The original post: /r/datahoarder by /u/Engine-International on 2024-10-01 19:40:39.
One of my Crucial MX500's has a huge TBW value (I'm thinking it was caused by a wrong Windows migration).
The factory specified tbw is 150, but I measure 588TBW on this one.
Could this be real or a software bug?
First I ran a short and a conveyance self-test on it, both passed.
The long stuck with an error, so I did a destruct on it with the KDE partition manager.
Now the long runs without errors and if I read it right, there are plenty of spare sectors.
Do you think this SSD is still usable?
I attach the smartctl and badblocks report below:
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
General SMART Values:
Offline data collection status: (0x82) Offline data collection activity
was completed without error.
Auto Offline Data Collection: Enabled.
Self-test execution status: ( 0) The previous self-test routine completed
without error or no self-test has ever
been run.
Total time to complete Offline
data collection: ( 0) seconds.
Offline data collection
capabilities: (0x7b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
Conveyance Self-test supported.
Selective Self-test supported.
SMART capabilities: (0x0003) Saves SMART data before entering
power-saving mode.
Supports SMART auto save timer.
Error logging capability: (0x01) Error logging supported.
General Purpose Logging supported.
Short self-test routine
recommended polling time: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 30) minutes.
Conveyance self-test routine
recommended polling time: ( 2) minutes.
SCT capabilities: (0x0031) SCT Status supported.
SCT Feature Control supported.
SCT Data Table supported.
SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x002f 100 100 000 Pre-fail Always - 0
5 Reallocate_NAND_Blk_Cnt 0x0032 100 100 010 Old_age Always - 0
9 Power_On_Hours 0x0032 100 100 000 Old_age Always - 8039
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 53
171 Program_Fail_Count 0x0032 100 100 000 Old_age Always - 0
172 Erase_Fail_Count 0x0032 100 100 000 Old_age Always - 0
173 Ave_Block-Erase_Count 0x0032 247 247 000 Old_age Always - 5488
174 Unexpect_Power_Loss_Ct 0x0032 100 100 000 Old_age Always - 18
180 Unused_Reserve_NAND_Blk 0x0033 000 000 000 Pre-fail Always - 47
183 SATA_Interfac_Downshift 0x0032 100 100 000 Old_age Always - 0
184 Error_Correction_Count 0x0032 100 100 000 Old_age Always - 0
187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always - 0
194 Temperature_Celsius 0x0022 062 035 000 Old_age Always - 38 (Min/Max 0/65)
196 Reallocated_Event_Count 0x0032 100 100 000 Old_age Always - 0
197 Current_Pending_ECC_Cnt 0x0032 100 100 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0030 100 100 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x0032 100 100 000 Old_age Always - 1
202 Percent_Lifetime_Remain 0x0030 247 247 001 Old_age Offline - 109
206 Write_Error_Rate 0x000e 100 100 000 Old_age Always - 0
210 Success_RAIN_Recov_Cnt 0x0032 100 100 000 Old_age Always - 0
246 Total_LBAs_Written 0x0032 100 100 000 Old_age Always - 1263022909412
247 Host_Program_Page_Count 0x0032 100 100 000 Old_age Always - 20888923422
248 FTL_Program_Page_Count 0x0032 100 100 000 Old_age Always - 37710666859
SMART Error Log Version: 1
Invalid Error Log index = 0x07 (T13/1321D rev 1c Section 8.41.6.8.2.2 gives valid range from 1 to 5)
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Extended offline Completed without error 00% 8037 -
# 2 Conveyance offline Completed without error 00% 8012 -
# 3 Short offline Completed without error 00% 8012 -
badblocks -wsv /dev/sda
Checking for bad blocks in read-write mode
From block 0 to 488386583
Testing with pattern 0xaa: done
Reading and comparing: done
Testing with pattern 0x55: done
Reading and comparing: done
Testing with pattern 0xff: done
Reading and comparing: done
Testing with pattern 0x00: done
Reading and comparing: done
Pass completed, 0 bad blocks found. (0/0/0 errors)