Wear Leveling Count at 1

[Reubenno]

Hello,
I am worried that my SSD is dying. Sentinel states that:

The status of the solid state disk is PERFECT. Problematic or weak sectors were not found.
The TRIM feature of the SSD is supported and enabled for optimal performance.
The health is determined by SSD specific S.M.A.R.T. attribute(s): #177 Wear Leveling Count
It is recommended to backup immediately to prevent data loss.

I don't know if this is a software bug but I've just had to reinstall Windows due to it refusing to boot. I think this is an issue with the SSD but I don't want to buy a new one if it is just software and I got unlucky with the Windows installation dying.

I've pasted the log below,
Thanks.



-- General Information --

Application Information
-------------------------
Installed Version . . . . . . . . . . . . . . . : Hard Disk Sentinel 5.40 PRO
Registered To . . . . . . . . . . . . . . . . . : Unregistered version, please register.
Current Date And Time . . . . . . . . . . . . . : 25/03/2019 23:28:24
Health Calculation Method . . . . . . . . . . . : Analyse data field (default)

Computer Information
----------------------
Computer Name . . . . . . . . . . . . . . . . . : BOB
User Name . . . . . . . . . . . . . . . . . . . : Reuben
Computer Type . . . . . . . . . . . . . . . . . : Desktop
IP Address . . . . . . . . . . . . . . . . . . . : 192.168.1.82
MAC Address . . . . . . . . . . . . . . . . . . : BC-5F-F4-83-30-26
System Uptime . . . . . . . . . . . . . . . . . : 0 days, 0 hours, 26 minutes, 53 seconds
System Idle Time . . . . . . . . . . . . . . . . : 0 days, 0 hours, 0 minutes, 0 seconds
System Up Since . . . . . . . . . . . . . . . . : 25/03/2019 23:01:31
CPU Usage . . . . . . . . . . . . . . . . . . . : CPU #1: 30 %, CPU #2: 24 %, CPU #3: 24 %, CPU #4: 13 %, CPU #5: 24 %, CPU #6: 11 %, CPU #7: 34 %, CPU #8: 26 %
Virtual Memory . . . . . . . . . . . . . . . . . : 19209 MB, Used: 4956 MB (26 %)

System Information
--------------------
Windows Version . . . . . . . . . . . . . . . . : Windows 8.1 Pro
CPU Type & Speed #1 . . . . . . . . . . . . . . : Intel(R) Core(TM) i7-2600K CPU @ 3.40GHz, 3400 MHz
CPU Type & Speed #2 . . . . . . . . . . . . . . : Intel(R) Core(TM) i7-2600K CPU @ 3.40GHz, 3400 MHz
CPU Type & Speed #3 . . . . . . . . . . . . . . : Intel(R) Core(TM) i7-2600K CPU @ 3.40GHz, 3400 MHz
CPU Type & Speed #4 . . . . . . . . . . . . . . : Intel(R) Core(TM) i7-2600K CPU @ 3.40GHz, 3400 MHz
CPU Type & Speed #5 . . . . . . . . . . . . . . : Intel(R) Core(TM) i7-2600K CPU @ 3.40GHz, 3400 MHz
CPU Type & Speed #6 . . . . . . . . . . . . . . : Intel(R) Core(TM) i7-2600K CPU @ 3.40GHz, 3400 MHz
CPU Type & Speed #7 . . . . . . . . . . . . . . : Intel(R) Core(TM) i7-2600K CPU @ 3.40GHz, 3400 MHz
CPU Type & Speed #8 . . . . . . . . . . . . . . : Intel(R) Core(TM) i7-2600K CPU @ 3.40GHz, 3400 MHz
BIOS Manufacturer . . . . . . . . . . . . . . . : AMI
Physical Memory Size . . . . . . . . . . . . . . : 16265 MB, Used: 5650 MB (35 %)
Display Adapter . . . . . . . . . . . . . . . . : Microsoft Basic Display Adapter
Display Resolution . . . . . . . . . . . . . . . : 2560 x 1080 (32 bit)
Printer #1 . . . . . . . . . . . . . . . . . . . : Fax
Printer #2 . . . . . . . . . . . . . . . . . . . : Microsoft XPS Document Writer
Network Controller . . . . . . . . . . . . . . . : Broadcom NetLink (TM) Gigabit Ethernet
Optical Drive . . . . . . . . . . . . . . . . . : E: ASUS DRW-24B5ST / 1.00 (CD)

PCI Device Information
------------------------
PCI Bus 0; Device 1; Function 0 . . . . . . . . : Xeon E3-1200/2nd Generation Intel(R) Core(TM) Processor Family PCI Express Root Port - 0101
PCI Bus 0; Device 20; Function 0 . . . . . . . . : %1 USB 3.0 eXtensible Host Controller - %2 (Microsoft);(Intel(R),0100)
PCI Bus 0; Device 26; Function 0 . . . . . . . . : Intel(R) 7 Series/C216 Chipset Family USB Enhanced Host Controller - 1E2D
PCI Bus 0; Device 27; Function 0 . . . . . . . . : High Definition Audio Controller
PCI Bus 0; Device 28; Function 0 . . . . . . . . : Intel(R) 7 Series/C216 Chipset Family PCI Express Root Port 1 - 1E10
PCI Bus 0; Device 28; Function 3 . . . . . . . . : Intel(R) 7 Series/C216 Chipset Family PCI Express Root Port 4 - 1E16
PCI Bus 0; Device 28; Function 4 . . . . . . . . : Intel(R) 7 Series/C216 Chipset Family PCI Express Root Port 5 - 1E18
PCI Bus 0; Device 28; Function 7 . . . . . . . . : Intel(R) 7 Series/C216 Chipset Family PCI Express Root Port 8 - 1E1E
PCI Bus 0; Device 29; Function 0 . . . . . . . . : Intel(R) 7 Series/C216 Chipset Family USB Enhanced Host Controller - 1E26
PCI Bus 0; Device 31; Function 2 . . . . . . . . : Standard SATA AHCI Controller
PCI Bus 1; Device 0; Function 0 . . . . . . . . : Microsoft Basic Display Adapter
PCI Bus 1; Device 0; Function 1 . . . . . . . . : High Definition Audio Controller
PCI Bus 3; Device 0; Function 0 . . . . . . . . : Standard SATA AHCI Controller
PCI Bus 4; Device 0; Function 0 . . . . . . . . : Broadcom NetLink (TM) Gigabit Ethernet
PCI Bus 5; Device 0; Function 0 . . . . . . . . : %1 USB 3.0 eXtensible Host Controller - %2 (Microsoft);(ASMedia,0096)



-- Physical Disk Information - Disk: #0: Samsung SSD 840 EVO 250GB --

Hard Disk Summary
-------------------
Hard Disk Number . . . . . . . . . . . . . . . . : 0
Interface . . . . . . . . . . . . . . . . . . . : S-ATA Gen3, 6 Gbps
Disk Controller . . . . . . . . . . . . . . . . : Standard SATA AHCI Controller (AHCI) [VEN: 1B21, DEV: 0612] Version: 6.3.9600.16384, 6-21-2006
Disk Location . . . . . . . . . . . . . . . . . : Bus Number 1, Target Id 0, LUN 0
Hard Disk Model ID . . . . . . . . . . . . . . . : Samsung SSD 840 EVO 250GB
Firmware Revision . . . . . . . . . . . . . . . : EXT0DB6Q
Hard Disk Serial Number . . . . . . . . . . . . : S1DDNEAF800838T
SSD Controller . . . . . . . . . . . . . . . . . : Samsung MEX S4LN045X01
Total Size . . . . . . . . . . . . . . . . . . . : 238472 MB
Power State . . . . . . . . . . . . . . . . . . : Active
Logical Drive(s) . . . . . . . . . . . . . . . . : C: []
Current Temperature . . . . . . . . . . . . . . : 35 °C
Power On Time . . . . . . . . . . . . . . . . . : 637 days, 4 hours
Estimated Remaining Lifetime . . . . . . . . . . : 1 days
Lifetime Writes . . . . . . . . . . . . . . . . : 60.23 TB
Health . . . . . . . . . . . . . . . . . . . . . : -------------------- 1 % (Critical)
Performance . . . . . . . . . . . . . . . . . . : #################### 100 % (Excellent)

The status of the solid state disk is PERFECT. Problematic or weak sectors were not found.
The TRIM feature of the SSD is supported and enabled for optimal performance.
The health is determined by SSD specific S.M.A.R.T. attribute(s): #177 Wear Leveling Count
It is recommended to backup immediately to prevent data loss.

ATA Information
-----------------
Hard Disk Cylinders . . . . . . . . . . . . . . : 484521
Hard Disk Heads . . . . . . . . . . . . . . . . : 16
Hard Disk Sectors . . . . . . . . . . . . . . . : 63
ATA Revision . . . . . . . . . . . . . . . . . . : ACS-2, ATA8-ACS version 4c
Transport Version . . . . . . . . . . . . . . . : SATA Rev 3.1
Total Sectors . . . . . . . . . . . . . . . . . : 488397168
Bytes Per Sector . . . . . . . . . . . . . . . . : 512
Multiple Sectors . . . . . . . . . . . . . . . . : 1
Error Correction Bytes . . . . . . . . . . . . . : 0
Unformatted Capacity . . . . . . . . . . . . . . : 238475 MB
Maximum PIO Mode . . . . . . . . . . . . . . . . : 4
Maximum Multiword DMA Mode . . . . . . . . . . . : 2
Highest Possible Transfer Rate . . . . . . . . . : S-ATA Gen3 Signaling Speed (6 Gps)
Negotiated Transfer Rate . . . . . . . . . . . . : S-ATA Gen3 Signaling Speed (6 Gps)
Minimum Multiword DMA Transfer Time . . . . . . : 120 ns
Recommended Multiword DMA Transfer Time . . . . : 120 ns
Minimum PIO Transfer Time Without IORDY . . . . : 120 ns
Minimum PIO Transfer Time With IORDY . . . . . . : 120 ns
ATA Control Byte . . . . . . . . . . . . . . . . : Valid
ATA Checksum Value . . . . . . . . . . . . . . . : Valid

Acoustic Management Configuration
-----------------------------------
Acoustic Management . . . . . . . . . . . . . . : Not supported
Acoustic Management . . . . . . . . . . . . . . : Disabled
Current Acoustic Level . . . . . . . . . . . . . : Default (00h)
Recommended Acoustic Level . . . . . . . . . . . : Default (00h)

ATA Features
--------------
Read Ahead Buffer . . . . . . . . . . . . . . . : Supported, Enabled
DMA . . . . . . . . . . . . . . . . . . . . . . : Supported
Ultra DMA . . . . . . . . . . . . . . . . . . . : Supported
S.M.A.R.T. . . . . . . . . . . . . . . . . . . . : Supported
Power Management . . . . . . . . . . . . . . . . : Supported
Write Cache . . . . . . . . . . . . . . . . . . : Supported
Host Protected Area . . . . . . . . . . . . . . : Supported
HPA Security Extensions . . . . . . . . . . . . : Supported
Advanced Power Management . . . . . . . . . . . : Not supported
Extended Power Management . . . . . . . . . . . : Not supported
Power Up In Standby . . . . . . . . . . . . . . : Not supported
48-Bit LBA Addressing . . . . . . . . . . . . . : Supported
Device Configuration Overlay . . . . . . . . . . : Supported
IORDY Support . . . . . . . . . . . . . . . . . : Supported
Read/Write DMA Queue . . . . . . . . . . . . . . : Not supported
NOP Command . . . . . . . . . . . . . . . . . . : Supported
Trusted Computing . . . . . . . . . . . . . . . : Supported
64-Bit World Wide ID . . . . . . . . . . . . . . : 500253885011BEEA
Streaming . . . . . . . . . . . . . . . . . . . : Not supported
Media Card Pass Through . . . . . . . . . . . . : Not supported
General Purpose Logging . . . . . . . . . . . . : Supported
Error Logging . . . . . . . . . . . . . . . . . : Supported
CFA Feature Set . . . . . . . . . . . . . . . . : Not supported
CFast Device . . . . . . . . . . . . . . . . . . : Not supported
Long Physical Sectors (1) . . . . . . . . . . . : Not supported
Long Logical Sectors . . . . . . . . . . . . . . : Not supported
Write-Read-Verify . . . . . . . . . . . . . . . : Supported, Disabled
NV Cache Feature . . . . . . . . . . . . . . . . : Not supported
NV Cache Power Mode . . . . . . . . . . . . . . : Not supported
NV Cache Size . . . . . . . . . . . . . . . . . : Not supported
Free-fall Control . . . . . . . . . . . . . . . : Not supported
Free-fall Control Sensitivity . . . . . . . . . : Not supported
Service Interrupt . . . . . . . . . . . . . . . : Not supported
IDLE IMMEDIATE Command With UNLOAD Feature . . . : Not supported
Nominal Media Rotation Rate . . . . . . . . . . : Non-rotating Media (SSD)

SSD Features
--------------
Data Set Management . . . . . . . . . . . . . . : Supported
TRIM Command . . . . . . . . . . . . . . . . . . : Supported
Deterministic Read After TRIM . . . . . . . . . : Not supported
Read Zeroes After TRIM . . . . . . . . . . . . . : Not supported
Operating System TRIM Function . . . . . . . . . : Supported, Enabled

S.M.A.R.T. Details
--------------------
Off-line Data Collection Status . . . . . . . . : Never Started
Self Test Execution Status . . . . . . . . . . . : Successfully Completed
Total Time To Complete Off-line Data Collection : 4800 seconds
Execute Off-line Immediate . . . . . . . . . . . : Supported
Abort/restart Off-line By Host . . . . . . . . . : Not supported
Off-line Read Scanning . . . . . . . . . . . . . : Not supported
Short Self-test . . . . . . . . . . . . . . . . : Supported
Extended Self-test . . . . . . . . . . . . . . . : Supported
Conveyance Self-test . . . . . . . . . . . . . . : Not supported
Selective Self-Test . . . . . . . . . . . . . . : Supported
Save Data Before/After Power Saving Mode . . . . : Supported
Enable/Disable Attribute Autosave . . . . . . . : Supported
Error Logging Capability . . . . . . . . . . . . : Supported
Short Self-test Estimated Time . . . . . . . . . : 2 minutes
Extended Self-test Estimated Time . . . . . . . : 80 minutes
Last Short Self-test Result . . . . . . . . . . : Never Started
Last Short Self-test Date . . . . . . . . . . . : Never Started
Last Extended Self-test Result . . . . . . . . . : Never Started
Last Extended Self-test Date . . . . . . . . . . : Never Started

Security Mode
---------------
Security Mode . . . . . . . . . . . . . . . . . : Supported
Security Erase . . . . . . . . . . . . . . . . . : Supported
Security Erase Time . . . . . . . . . . . . . . : 2 minutes
Security Enhanced Erase Feature . . . . . . . . : Supported
Security Enhanced Erase Time . . . . . . . . . . : 8 minutes
Security Enabled . . . . . . . . . . . . . . . . : No
Security Locked . . . . . . . . . . . . . . . . : No
Security Frozen . . . . . . . . . . . . . . . . : Yes
Security Counter Expired . . . . . . . . . . . . : No
Security Level . . . . . . . . . . . . . . . . . : High
Device Encrypts All User Data . . . . . . . . . : Yes
Sanitize . . . . . . . . . . . . . . . . . . . . : Not supported
Overwrite . . . . . . . . . . . . . . . . . . . : Not supported
Crypto Scramble . . . . . . . . . . . . . . . . : Not supported
Block Erase . . . . . . . . . . . . . . . . . . : Not supported
Sanitize Antifreeze Lock . . . . . . . . . . . . : Not supported
ACS-3 Commands Allowed By Sanitize . . . . . . . : No

Serial ATA Features
---------------------
S-ATA Compliance . . . . . . . . . . . . . . . . : Yes
S-ATA I Signaling Speed (1.5 Gps) . . . . . . . : Supported
S-ATA II Signaling Speed (3 Gps) . . . . . . . . : Supported
S-ATA Gen3 Signaling Speed (6 Gps) . . . . . . . : Supported
Receipt Of Power Management Requests From Host . : Not supported
PHY Event Counters . . . . . . . . . . . . . . . : Supported
Non-Zero Buffer Offsets In DMA Setup FIS . . . . : Not supported
DMA Setup Auto-Activate Optimization . . . . . . : Supported, Disabled
Device Initiating Interface Power Management . . : Supported, Disabled
In-Order Data Delivery . . . . . . . . . . . . . : Not supported
Asynchronous Notification . . . . . . . . . . . : Supported, Enabled
Software Settings Preservation . . . . . . . . . : Supported, Enabled
Native Command Queuing (NCQ) . . . . . . . . . . : Supported
Queue Length . . . . . . . . . . . . . . . . . . : 32
NCQ Streaming . . . . . . . . . . . . . . . . . : Not supported
NCQ Autosense . . . . . . . . . . . . . . . . . : Not supported
Automatic Partial To Slumber Translations . . . : Not supported
Rebuild Assist . . . . . . . . . . . . . . . . . : Not supported
Hybrid Information . . . . . . . . . . . . . . . : Not supported
Device Sleep (DevSleep) . . . . . . . . . . . . : Not supported
DevSleep To ReducedPwrState . . . . . . . . . . : Not supported

Disk Information
------------------
Disk Information
Form Factor . . . . . . . . . . . . . . . . . . : 2.5"
Capacity . . . . . . . . . . . . . . . . . . . . : 250 GB (250 x 1,000,000,000 bytes)
Disk Interface . . . . . . . . . . . . . . . . . : Serial-ATA/600
Device Type . . . . . . . . . . . . . . . . . . : Samsung 19nm TLC NAND
Width . . . . . . . . . . . . . . . . . . . . . : 69.8 mm (2.7 inch)
Depth . . . . . . . . . . . . . . . . . . . . . : 100.0 mm (3.9 inch)
Height . . . . . . . . . . . . . . . . . . . . . : 9.5 mm (0.4 inch)

S.M.A.R.T.
------------
No. Attribute Thre.. Value Worst Data Status Flags
5 Reallocated Sectors Co.. 0 100 100 000000000000 Ok (10) Self Preserving, Event Count, Statistical, Critical
9 Power On Time Count 0 96 96 000000003BBC OK (Always passing) Self Preserving, Event Count, Statistical
12 Drive Power Cycle Count 0 97 97 000000000950 OK (Always passing) Self Preserving, Event Count, Statistical
177 Wear Leveling Count 0 1 1 0000000004C1 OK (Always passing) Event Count, Statistical, Critical
179 Used Reserved Block Co.. 0 100 1 000000000000 Ok (10) Event Count, Statistical, Critical
181 Program Fail Count (To.. 0 100 100 000000000000 Ok (10) Self Preserving, Event Count, Statistical
182 Erase Fail Count (Total) 0 100 100 000000000000 Ok (10) Self Preserving, Event Count, Statistical
183 Runtime Bad Block (Tot.. 0 100 100 000000000000 Ok (10) Event Count, Statistical, Critical
187 Uncorrectable Error Co.. 0 100 100 000000000000 OK (Always passing) Self Preserving, Event Count, Statistical
190 Temperature 0 65 52 000000000023 OK (Always passing) Self Preserving, Event Count, Statistical
195 ECC Rate 0 200 200 000000000000 OK (Always passing) Event Count, Error-Rate, Statistical
199 Ultra ATA CRC Error Co.. 0 99 99 00000000001B OK (Always passing) Self Preserving, Event Count, Error-Rate, Performanc..
235 POR Recovery Count 0 99 99 000000000492 OK (Always passing) Event Count, Statistical
241 Total LBA Written 0 99 99 001E1D80BC6A OK (Always passing) Self Preserving, Event Count, Statistical

Transfer Rate Information
---------------------------
Total Data Read . . . . . . . . . . . . . . . . : 30,048 MB, 59,538 MB since installation (25/03/2019)
Total Data Write . . . . . . . . . . . . . . . . : 92,262 MB, 112,041 MB since installation
Average Reads Per Day . . . . . . . . . . . . . : 59,538.00 MB
Average Writes Per Day . . . . . . . . . . . . . : 112,041.00 MB
Current Transfer Rate . . . . . . . . . . . . . : 144030 KB/s
Maximum Transfer Rate . . . . . . . . . . . . . : 395715 KB/s
Current Read Rate . . . . . . . . . . . . . . . : 809 KB/s
Current Write Rate . . . . . . . . . . . . . . . : 143221 KB/s
Current Disk Activity . . . . . . . . . . . . . : 59 %



-- Physical Disk Information - Disk: #1: ST1000LM035-1RK172 --

Hard Disk Summary
-------------------
Hard Disk Number . . . . . . . . . . . . . . . . : 1
Interface . . . . . . . . . . . . . . . . . . . : SAT Standard USB/ATA
Vendor Information . . . . . . . . . . . . . . . : VID: 0BC2, PID: 61B6
Disk Controller . . . . . . . . . . . . . . . . : ASMedia USB 3.0 eXtensible Host Controller - 0096 (Microsoft) (USB 3.0) [VEN: 1B21, DEV: 1042] Version: 6.3.9600.17393, 10-6-2014
Hard Disk Model ID . . . . . . . . . . . . . . . : ST1000LM035-1RK172
Firmware Revision . . . . . . . . . . . . . . . : SBM3
Hard Disk Serial Number . . . . . . . . . . . . : WES37JT2
Total Size . . . . . . . . . . . . . . . . . . . : 953867 MB
Power State . . . . . . . . . . . . . . . . . . : Active
Logical Drive(s) . . . . . . . . . . . . . . . . : D: [Maxtor (External Drive)]
Current Temperature . . . . . . . . . . . . . . : 36 °C
Power On Time . . . . . . . . . . . . . . . . . : 134 days, 13 hours
Estimated Remaining Lifetime . . . . . . . . . . : more than 1000 days
Health . . . . . . . . . . . . . . . . . . . . . : #################### 100 % (Excellent)
Performance . . . . . . . . . . . . . . . . . . : #################### 100 % (Excellent)

The hard disk status is PERFECT. Problematic or weak sectors were not found and there are no spin up or data transfer errors.
No actions needed.

ATA Information
-----------------
Hard Disk Cylinders . . . . . . . . . . . . . . : 1938021
Hard Disk Heads . . . . . . . . . . . . . . . . : 16
Hard Disk Sectors . . . . . . . . . . . . . . . : 63
ATA Revision . . . . . . . . . . . . . . . . . . : ACS-3 Revision 3b
Transport Version . . . . . . . . . . . . . . . : SATA Rev 3.1
Total Sectors . . . . . . . . . . . . . . . . . : 244190646
Bytes Per Sector . . . . . . . . . . . . . . . . : 4096 [Advanced Format]
Multiple Sectors . . . . . . . . . . . . . . . . : 16
Error Correction Bytes . . . . . . . . . . . . . : 0
Unformatted Capacity . . . . . . . . . . . . . . : 953870 MB
Maximum PIO Mode . . . . . . . . . . . . . . . . : 4
Maximum Multiword DMA Mode . . . . . . . . . . . : 2
Active Multiword DMA Mode . . . . . . . . . . . : 2
Highest Possible Transfer Rate . . . . . . . . . : S-ATA Gen3 Signaling Speed (6 Gps)
Negotiated Transfer Rate . . . . . . . . . . . . : S-ATA Gen3 Signaling Speed (6 Gps)
Minimum Multiword DMA Transfer Time . . . . . . : 120 ns
Recommended Multiword DMA Transfer Time . . . . : 120 ns
Minimum PIO Transfer Time Without IORDY . . . . : 120 ns
Minimum PIO Transfer Time With IORDY . . . . . . : 120 ns
ATA Control Byte . . . . . . . . . . . . . . . . : Valid
ATA Checksum Value . . . . . . . . . . . . . . . : Valid

Acoustic Management Configuration
-----------------------------------
Acoustic Management . . . . . . . . . . . . . . : Not supported
Acoustic Management . . . . . . . . . . . . . . : Disabled
Current Acoustic Level . . . . . . . . . . . . . : Balanced performance and volume (D0h)
Recommended Acoustic Level . . . . . . . . . . . : Balanced performance and volume (D0h)

ATA Features
--------------
Read Ahead Buffer . . . . . . . . . . . . . . . : Supported, Enabled
DMA . . . . . . . . . . . . . . . . . . . . . . : Supported
Ultra DMA . . . . . . . . . . . . . . . . . . . : Supported
S.M.A.R.T. . . . . . . . . . . . . . . . . . . . : Supported
Power Management . . . . . . . . . . . . . . . . : Supported
Write Cache . . . . . . . . . . . . . . . . . . : Supported
Host Protected Area . . . . . . . . . . . . . . : Supported
HPA Security Extensions . . . . . . . . . . . . : Supported
Advanced Power Management . . . . . . . . . . . : Supported, Enabled
Advanced Power Management Level . . . . . . . . : Minimum power consumption without standby (128)
Extended Power Management . . . . . . . . . . . : Not supported
Power Up In Standby . . . . . . . . . . . . . . : Supported
48-Bit LBA Addressing . . . . . . . . . . . . . : Supported
Device Configuration Overlay . . . . . . . . . . : Supported
IORDY Support . . . . . . . . . . . . . . . . . : Supported
Read/Write DMA Queue . . . . . . . . . . . . . . : Not supported
NOP Command . . . . . . . . . . . . . . . . . . : Supported
Trusted Computing . . . . . . . . . . . . . . . : Not supported
64-Bit World Wide ID . . . . . . . . . . . . . . : 5000C5009DC99CC4
Streaming . . . . . . . . . . . . . . . . . . . : Not supported
Media Card Pass Through . . . . . . . . . . . . : Not supported
General Purpose Logging . . . . . . . . . . . . : Supported
Error Logging . . . . . . . . . . . . . . . . . : Supported
CFA Feature Set . . . . . . . . . . . . . . . . : Not supported
CFast Device . . . . . . . . . . . . . . . . . . : Not supported
Long Physical Sectors (8) . . . . . . . . . . . : Supported
Long Logical Sectors . . . . . . . . . . . . . . : Not supported
Write-Read-Verify . . . . . . . . . . . . . . . : Supported, Disabled
NV Cache Feature . . . . . . . . . . . . . . . . : Not supported
NV Cache Power Mode . . . . . . . . . . . . . . : Not supported
NV Cache Size . . . . . . . . . . . . . . . . . : Not supported
Free-fall Control . . . . . . . . . . . . . . . : Not supported
Free-fall Control Sensitivity . . . . . . . . . : Not supported
Service Interrupt . . . . . . . . . . . . . . . : Not supported
IDLE IMMEDIATE Command With UNLOAD Feature . . . : Supported
Nominal Media Rotation Rate . . . . . . . . . . : 5400 RPM
Nominal Form Factor . . . . . . . . . . . . . . : 2.5 inch

SSD Features
--------------
Data Set Management . . . . . . . . . . . . . . : Not supported
TRIM Command . . . . . . . . . . . . . . . . . . : Not supported
Deterministic Read After TRIM . . . . . . . . . : Not supported
Read Zeroes After TRIM . . . . . . . . . . . . . : Not supported

S.M.A.R.T. Details
--------------------
Off-line Data Collection Status . . . . . . . . : Never Started
Self Test Execution Status . . . . . . . . . . . : Successfully Completed
Total Time To Complete Off-line Data Collection : 0 seconds
Execute Off-line Immediate . . . . . . . . . . . : Supported
Abort/restart Off-line By Host . . . . . . . . . : Not supported
Off-line Read Scanning . . . . . . . . . . . . . : Not supported
Short Self-test . . . . . . . . . . . . . . . . : Supported
Extended Self-test . . . . . . . . . . . . . . . : Supported
Conveyance Self-test . . . . . . . . . . . . . . : Supported
Selective Self-Test . . . . . . . . . . . . . . : Supported
Save Data Before/After Power Saving Mode . . . . : Supported
Enable/Disable Attribute Autosave . . . . . . . : Supported
Error Logging Capability . . . . . . . . . . . . : Supported
Short Self-test Estimated Time . . . . . . . . . : 1 minutes
Extended Self-test Estimated Time . . . . . . . : 170 minutes
Conveyance Self-test Estimated Time . . . . . . : 2 minutes
Last Short Self-test Result . . . . . . . . . . : Never Started
Last Short Self-test Date . . . . . . . . . . . : Never Started
Last Extended Self-test Result . . . . . . . . . : Never Started
Last Extended Self-test Date . . . . . . . . . . : Never Started
Last Conveyance Self-test Result . . . . . . . . : Never Started
Last Conveyance Self-test Date . . . . . . . . . : Never Started

Security Mode
---------------
Security Mode . . . . . . . . . . . . . . . . . : Supported
Security Erase . . . . . . . . . . . . . . . . . : Supported
Security Erase Time . . . . . . . . . . . . . . : 172 minutes
Security Enhanced Erase Feature . . . . . . . . : Supported
Security Enhanced Erase Time . . . . . . . . . . : 172 minutes
Security Enabled . . . . . . . . . . . . . . . . : No
Security Locked . . . . . . . . . . . . . . . . : No
Security Frozen . . . . . . . . . . . . . . . . : No
Security Counter Expired . . . . . . . . . . . . : No
Security Level . . . . . . . . . . . . . . . . . : High
Device Encrypts All User Data . . . . . . . . . : No
Sanitize . . . . . . . . . . . . . . . . . . . . : Not supported
Overwrite . . . . . . . . . . . . . . . . . . . : Not supported
Crypto Scramble . . . . . . . . . . . . . . . . : Not supported
Block Erase . . . . . . . . . . . . . . . . . . : Not supported
Sanitize Antifreeze Lock . . . . . . . . . . . . : Not supported
ACS-3 Commands Allowed By Sanitize . . . . . . . : No

Serial ATA Features
---------------------
S-ATA Compliance . . . . . . . . . . . . . . . . : Yes
S-ATA I Signaling Speed (1.5 Gps) . . . . . . . : Supported
S-ATA II Signaling Speed (3 Gps) . . . . . . . . : Supported
S-ATA Gen3 Signaling Speed (6 Gps) . . . . . . . : Supported
Receipt Of Power Management Requests From Host . : Supported
PHY Event Counters . . . . . . . . . . . . . . . : Supported
Non-Zero Buffer Offsets In DMA Setup FIS . . . . : Not supported
DMA Setup Auto-Activate Optimization . . . . . . : Supported, Disabled
Device Initiating Interface Power Management . . : Supported, Disabled
In-Order Data Delivery . . . . . . . . . . . . . : Not supported
Asynchronous Notification . . . . . . . . . . . : Supported, Disabled
Software Settings Preservation . . . . . . . . . : Supported, Disabled
Native Command Queuing (NCQ) . . . . . . . . . . : Supported
Queue Length . . . . . . . . . . . . . . . . . . : 32
NCQ Streaming . . . . . . . . . . . . . . . . . : Not supported
NCQ Autosense . . . . . . . . . . . . . . . . . : Not supported
Automatic Partial To Slumber Translations . . . : Not supported
Rebuild Assist . . . . . . . . . . . . . . . . . : Not supported
Hybrid Information . . . . . . . . . . . . . . . : Not supported
Device Sleep (DevSleep) . . . . . . . . . . . . : Not supported
DevSleep To ReducedPwrState . . . . . . . . . . : Not supported

Disk Information
------------------
Disk Family . . . . . . . . . . . . . . . . . . : Mobile HDD 1000LM035
Form Factor . . . . . . . . . . . . . . . . . . : 2.5"
Capacity . . . . . . . . . . . . . . . . . . . . : 1 TB (1 x 1,000,000,000,000 bytes)
Number Of Disks . . . . . . . . . . . . . . . . : 1
Number Of Heads . . . . . . . . . . . . . . . . : 2
Rotational Speed . . . . . . . . . . . . . . . . : 5400 RPM
Rotation Time . . . . . . . . . . . . . . . . . : 11.11 ms
Average Rotational Latency . . . . . . . . . . . : 5.56 ms
Disk Interface . . . . . . . . . . . . . . . . . : Serial-ATA/600
Buffer-Host Max. Rate . . . . . . . . . . . . . : 600 MB/seconds
Buffer Size . . . . . . . . . . . . . . . . . . : 131072 KB
Drive Ready Time (Typical) . . . . . . . . . . . : ? seconds
Average Seek Time . . . . . . . . . . . . . . . : 13.0 ms
Track To Track Seek Time . . . . . . . . . . . . : ? ms
Full Stroke Seek Time . . . . . . . . . . . . . : ? ms
Width . . . . . . . . . . . . . . . . . . . . . : 69.9 mm (2.8 inch)
Depth . . . . . . . . . . . . . . . . . . . . . : 100.4 mm (4.0 inch)
Height . . . . . . . . . . . . . . . . . . . . . : 7.0 mm (0.3 inch)
Weight . . . . . . . . . . . . . . . . . . . . . : 90 grams (0.2 pounds)
Acoustic (Idle) . . . . . . . . . . . . . . . . : 2.3 Bel
Acoustic (Min Performance And Volume) . . . . . : 2.5 Bel
Acoustic (Max Performance And Volume) . . . . . : 3.0 Bel
Required Power For Spinup . . . . . . . . . . . : 1,200 mA
Power Required (Seek) . . . . . . . . . . . . . : 2.4 W
Power Required (Idle) . . . . . . . . . . . . . : 1.2 W
Power Required (Standby) . . . . . . . . . . . . : 0.4 W
Manufacturer . . . . . . . . . . . . . . . . . . : Seagate Technology
Manufacturer Website . . . . . . . . . . . . . . : http://www.seagate.com/www/en-us/products

S.M.A.R.T.
------------
No. Attribute Thre.. Value Worst Data Status Flags
1 Raw Read Error Rate 6 77 64 000002EA448B OK Error-Rate, Performance, Statistical, Critical
3 Spin Up Time 0 99 99 000000000000 OK (Always passing) Statistical, Critical
4 Start/Stop Count 20 100 100 00000000036B OK Self Preserving, Event Count, Statistical
5 Reallocated Sectors Co.. 36 100 100 000000000000 OK Self Preserving, Event Count, Statistical, Critical
7 Seek Error Rate 45 74 61 000001A2202B OK Error-Rate, Performance, Statistical, Critical
9 Power On Time Count 0 97 97 812A00000C9D OK (Always passing) Self Preserving, Event Count, Statistical
10 Spin Retry Count 97 100 100 000000000000 OK Event Count, Statistical, Critical
12 Drive Power Cycle Count 20 100 100 0000000001EB OK Self Preserving, Event Count, Statistical
184 End-to-End Error Count 99 100 100 000000000000 OK Self Preserving, Event Count, Statistical
187 Reported Uncorrectable.. 0 100 100 000000000000 OK (Always passing) Self Preserving, Event Count, Statistical
188 Command Timeout 0 100 99 000000000005 OK (Always passing) Self Preserving, Event Count, Statistical
189 High Fly Writes 0 100 100 000000000000 OK (Always passing) Self Preserving, Event Count, Error-Rate, Statistical
190 Airflow Temperature 40 64 49 000024170024 OK Self Preserving, Statistical
191 G-Sense Error Rate 0 100 100 000000000004 OK (Always passing) Self Preserving, Event Count, Statistical
192 Power off Retract Cycl.. 0 100 100 00000000004E OK (Always passing) Self Preserving, Event Count, Statistical
193 Load/Unload Cycle Count 0 95 95 000000002B5F OK (Always passing) Self Preserving, Event Count, Statistical
194 Disk Temperature 0 36 51 000B00000024 OK (Always passing) Self Preserving, Statistical
197 Current Pending Sector.. 0 100 100 000000000000 OK (Always passing) Event Count, Statistical
198 Off-Line Uncorrectable.. 0 100 100 000000000000 OK (Always passing) Event Count
199 Ultra ATA CRC Error Co.. 0 200 200 000000000000 OK (Always passing) Self Preserving, Event Count, Error-Rate, Performanc..
240 Head Flying Hours 0 100 253 397C000005F7 OK (Always passing)
241 Total LBA Written 0 100 253 0003A7BB2A72 OK (Always passing)
242 Total LBA Read 0 100 253 0001C25827B0 OK (Always passing)
254 Free Fall Event Count 0 100 100 000000000000 OK (Always passing) Self Preserving, Event Count, Statistical

Transfer Rate Information
---------------------------
Real time performance monitoring is not supported on this disk.



-- Partition Information --

Logical Drive Total Space Free Space Free Space Used Space
C: (Disk: #0) 232.4 GB 123.8 GB 53 % #########-----------
D: Maxtor (External Drive) (Disk: #1) 931.5 GB 4.9 GB 1 % (Low) ###################-

[hdsentinel]

Thanks for your message and the details.

No, it is not a software bug. I wonder why do you think that?

In the text description,Hard Disk Sentinel shows the reason of the low health:

"The health is determined by SSD specific S.M.A.R.T. attribute(s): #177 Wear Leveling Count"

Even if the SSD is perfect otherwise, the wearout (caused by writes) slowly but surely degrades the health of the device (see Help for details: see bottom of https://www.hdsentinel.com/help/en/52_cond.html ).

If you check the S.M.A.R.T. page, you can verify: the Value is 1, which is the source of the 1% health.
This number decreases slowly from 100 with time (with writes).

As you see, Hard Disk Sentinel reports that

Lifetime Writes . . . . . . . . . . . . . . . . : 60.23 TB

which is really high. Tried to find the official limit for this model, but I see no such value in the specifications. However, according Samsung:

https://www.samsung.com/semiconductor/m ... /warranty/

the 840 Pro (Enterprise series) would tolerate 73 TB data. The EVO series can't reach this number, so it confirms why the health is 1% only when over 60 TB written already.

It is not surprising that you experience troubles with the SSD in general if it has so low health....

[Reubenno]

Thanks for your reply.
My apologies if I offended you, I was thinking it was a bug because other software such as Samsung Magician and CrystalDiskInfo is saying that the SSD is in good condition.

I've ordered a Crucial MX500 to replace the failing drive. However the strange thing is that I've managed to reinstall Windows on the 840 without issues and am currently using it. I presume the drive is close to dying and I'm using it on it's last legs.

Thanks again for your help.

[hdsentinel]

No problems of course, just was not sure, this is why I asked

Generally other tools may check/report only if the error-level threshold reached - otherwise they may show perfect status.
(see https://www.hdsentinel.com/faq.php#difference for more information).

This is why it is important to examine/monitor status and reveal possible degradations with time too.

The SSD may still work, even for longer time. There are reports/reviews when users attempted to write even more on different SSD models. It's possible, without problems.

But when the wearout is high, the memory cells may not able to hold the stored information for long time, especially if the device is powered OFF (when the SSD has no opportunity to periodically refresh/update the information).
So it may still work, but if you power off for longer time, then it is possible that data can't be read back (or will be damaged/corrupted).

[Bzzz]

I have to say this looks quite odd...

vertex.png (76.97 KiB) Viewed 19128 times

vertex2.png (109.32 KiB) Viewed 19128 times

SSD still accepts chunks of data at a few MB/s avg until it completely disappears from the system; SMART error log is corrupted, self test gets stuck at 10%. Basically dead.

Note that the SMART numbers also do not add up - even just 3889 (min) erase cycles of 60GB (64GiB installed) add up to 233ish TB, far far away from a reported 867GB lifetime writes, which calculate from 1818M written sectors at 512 Bytes (867GiB or 931GB!). Could be extreme write amplification, but these old bastards also compress data to reduce writes. Anyway, the only thing that this drive is still perfect at is being suitable for the electronics recycle bin.