515
MD5 OK
34.32MiB/s on avg (~35 hours)
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Attachment 127897
I'll update the other stats tonight.
A sector is 512 bytes. An erase block is 2 meg in size, so each block contains 4096 of the 512 byte sectors.Quote:
Originally Posted by Conquistador SW
Whenever the samsung controller sees an erase failure, it marks the entire erase block as bad, so the bad block count increases 4096.
Not sure how comparable it is to the G1.Quote:
It seems a block on the 830 contains 4096 sectors. Are these bytes? I assume things can differ between NAND chips, so can you compare "reallocated sector" on the 830 with the intel G1 (why did the count suddenly go down??) ?
The reason why the G1 reallocated sector count went down was because the counter is only able to store a number between 0-255. Intel made a mistake putting the reallocated sector count inside the normalized value rather then the raw smart value. So when the normalized value reaches 255 and is incremented again, it loops back to 0.
Thanks! So these 8 blocks that failed (16MB) is not that much if I understand correctly.
No, they're not really all that much. The 830 has over 17GB of spare area, so it's got a lot of blocks to spare.Quote:
Originally Posted by Conquistador SW
Todays update:
m4
1107.2110 TiB
4639 hours
Avg speed 74.55 MiB/s.
AD 236 to 233
P/E 19068.
C3 3323
CE 58
MD5 OK.
Reallocated sectors : 00
http://www.diskusjon.no/index.php?ap...tach_id=495659
Intel X25-M G1 80GB
741.09 TiB
23929 hours
Reallocated sectors : 86 to 91
Available Reserved space: 63
MWI= 20 to 12
MD5 =OK
38.53 MiB/s on avg
http://www.diskusjon.no/index.php?ap...tach_id=495658
Intel X25-E 64GB
359.00 TiB
1110-30=1080 hours
Reallocated sectors : 0
Available Reserved space: 100
MWI= 97
MD5 =OK
92.01 MiB/s on avg
http://www.diskusjon.no/index.php?ap...tach_id=495660
Mtron Pro 7025 32GB
ASU write 69.0235 TiB
Host write 129,4164 TiB
Total host write 176,9520 TiB
Day 23
MWI= 95
MD5 =OK
48.20 MiB/s on avg
http://www.diskusjon.no/index.php?ap...tach_id=495661
The Mtron did its usual thing and dropped out early this morning. Runs normal now.
The M3P had it's first reallocation event today.
Attachment 127904Attachment 127905
amusing, it seems to me that the plextor was waiting for me to pop some reallocation..
at least i learnt what BB, B2 SMART ID's stands for for my CPP.. for example it lacks C4 and there was no way to see other than 05..
Oh wait... I was completely wrong. There was a reallocation event, but no actual reallocated sectors(?). Look at the M3p's SMART data again. Reallocated sector count still equals zero.
Attachment 127912
And, the 830 has another reallocation At 2.34PiB:
Attachment 127913
yeah is such a thing even possible? :D
what's the chance CDI reads smart datas wrong, what's Plextool saying ?
PlexTool reports "SSD Health" at 98%.Quote:
Originally Posted by kaktus1907
Attachment 127916
There is a 1.04FW available on Plextor's site, perhaps SMART data makes more sense now? It could just be that CDI reports reallocted sector count incorrectly, and it's really a different attribute.
I tried CDI5 (apparently CDI 5 can be downloaded in a more... aethetically feminine version)
Attachment 127917
Intel 330 120GB
325.30TB Host writes
1.34TiB Host reads
Reallocated sectors : 05 0
Available Reserved Space : E8 100
MWI 63
[F1] Total LBAs Written 10659453
[F2] Total LBAs Read 43793
[F9] Total NAND Writes 234809GB
POH 816
MD5 OK
123.90MiB/s on avg (~67 hours)
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Kingston SSDNow 40GB (X25-V)
1067.74TB Host writes (34987817*32)
Reallocated sectors : 05 50
Available Reserved Space : E8 99
POH 9547
MD5 OK
33.78MiB/s on avg (~67 hours)
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I'll be keeping the normal edition of CDI :)
1.04 has been available for some time, looks like it fixes some issues with the update process.
Yeah, CDI5 "anime edition" is better than HDSentinel's "Cheeses of the World edition", but not as fantastic as SSDLife's "lolcats version".
This is probably completely off but i'll bite
Plextool SSD health = 100 - BB (?)
The Time spent between BB 1 to 2 was ~13 hours and it writes ~950 GiB/h, therefore total write is 12380GiB.. There is left 98*12380 = 1214192GiB(1.186TiB).. it's already written ~700TiB, 1900TiB would be too good to be true for a 128GB 24nm MLC drive ?
Kaktus, I don't know that it works like that. The M3P is just a mystery, so I'd hate to make any predictions.
It is up to a 277.63MB/s average though, so it's getting faster.
Todays update:
m4
1113.8730 TiB
4665 hours
Avg speed 74.52 MiB/s.
AD 233 to 229
P/E 19180.
C3 3323
CE 58
MD5 OK.
Reallocated sectors : 00
http://www.diskusjon.no/index.php?ap...tach_id=495781
Intel X25-M G1 80GB
744.02 TiB
23955hours
Reallocated sectors : 91 to 100
Available Reserved space: 63
MWI= 12
MD5 =OK
32.68 MiB/s on avg
http://www.diskusjon.no/index.php?ap...tach_id=495782
Intel X25-E 64GB
367.28 TiB
1136-30=1106 hours
Reallocated sectors : 0
Available Reserved space: 100
MWI= 97
MD5 =OK
92.04 MiB/s on avg
http://www.diskusjon.no/index.php?ap...tach_id=495779
Mtron Pro 7025 32GB
ASU write 72.2915 TiB
Host write 135,6659 TiB
Total host write 183,2015 TiB
Day 24
MWI= 95 to 94
MD5 =OK
47.82 MiB/s on avg
http://www.diskusjon.no/index.php?ap...tach_id=495780
Samsung 830 256GB Day 100
(GiB) 2,449,403.13
(TiB) 2 391.99
(Avg) 295.11 MB/s
(B1) Wear Leveling Count: 10,625
(B6) Erase Fail Count: 9
(05) Reallocated Sectors: 36864
(POH) 2413
Plextor M3P 128GB Day 28
(GiB) 745,415.09
(TiB) 727.94
(Avg) 277.70MB/s
(POH) 763
(C4) Reallocation Event Count: 2
oh no seeing red on that Samsung hoping for 3,000,000GB
Well, it did make it the better part of a PiB (not the first PiB, but the second) without a reallocation, so I suppose I was due for two moreQuote:
Originally Posted by AMD_Freak
UPDATE
uh oh, the M3P now has 6 reallocations. MWI = attribute B1 - 100. It's now down to 97%, but I'm not filled with confidence. The M3p is probably past 6500 PE cycles.
Well, that is still more then twice the NAND's specified lifetime. BAT's M4 just seems to be an anomaly! If Micron was selling eMLC memory, BAT's m4 would be made with it :)Quote:
Originally Posted by Christopher
Sandisk Extreme G25 - 120gb - Day 23
Drive hours: 549
ASU GiB written: 234,306.45 GiB (228.81 TiB)
Avg MB/s: 122.47 MB/s (127 hours)
MD5: OK (verified off disk now)
Host GB written (F1): 235,714 GiB (230.19 TiB)
NAND writes (E9): 175,824 GiB (171.70 TiB)
Retired Block Count (05): 4 raw
Failure count (AB, AC): 1 program, 1 erase
Raw Error Rate (01): 116 normalized
Media Wearout Indicator (E7): 54 normalized
Wear Range Delta (B1): 4 raw
Reported Uncorrectable Errors (BB): 0 raw
Attachment 127933
Attachment 127939
This is not good.
wow another 22 in 24hr.. plextool is at 94% or 76%?
btw HDTune says Reported Uncorrectable Errors for BB
Intel 330 120GB
335.79TB Host writes
1.36TiB Host reads
Reallocated sectors : 05 0
Available Reserved Space : E8 100
MWI 62
[F1] Total LBAs Written 11003031
[F2] Total LBAs Read 44644
[F9] Total NAND Writes 242385GB
POH 841
MD5 OK
123.97MiB/s on avg (~92 hours)
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Kingston SSDNow 40GB (X25-V)
1070.54TB Host writes (35079465*32)
Reallocated sectors : 05 50
Available Reserved Space : E8 99
POH 9572
MD5 OK
33.58MiB/s on avg (~92 hours)
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@christopher
It doesn't have to mean much at all, if it does it would be a bit early for a 128GB drive, way better than specs though.