SMART error from Crucial m4 - Average Block-Erase Count

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SMART error from Crucial m4 - Average Block-Erase Count

Hi

 

I've started getting SMART errors from my Crucial M4 which I currently use as my main boot drive. Seems to be the Average Block-Erase Count that is causing the error. Should I be replacing the drive urgently or is it likely to last a fair while longer?

 

I've included the CrystalDiskInfo report below.

 

Thanks

Stuart

 

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CrystalDiskInfo 8.0.0 (C) 2008-2018 hiyohiyo
Crystal Dew World : https://crystalmark.info/
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(1) M4-CT128M4SSD2
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Model : M4-CT128M4SSD2
Firmware : 070H
*removed personal information*
Disk Size : 128.0 GB (8.4/128.0/128.0/128.0)
Buffer Size : Unknown
Queue Depth : 32
# of Sectors : 250069680
Rotation Rate : ---- (SSD)
Interface : Serial ATA
Major Version : ACS-2
Minor Version : ATA8-ACS version 6
Transfer Mode : SATA/600 | SATA/600
Power On Hours : 31171 hours
Power On Count : 697 count
Wear Level Count : 2758
Temperature : Unknown
Health Status : Bad (9 %)
Features : S.M.A.R.T., APM, 48bit LBA, NCQ, TRIM
APM Level : 00FEh [ON]
AAM Level : ----
Drive Letter : C:

-- S.M.A.R.T. --------------------------------------------------------------
ID Cur Wor Thr RawValues(6) Attribute Name
01 100 100 _50 000000000000 Raw Read Error Rate
05 100 100 _10 000000000000 Reallocated NAND Blocks
09 100 100 __1 0000000079C3 Power On Hours
0C 100 100 __1 0000000002B9 Power Cycle Count
AA 100 100 _10 000000000000 Reserved Block Count
AB 100 100 __1 000000000000 Program Fail Count
AC 100 100 __1 000000000000 Erase Fail Count
AD __9 __9 _10 000000000AC6 Average Block-Erase Count
AE 100 100 __1 000000000027 Unexpected Power Loss Count
B5 100 100 __1 0A8D05340558 Unaligned Access Count
B7 100 100 __1 000000000000 SATA Interface Downshift
B8 100 100 _50 000000000000 Error Correction Count
BB 100 100 __1 000000000000 Reported Uncorrectable Errors
BC 100 100 __1 000000000000 Command Timeout Count
BD 100 100 __1 000000000051 Factory Bad Block Count
C2 100 100 __0 000000000000 Temperature
C3 100 100 __1 0000000000C4 Cumulative ECC Bit Correction Count
C4 100 100 __1 000000000000 Reallocation Event Count
C5 100 100 __1 000000000000 Current Pending Sector Count
C6 100 100 __1 000000000000 Smart Off-line Scan Uncorrectable Error Count
C7 100 100 __1 000000000000 Ultra DMA CRC Error Rate
CA __9 __9 __1 00000000005B Percent Lifetime Used
CE 100 100 __1 000000000000 Write Error Rate

-- IDENTIFY_DEVICE ---------------------------------------------------------
0 1 2 3 4 5 6 7 8 9
000: 0440 3FFF C837 0010 0000 0000 003F 0000 0000 0000
010: 3030 3030 3030 3030 3131 3430 3033 3141 4635 3733
020: 0000 0000 0000 3037 3048 2020 2020 4D34 2D43 5431
030: 3238 4D34 5353 4432 2020 2020 2020 2020 2020 2020
040: 2020 2020 2020 2020 2020 2020 2020 8010 4000 2F00
050: 4001 0000 0000 0007 3FFF 0010 003F FC10 00FB 0110
060: C2B0 0EE7 0000 0007 0003 0078 0078 0078 0078 4000
070: 0000 0000 0000 0000 0000 001F 150E 0006 004C 0040
080: 03F8 0028 746B 7D09 6163 7469 BC09 6163 203F 0001
090: 0001 00FE FFFE 0000 0000 0000 0000 0000 0000 0000
100: C2B0 0EE7 0000 0000 0000 0008 4000 0000 500A 0751
110: 031A F573 0000 0000 0000 0000 0000 0000 0000 401E
120: 401C 0000 0000 0000 0000 0000 0000 0000 0029 3037
130: 3048 2E30 372E 3030 0000 0000 0000 3130 3534 2020
140: 2020 3341 4C37 3130 3439 2020 2020 0000 0000 0000
150: 0000 0000 0000 0000 0000 0000 0000 0000 0000 0001
160: 0000 0000 0000 0000 0000 0000 0000 0000 0003 0001
170: 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
180: 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
190: 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
200: 0000 0000 0000 0000 0000 0000 003D 0000 0000 4000
210: 0000 0000 0000 0001 0000 0000 0000 0001 0000 0000
220: 0000 0000 103F 0000 0000 0000 0000 0000 0000 0000
230: 0000 0000 0000 0000 0001 00FF 0000 0000 0000 0000
240: 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
250: 0000 0000 0000 0000 0000 E3A5

-- SMART_READ_DATA ---------------------------------------------------------
+0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +A +B +C +D +E +F
000: 10 00 01 2F 00 64 64 00 00 00 00 00 00 00 05 33
010: 00 64 64 00 00 00 00 00 00 00 09 32 00 64 64 C3
020: 79 00 00 00 00 00 0C 32 00 64 64 B9 02 00 00 00
030: 00 00 AA 33 00 64 64 00 00 00 00 00 00 00 AB 32
040: 00 64 64 00 00 00 00 00 00 00 AC 32 00 64 64 00
050: 00 00 00 00 00 00 AD 33 00 09 09 C6 0A 00 00 00
060: 00 00 AE 32 00 64 64 27 00 00 00 00 00 00 B5 22
070: 00 64 64 58 05 34 05 8D 0A 00 B7 32 00 64 64 00
080: 00 00 00 00 00 00 B8 33 00 64 64 00 00 00 00 00
090: 00 00 BB 32 00 64 64 00 00 00 00 00 00 00 BC 32
0A0: 00 64 64 00 00 00 00 00 00 00 BD 0E 00 64 64 51
0B0: 00 00 00 00 00 00 C2 22 00 64 64 00 00 00 00 00
0C0: 00 00 C3 3A 00 64 64 C4 00 00 00 00 00 00 C4 32
0D0: 00 64 64 00 00 00 00 00 00 00 C5 32 00 64 64 00
0E0: 00 00 00 00 00 00 C6 30 00 64 64 00 00 00 00 00
0F0: 00 00 C7 32 00 64 64 00 00 00 00 00 00 00 CA 18
100: 00 09 09 5B 00 00 00 00 00 00 CE 0E 00 64 64 00
110: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
120: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
130: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
140: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
150: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
160: 00 00 00 00 00 00 00 00 00 00 86 00 82 00 00 7B
170: 03 00 01 00 02 09 03 00 00 00 00 00 00 00 00 00
180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
190: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1A0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1B0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1C0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1D0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1E0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1F0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 3F

-- SMART_READ_THRESHOLD ----------------------------------------------------
+0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +A +B +C +D +E +F
000: 10 00 01 32 00 00 00 00 00 00 00 00 00 00 05 0A
010: 00 00 00 00 00 00 00 00 00 00 09 01 00 00 00 00
020: 00 00 00 00 00 00 0C 01 00 00 00 00 00 00 00 00
030: 00 00 AA 0A 00 00 00 00 00 00 00 00 00 00 AB 01
040: 00 00 00 00 00 00 00 00 00 00 AC 01 00 00 00 00
050: 00 00 00 00 00 00 AD 0A 00 00 00 00 00 00 00 00
060: 00 00 AE 01 00 00 00 00 00 00 00 00 00 00 B5 01
070: 00 00 00 00 00 00 00 00 00 00 B7 01 00 00 00 00
080: 00 00 00 00 00 00 B8 32 00 00 00 00 00 00 00 00
090: 00 00 BB 01 00 00 00 00 00 00 00 00 00 00 BC 01
0A0: 00 00 00 00 00 00 00 00 00 00 BD 01 00 00 00 00
0B0: 00 00 00 00 00 00 C2 00 00 00 00 00 00 00 00 00
0C0: 00 00 C3 01 00 00 00 00 00 00 00 00 00 00 C4 01
0D0: 00 00 00 00 00 00 00 00 00 00 C5 01 00 00 00 00
0E0: 00 00 00 00 00 00 C6 01 00 00 00 00 00 00 00 00
0F0: 00 00 C7 01 00 00 00 00 00 00 00 00 00 00 CA 01
100: 00 00 00 00 00 00 00 00 00 00 CE 01 00 00 00 00
110: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
120: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
130: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
140: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
150: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
160: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
170: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
190: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1A0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1B0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1C0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1D0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1E0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1F0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 5B

 

2 Replies
JEDEC Jedi

Re: SMART error from Crucial m4 - Average Block-Erase Count

It seems that you have been using this M4 for a few years now Smiley Happy The SMART attribute you are referring to is related with Wear Level Count: 2758. The NAND flash memory in M4 drive is rated for 3000 program/erase cycles and you are close to this limit - that is the reason for SMART warning. 


In practice, however, this NAND type can possibly handle few times more p/e cycles. So if the drive is in a mission-critical system it should probably be replaced. If that is not the case just remember to regularly back up your data and the drive is likely to last a fair while longer, imho.

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Crucial Employee

Re: SMART error from Crucial m4 - Average Block-Erase Count

What @bogdan has said is accurate.

You've essentially used up ~92% of the wear life on your drive.

000000000AC6 hex converted to deciaml is 2758. M4 erase life is 3000, so 2758/3000 = 92%

Will the drive die when you hit 100%? Nope, it will continue working fine, but beyond that point as a manufacture we esentially can't guarantee the reliablity of stored data. However there have been tests where people have esentially hammered SSD way past their rated wear life, the point they've gone several fold over the rated life without any noticible problems, so this just shows you how high industry strandards for wear wear life on SSDs typically are.

I would disable the SMART reporting in your BIOS so you don't get annoying popups everytime you turn on Windows, but the SMART data on your drive otherwise looks fine, and the drive should still work great as a boot drive for many years. As always,  reguarly backup any important data, and don't use this SSD for any mission critical operations like bogdan pointed out.





Crucial_Benny, Micron CPG Support, US


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