Raivo Laanemets. Software consultant.

Crucial M500 SSD 1.5 years/4 terabytes later

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My Crucial M500 256GB SSD is still in good shape after 1.5 years of use. I got it at the beginning of 2014 as a part of the system upgrade. The drive has been powered on for 7800 hours and 4.07 TB of data has been written to it.

I'm running dual-booted system with Slackware and Windows 8.1. The Windows installation is used only for some casual gaming. Slackware is my work desktop. 4.07 TB write figure seems to be a bit on the high side but not that surprising as I work a lot with virtual machines, Docker images and backup dumps. The drive has 98% of lifetime left according to the diagnosis tools.

Crucial has Storage Executive tool that extracts data from drive's SMART interface and also displays Crucial-specific attribute values in a meaningful way. Unfortunately it requires Windows. On Linux, the smartctl tool can be used but it does not display some attributes in a readable way. Below is my raw output:

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       -       4
  5 Reallocated_Sector_Ct   0x0033   100   100   000    Pre-fail  Always       -       0
  9 Power_On_Hours          0x0032   100   100   000    Old_age   Always       -       7855
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       1322
171 Unknown_Attribute       0x0032   100   100   000    Old_age   Always       -       0
172 Unknown_Attribute       0x0032   100   100   000    Old_age   Always       -       0
173 Unknown_Attribute       0x0032   098   098   000    Old_age   Always       -       82
174 Unknown_Attribute       0x0032   100   100   000    Old_age   Always       -       117
180 Unused_Rsvd_Blk_Cnt_Tot 0x0033   000   000   000    Pre-fail  Always       -       4066
183 Runtime_Bad_Block       0x0032   100   100   000    Old_age   Always       -       0
184 End-to-End_Error        0x0032   100   100   000    Old_age   Always       -       0
187 Reported_Uncorrect      0x0032   100   100   000    Old_age   Always       -       0
194 Temperature_Celsius     0x0022   069   056   000    Old_age   Always       -       31 (0 44 255 246 0)
196 Reallocated_Event_Count 0x0032   100   100   000    Old_age   Always       -       16
197 Current_Pending_Sector  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       -       5
202 Data_Address_Mark_Errs  0x0031   098   098   000    Pre-fail  Offline      -       2
206 Flying_Height           0x000e   100   100   000    Old_age   Always       -       0
210 Unknown_Attribute       0x0032   100   100   000    Old_age   Always       -       0
246 Unknown_Attribute       0x0032   100   100   ---    Old_age   Always       -       7968515041
247 Unknown_Attribute       0x0032   100   100   ---    Old_age   Always       -       261841176
248 Unknown_Attribute       0x0032   100   100   ---    Old_age   Always       -       1045350350

I hope the drive serves me well for at least a year.


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