4PB Written, 2250 Sectors Reallocated

Another milestone reached - 4PB written to the SSD, and it is still working fine! Sector fails have risen to 2254, but these have all occurred during erasure and so have not introduced any unrecoverable errors yet. Program Fail errors still stand at zero, as do Reported Uncorrectable. The SSD has reallocated 39% of its reserved space, with 61% still remaining.

ID# ATTRIBUTE_NAME          VALUE WORST THRESH TYPE      RAW_VALUE
  5 Reallocated_Sector_Ct   061   061   010    Pre-fail  2254
  9 Power_On_Hours          099   099   000    Old_age   3558
 12 Power_Cycle_Count       099   099   000    Old_age   170
177 Wear_Leveling_Count     038   038   000    Pre-fail  3713
179 Used_Rsvd_Blk_Cnt_Tot   061   061   010    Pre-fail  2254
181 Program_Fail_Cnt_Total  100   100   010    Old_age   0
182 Erase_Fail_Count_Total  061   061   010    Old_age   2254
183 Runtime_Bad_Block       061   061   010    Pre-fail  2254
187 Reported_Uncorrect      100   100   000    Old_age   0
190 Airflow_Temperature_Cel 064   060   000    Old_age   36
195 Hardware_ECC_Recovered  200   200   000    Old_age   0
199 UDMA_CRC_Error_Count    100   100   000    Old_age   0
235 Unknown_Attribute       099   099   000    Old_age   30
241 Total_LBAs_Written      097   097   000    Old_age   7814058492462

Once again we will power off the server for a week and read back all the data on the SSD to check for retention. We will then secure erase the disk and increase the amount of reserved space (currently at the default) to 10% via the Samsung Magician software, and see what difference that makes to the SMART stats.