SSD Write Endurance 25nm Vs 34nm

[Christopher]

Samsung 830 256GB Day 213

(GiB) 5,278,762
(TiB) 5,155
(PiB) 5.06


(Avg) 298.27 MB/s over the past 2000+ hours

(B1) Wear Leveling Count: 22,827

(B6) Erase Fail Count: 12
(B6) Runtime Bad Block Count: 17
(05) Reallocated Sectors: 69632

(POH) 5169


-------------------

More block failures -- 0 program, 12 erase, so 5 are read failures -- not a good sign. It's been over 138 days and 16 minutes since the last stoppage... I just can't seem to bring myself to stop it now to perform some testing on the 830.

[acesea]

Not really. The 830 uses more power on load than new drives using sub 32nm Toggle flash (though idle is superb). You'd only experience those higher temps if you're continuously writing to the drive. Otherwise, it produces less heat. It's negligible for the most part.

Doesn't the 830 use sub 32nm Toggle flash? Some review sites show 830 use 27nm Toggle-Mode 1.1 MLC. Do the 830 nand vary depending on production date and so some older units have 32nm+?

[Christopher]

Doesn't the 830 use sub 32nm Toggle flash? Some review sites show 830 use 27nm Toggle-Mode 1.1 MLC. Do the 830 nand vary depending on production date and so some older units have 32nm+?

I believe the 830's flash is on a half node or something between 32nm and 25nm. As far as I know, the 830 uses all the same toggle 1.0 flash. For the 64-256GB models, the flash is 32gbit per die, while the 512GB uses 64gbit dies. That way, the 256 and 512s have the same number of die.

I believe the 430 switched from 32nm to 27nm, but they had different SKUs.

[Christopher]

Another read failure for the 830;

73728 reallocated sectors, 18 reallocation events (12 erase, 6 read, 0 program). And it seems to be getting faster on average after months of steady average performance.

[Kain665]

Doing some testing on my Vertex 4 512GB. What units is the RAW host writes value in? Sectors? Bytes? It's written 800~900Gb so far.

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[Christopher]

If it were in sectors, you'd have 4TB in host writes.

[Chrysalis]

any news on planned 840 TLC tests?

[canthearu]

Well, I would test an 840 if I could buy one .... but I can't ... not for love or money at the moment.

[kensiko]

ETA at newegg for 840 TLC is Tuesday.

[Christopher]

I never thought I'd be excited about a TLC drive, but I am genuinely interested in getting my hands on the 840 TLC.

[Kain665]

It is in sectors. That's really strange, apparently the WA has been really high because I've really only written about 1-2TB over the few weeks I've had this drive.

[Anvil]

Kingston SSDNow 40GB (X25-V)

1308.4TB Host writes 42873488*32)
Reallocated sectors : 05 768 -
Available Reserved Space : E8 86 (86)
POH 11798
MD5 OK

31.70MiB/s on avg (~161 hours)

--

[Christopher]

Samsung 830 256GB Day 216

(GiB) 5,352,544
(TiB) 5,227
(PiB) 5.13


(Avg) 298.45 MB/s over the past 2000+ hours

(B1) Wear Leveling Count: 23,144

(B6) Erase Fail Count: 12
(B6) Runtime Bad Block Count: 19
(05) Reallocated Sectors: 77824

(POH) 5238


-------------------

Another read failure.

[B.A.T]

Still going strong
Here are todays update:

m4
1814.3018 TiB
7451 hours
Avg speed 74.33 MiB/s.
AD 104 to 84
P/E 31222
C3 8457546 to 18643515
01 2285 to 4903 (1)
CE 90
MD5 OK.
Reallocated sectors : 00


Intel X25-E 64GB
1.17 PiB
3915-30=3885 hours
Reallocated sectors : 207 to 38
Available Reserved space: 78 to 75
MWI= 92
MD5 =OK
81.17 MiB/s on avg


Mtron Pro 7025 32GB
Paused until new firmware is updated.

OCZ Vertex 1 120GB
Will start after an update to the latest firmware.

[Anvil]

Well, I would test an 840 if I could buy one .... but I can't ... not for love or money at the moment.

Looks like general availability is imminent.

[kensiko]

All out of stock

[Christopher]

I'm trying to get one of both 840s. I have big plans for them.

[Anvil]

Kingston SSDNow 40GB (X25-V)

1313.71TB Host writes 43047921*32)
Reallocated sectors : 05 768 -
Available Reserved Space : E8 86 (86)
POH 11798
MD5 OK

31.69MiB/s on avg (~210 hours)

--

[B.A.T]

Here are todays update:

m4
1826.5500 TiB
7500 hours
Avg speed 74.20 MiB/s.
AD 84 to 77
P/E 31434
C3 18643515 to 25789687
01 4903 to 6832 (1)
CE 90
MD5 OK.
Reallocated sectors : 00


Intel X25-E 64GB
1.19 PiB
3965-30=3935 hours
Reallocated sectors : 38 to 76
Available Reserved space: 75 to 74
MWI= 92
MD5 =OK
79.98 MiB/s on avg


Mtron Pro 7025 32GB
Paused until new firmware is updated.

OCZ Vertex 1 120GB
Will start after an update to the latest firmware.

[Christopher]

Samsung 830 256GB Day 219

(GiB) 5,413,221
(TiB) 5,286
(PiB) 5.19


(Avg) 298.51 MB/s over the past 2500+ hours

(B1) Wear Leveling Count: 23,144

(B6) Erase Fail Count: 13
(B6) Runtime Bad Block Count: 21
(05) Reallocated Sectors: 86016

(POH) 5296


-------------------

Two more reallocations, one read failure and one more erase failure.

Another read failure.

[kensiko]

840 TLC in stock.

Who's first?

[Christopher]

The 830 dropped 2 more read failures over the past ten hours, making 23 total (13 erase, 10 read).

[Christopher]

Samsung 830 256GB Day 221

(GiB) 5,480,044
(TiB) 5,351
(PiB) 5.26


(Avg) 298.66 MB/s over the past 2500+ hours

(B1) Wear Leveling Count: 23,693

(B6) Erase Fail Count: 13
(B6) Runtime Bad Block Count: 26
(05) Reallocated Sectors: 106496

(POH) 5369


-------------------

Even more read failures.... this number of read failures was the end of the Plextor, 3 OCZs, and probably a few others. The 830 seems perfectly fine though.

[canthearu]

The 830 is also twice the size of the Plextor

And the OCZ drives tended to start dieing after a couple of hundred erase block failures, the samsung is only on 40.

Edit: The plextor reached almost 6 million reallocated sectors before failing outright.

http://www.xtremesystems.org/forums/...=1#post5117724

[B.A.T]

Here are todays update:

m4
1850.0077 TiB
7595 hours
Avg speed 74.08 MiB/s.
AD 77 to 63
P/E 31842
C3 25789687 to 48482335
01 6832 to 13329 (1)
CE 90
MD5 OK.
Reallocated sectors : 00


Intel X25-E 64GB
1.19 PiB
3965-30=3935 hours
Reallocated sectors : 76 to 173
Available Reserved space: 74 to 71
MWI= 92
MD5 =OK
79.98 MiB/s on avg


Mtron Pro 7025 32GB
Paused until new firmware is updated.

OCZ Vertex 1 120GB
Will start after an update to the latest firmware.