Samsung "Enterprise" 2.5" SATA SSD Doesn't Show Remaining Health Percentage #288
Description
I have a Samsung SM863 960.1 GB SATA 2.5 inch SSD, that, for some reason, doesn't show remaining health percentage in CrystalDiskInfo.
A CLI tool called smartctl's output is below.
C:\Windows\system32>smartctl -a /dev/sdx
smartctl 7.5 2025-04-30 r5714 [x86_64-w64-mingw32-w10-22H2] (AppVeyor)
Copyright (C) 2002-25, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: Samsung based SSDs
Device Model: SAMSUNG MZ7KM960HAHP-000D6
Serial Number: S2S4NY0H801093
LU WWN Device Id: 5 002538 c4032ec36
Add. Product Id: DELL(tm)
Firmware Version: GB32
User Capacity: 960,197,124,096 bytes [960 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
ATA Version is: ACS-2, ATA8-ACS T13/1699-D revision 4c
SATA Version is: SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Thu Oct 09 11:19:38 2025 EDT
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
=== START OF READ SMART DATA SECTION ===
SMART Status not supported: Incomplete response, ATA output registers missing
SMART overall-health self-assessment test result: PASSED
Warning: This result is based on an Attribute check.
General SMART Values:
Offline data collection status: (0x02) Offline data collection activity
was completed without error.
Auto Offline Data Collection: Disabled.
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: ( 3600) seconds.
Offline data collection
capabilities: (0x5b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
No 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: ( 60) minutes.
SCT capabilities: (0x003d) SCT Status supported.
SCT Error Recovery Control supported.
SCT Feature Control supported.
SCT Data Table supported.
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 0x001a 200 200 000 Old_age Always - 0
5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail Always - 0
9 Power_On_Hours 0x0032 090 090 000 Old_age Always - 48215
12 Power_Cycle_Count 0x0032 099 099 000 Old_age Always - 35
13 Read_Soft_Error_Rate 0x001a 200 200 000 Old_age Always - 0
179 Used_Rsvd_Blk_Cnt_Tot 0x0013 100 100 010 Pre-fail Always - 0
180 Unused_Rsvd_Blk_Cnt_Tot 0x0012 100 100 000 Old_age Always - 7718
181 Program_Fail_Cnt_Total 0x0032 100 100 000 Old_age Always - 0
182 Erase_Fail_Count_Total 0x0032 100 100 000 Old_age Always - 0
194 Temperature_Celsius 0x0022 061 059 000 Old_age Always - 39
195 ECC_Error_Rate 0x001a 100 100 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0030 100 100 000 Old_age Offline - 0
199 CRC_Error_Count 0x003e 100 100 000 Old_age Always - 0
201 Supercap_Status 0x0033 100 100 001 Pre-fail Always - 0
202 Exception_Mode_Status 0x0033 100 100 010 Pre-fail Always - 0
233 Media_Wearout_Indicator 0x0032 099 099 000 Old_age Always - 2232186376977
245 Timed_Workld_Media_Wear 0x003a 085 085 000 Old_age Always - 85
SMART Error Log Version: 1
No Errors Logged
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Short offline Completed without error 00% 2 -
# 2 Extended offline Completed without error 00% 1 -
SMART Selective self-test log data structure revision number 1
SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS
1 0 0 Not_testing
2 0 0 Not_testing
3 0 0 Not_testing
4 0 0 Not_testing
5 0 0 Not_testing
255 0 65535 Read_scanning was completed without error
Selective self-test flags (0x0):
After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.
The above only provides legacy SMART information - try 'smartctl -x' for more
According to my own research, the SMART 233 value "Media Wearout Indicator" is a good reference for remaining life, as it indicates the remaining life of the NAND chip. See reference 1 and 2 (do a Ctrl + F for "233" in order to find the section on the page regarding this particular statistic).
I will be submitting a pull request to add this functionality shortly.
It might be worth researching enterprise Intel, Seagate and Western Digital drives to determine whether they are properly programmed with a remaining percentage (as I have no idea whether other enterprise manufacturers provide a health percent unlike this Samsung drive), but the reference documents show this is a SMART value on those other 3 brands in addition to Samsung.
I don't own any enterprise drives manufactured by Intel, Seagate or Western Digital as I already confirmed the Intel 2.5" SATA SSDs have a remaining health percent indicator and I can't afford Seagate or Western Digital enterprise drives (they're quite expensive).