Five years ago before Christmas I bought my first SSD – Crucial MX300 750GB. I have put it into my linux server running some web hosting (running this blog for example), my emails. Second MX300 was put into Linux MD Raid1. Disk were running two years in this setup, then I have migrated into virtualized setup, running ESXi, booted from USB drive. SSD were re-used and running as hw Raid 1 using LSI-9211 card.
About 5 to 10 VM with different write usage were running from this disks, just write cache need to be enabled. Most write intensive was zabbix (database), other like tvheadend and sip (asterisk) was writing nearly nothing.
Only problem with ESXi and LSI raid was that, SMART values (including SSD wearout) was unavailable. After 3 more yeas I have planned migration to ESXi 7. But vmware had done changed in ESXi USB disk layout which resulted into problems and they suddenly stopped supporting USB/SD cards as boot device. Meanwhile Proxmox PVE have ZFS support, so I decided to have a try. Now after migration I can see MX300 wearout levels:
MX300 Wearout after 5 years
MX300 750 have 5 years warranty and 220TBW according to spec.
202: Percent_Lifetime_Remain 49 % 9: Power on Hours 41445 = 4.727926 Years 246: Total_LBAs_Written 193541276459 = 90.12 TB
This gives 53,4 GB/day average.
smartctl 7.2 2020-12-30 r5155 [x86_64-linux-5.11.22-5-pve] (local build) Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org === START OF INFORMATION SECTION === Model Family: Crucial/Micron Client SSDs Device Model: Crucial_CT750MX300SSD1 Serial Number: -- LU WWN Device Id: -- Firmware Version: M0CR011 User Capacity: 750,156,374,016 bytes [750 GB] Sector Size: 512 bytes logical/physical Rotation Rate: Solid State Device Form Factor: 2.5 inches TRIM Command: Available, deterministic, zeroed Device is: In smartctl database [for details use: -P show] ATA Version is: ACS-3 T13/2161-D revision 5 SATA Version is: SATA 3.2, 6.0 Gb/s (current: 6.0 Gb/s) Local Time is: Sun Nov 14 10:23:05 2021 CET SMART support is: Available - device has SMART capability. SMART support is: Enabled 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 - 41445 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 57 171 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 051 051 000 Old_age Always - 499 174 Unexpect_Power_Loss_Ct 0x0032 100 100 000 Old_age Always - 37 183 SATA_Interfac_Downshift 0x0032 100 100 000 Old_age Always - 0 184 Error_Correction_Count 0x0032 099 099 000 Old_age Always - 1 187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always - 0 194 Temperature_Celsius 0x0022 075 049 000 Old_age Always - 25 (Min/Max 22/51) 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 - 0 202 Percent_Lifetime_Remain 0x0030 051 051 001 Old_age Offline - 49 206 Write_Error_Rate 0x000e 100 100 000 Old_age Always - 0 246 Total_LBAs_Written 0x0032 100 100 000 Old_age Always - 193541276459 247 Host_Program_Page_Count 0x0032 100 100 000 Old_age Always - 6210426897 248 FTL_Program_Page_Count 0x0032 100 100 000 Old_age Always - 14584561324 180 Unused_Reserve_NAND_Blk 0x0033 000 000 000 Pre-fail Always - 3566 210 Success_RAIN_Recov_Cnt 0x0032 100 100 000 Old_age Always - 0