I added this drive so that my boot pool is mirrored (the database is also on this drive) and I notice that smart attribute 231 SSD_Life_Left is dropping 1 point every 35-40 days. The drive is 120GB and it is mostly empty:
#>zfs list freenas-boot
NAME USED AVAIL REFER MOUNTPOINT
freenas-boot 13.0G 94.6G 176K none
It seems a bit excessive given the amount of work being done these days - or am I off base? Do I need to set a tuable for optimum drive life?
20200625_050000~KINGSTON_SA400S37120G
20200804_050000~KINGSTON_SA400S37120G
#>zfs list freenas-boot
NAME USED AVAIL REFER MOUNTPOINT
freenas-boot 13.0G 94.6G 176K none
It seems a bit excessive given the amount of work being done these days - or am I off base? Do I need to set a tuable for optimum drive life?
20200625_050000~KINGSTON_SA400S37120G
Code:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 1 Raw_Read_Error_Rate 0x0032 100 100 000 Old_age Always - 100 9 Power_On_Hours 0x0032 100 100 000 Old_age Always - 3856 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 16 148 Unknown_Attribute 0x0000 100 100 000 Old_age Offline - 0 149 Unknown_Attribute 0x0000 100 100 000 Old_age Offline - 0 167 Write_Protect_Mode 0x0000 100 100 000 Old_age Offline - 0 168 SATA_Phy_Error_Count 0x0012 100 100 000 Old_age Always - 0 169 Bad_Block_Rate 0x0000 100 100 000 Old_age Offline - 0 170 Bad_Blk_Ct_Erl/Lat 0x0000 100 100 010 Old_age Offline - 0/0 172 Erase_Fail_Count 0x0032 100 100 000 Old_age Always - 0 173 MaxAvgErase_Ct 0x0000 100 100 000 Old_age Offline - 0 181 Program_Fail_Count 0x0032 100 100 000 Old_age Always - 0 182 Erase_Fail_Count 0x0000 100 100 000 Old_age Offline - 0 187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always - 0 192 Unsafe_Shutdown_Count 0x0012 100 100 000 Old_age Always - 11 194 Temperature_Celsius 0x0022 043 054 000 Old_age Always - 43 (Min/Max 31/54) 196 Reallocated_Event_Count 0x0032 100 100 000 Old_age Always - 0 199 SATA_CRC_Error_Count 0x0032 100 100 000 Old_age Always - 0 218 CRC_Error_Count 0x0032 100 100 000 Old_age Always - 0 231 SSD_Life_Left 0x0000 094 094 000 Old_age Offline - 94 233 Flash_Writes_GiB 0x0032 100 100 000 Old_age Always - 1568 241 Lifetime_Writes_GiB 0x0032 100 100 000 Old_age Always - 3205 242 Lifetime_Reads_GiB 0x0032 100 100 000 Old_age Always - 392 244 Average_Erase_Count 0x0000 100 100 000 Old_age Offline - 120 245 Max_Erase_Count 0x0000 100 100 000 Old_age Offline - 157 246 Total_Erase_Count 0x0000 100 100 000 Old_age Offline - 24281
20200804_050000~KINGSTON_SA400S37120G
Code:
SMART Attributes Data Structure revision number: 1 Vendor Specific SMART Attributes with Thresholds: ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 1 Raw_Read_Error_Rate 0x0032 100 100 000 Old_age Always - 100 9 Power_On_Hours 0x0032 100 100 000 Old_age Always - 4812 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 16 148 Unknown_Attribute 0x0000 100 100 000 Old_age Offline - 0 149 Unknown_Attribute 0x0000 100 100 000 Old_age Offline - 0 167 Write_Protect_Mode 0x0000 100 100 000 Old_age Offline - 0 168 SATA_Phy_Error_Count 0x0012 100 100 000 Old_age Always - 0 169 Bad_Block_Rate 0x0000 100 100 000 Old_age Offline - 0 170 Bad_Blk_Ct_Erl/Lat 0x0000 100 100 010 Old_age Offline - 0/0 172 Erase_Fail_Count 0x0032 100 100 000 Old_age Always - 0 173 MaxAvgErase_Ct 0x0000 100 100 000 Old_age Offline - 0 181 Program_Fail_Count 0x0032 100 100 000 Old_age Always - 0 182 Erase_Fail_Count 0x0000 100 100 000 Old_age Offline - 0 187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always - 0 192 Unsafe_Shutdown_Count 0x0012 100 100 000 Old_age Always - 11 194 Temperature_Celsius 0x0022 043 056 000 Old_age Always - 43 (Min/Max 31/56) 196 Reallocated_Event_Count 0x0032 100 100 000 Old_age Always - 0 199 SATA_CRC_Error_Count 0x0032 100 100 000 Old_age Always - 0 218 CRC_Error_Count 0x0032 100 100 000 Old_age Always - 0 231 SSD_Life_Left 0x0000 093 093 000 Old_age Offline - 93 233 Flash_Writes_GiB 0x0032 100 100 000 Old_age Always - 2178 241 Lifetime_Writes_GiB 0x0032 100 100 000 Old_age Always - 4236 242 Lifetime_Reads_GiB 0x0032 100 100 000 Old_age Always - 471 244 Average_Erase_Count 0x0000 100 100 000 Old_age Offline - 140 245 Max_Erase_Count 0x0000 100 100 000 Old_age Offline - 157 246 Total_Erase_Count 0x0000 100 100 000 Old_age Offline - 28205