My laptop with Windows 10 fall creators update (installed one week ago) is running on a laptop with the main disk SSD OCZ Vertex 128GB + a secondary internal disk Samsung SSD 512GB, the latter as a replacement for the DVD drive ,using a suitable caddy (DELL Latitude E6520).
Today, all of a sudden after a reboot, the secondary disk wasn't accessible, while the unit was visible in Windows Explorer showing the correct amount of used data and free space, however attempting to accessing the unit would throw an error "The request could not be performed because of an I/O device error"; attempting to CHKDSK would state that the filesystem is RAW.
I have run SMART test getting the following attached results. Then I have run Easus recovery tools, that found a lot of files but not all. Quite worried I have accessed the disk that in the meanwhile recovered. Back to NTFS, fully accessible no errors given by CHKDSK.
I wonder why all this happened, and if the unit is reliable or not.
Your thoughts?
EDIT:
Found many articles such as this one stating that this sudden change may occur for bad connections or power outage. I wonder if I can rely on this disk and the computer itself
EDIT 2:
The problem occurred again. Downloaded Samsung Magician, no errors detected on the unit, I suspect the problem lies in the controller or the operating system. I have unplugged the caddy & removed the hard disk, connecting it to an external USB cable. Currently testing. I wonder if it may happen that the internal controller gets defective?
EDIT 3:
Now on day 2 with the disk connected externally through USB cable. No glitches and one other important aspect: the laptop keyboard was stopping working in the last months and had to power off and on the computer to set it back to work. Since I have removed the disk from the caddy, this is not happening anymore. Could the caddy be defective? Or the controller? Or maybe the internal disk was draining too much energy from the controller?
*** DiskCheckup V3.4 Build: 1003 Report ***
SysInfo DLL Version: SysInfo v1.0 Build: 1122
Time of export: 17:38:13 02-mar-2018
Device information:
Device ID: 1
Interface: SATA
Device Capacity: 476937 MB
Serial Number: S2RBNCAJ186494B
Model Number: Samsung SSD 850 EVO 500GB
Firmware Revision: EMT02B6Q
Partitions:
E: 476837 MB
ATA information:
Disk geometry:
Cylinders: 60801
Tracks/Cylinder: 255
Sectors/Track: 63
Bytes/Sector: 512
Total disk sectors: 976773168
Logical sector size: 512
Physical sector size: 512
Media rotation rate: SSD
Buffer size: N/A
ECC size: N/A
Standards compliance:
ATA8-ACS Supported: Yes
ATA/ATAPI-7 Supported: Yes
ATA/ATAPI-6 Supported: Yes
ATA/ATAPI-5 Supported: Yes
ATA/ATAPI-4 Supported: Yes
SATA Compliance: Yes
SATA Gen3 Signaling Speed (6.0Gb/s) Supported: Yes
SATA Gen2 Signaling Speed (3.0Gb/s) supported: Yes
SATA Gen1 Signaling Speed (1.5Gb/s) supported: Yes
Transport Type: Serial
SATA 3.0 Transport Compilance: Yes
SATA 2.6 Transport Compilance: Yes
SATA 2.5 Transport Compilance: Yes
SATA II: Ext Transport Compilance: Yes
SATA 1.0a Transport Compilance: Yes
ATA8-AST Transport Compilance: Yes
World Wide ID: 5002538D704CB9DD
Feature support:
SMART supported: Yes
SMART enabled: Yes
SMART self-test supported: Yes
SMART error log supported: Yes
LBA supported: Yes
IORDY supported: Yes
CFast supported: No
DMA supported: Yes
Maximum Multiword DMA mode supported: 2
Multiword DMA selected: None
Maximum UltraDMA mode supported: 6
UltraDMA selected: 5
Maximum PIO mode supported: 4
SATA Compliance: Yes
NCQ priority information supported: No
Unload while NCQ commands are outstanding supported: No
Phy Event Counters supported: Yes
Receipt of power management requests supported: No
NCQ feature set supported: Yes
Software Settings Preservation: Supported, Enabled
In-order data delivery: Not supported
Initiating power management: Supported, Disabled
DMA Setup auto-activation: Supported, Disabled
Non-zero buffer offsets: Not supported
Trusted Computing supported: Yes
Host Protected Area (HPA) supported: Yes
Read look-ahead supported: Yes
Read look-ahead enabled: Yes
Write cache supported: Yes
Write cache enabled: Yes
Power management supported: Yes
Security mode supported: Yes
Security mode enabled: No
Device Configuration Overlay (DCO) supported: Yes
48bit Addressing supported: Yes
Auto Acoustic Managment (AAM) supported: No
Power-up in Standby (PUIS) supported: No
Advanced Power Management (APM) supported: No
CompactFlash Association (CFA) supported: No
General Purpose Logging (GPL) supported: Yes
Streaming supported: No
Media card pass through supported: No
Extended power conditions supported: No
Extended status reporting supported: No
Write-read-verify supported: Yes
Write-read-verify enabled: No
Free-fall control supported: No
TRIM command supported: Yes
SCT command transport supported: Yes
NV Cache enabled: No
NV Cache Power Management supported: No
SMART ATTRIBUTES:
ID Description Status Value Worst Threshold Raw Value TEC
---------------------------------------------------------------------------------------------------------------------------------------------
5 Reallocated Sector Count OK 100 100 10 0 N/A
9 Power On Time OK 99 99 0 1354 N/A
12 Power Cycle Count OK 99 99 0 688 N/A
177 Used Reserved Block Count (Chip) OK 99 99 0 2 N/A
179 Used Reserved Block Count (Total) OK 100 100 10 0 N/A
181 Program Fail Count (Total) OK 100 100 10 0 N/A
182 Erase Fail Count (Total) OK 100 100 10 0 N/A
183 Runtime bad block (Total) OK 100 100 10 0 N/A
187 Reported Uncorrectable Errors OK 100 100 0 0 N/A
190 Air Flow temperature OK 63 47 0 37 N/A
195 ECC Error Rate OK 200 200 0 0 N/A
199 UltraDMA CRC Error Count OK 100 100 0 0 N/A
235 Power Recovery Count OK 99 99 0 10 N/A
241 Total LBAs Written OK 99 99 0 2584173079 N/A
SMART HISTORY:
Attribute ID: 5 Attribute Name: Reallocated Sector Count
Date Value Worst Raw
---------------------------------------------------------------------------------------------------------------------------------------------
No history
Attribute ID: 9 Attribute Name: Power On Time
Date Value Worst Raw
---------------------------------------------------------------------------------------------------------------------------------------------
No history
Attribute ID: 12 Attribute Name: Power Cycle Count
Date Value Worst Raw
---------------------------------------------------------------------------------------------------------------------------------------------
No history
Attribute ID: 177 Attribute Name: Used Reserved Block Count (Chip)
Date Value Worst Raw
---------------------------------------------------------------------------------------------------------------------------------------------
No history
Attribute ID: 179 Attribute Name: Used Reserved Block Count (Total)
Date Value Worst Raw
---------------------------------------------------------------------------------------------------------------------------------------------
No history
Attribute ID: 181 Attribute Name: Program Fail Count (Total)
Date Value Worst Raw
---------------------------------------------------------------------------------------------------------------------------------------------
No history
Attribute ID: 182 Attribute Name: Erase Fail Count (Total)
Date Value Worst Raw
---------------------------------------------------------------------------------------------------------------------------------------------
No history
Attribute ID: 183 Attribute Name: Runtime bad block (Total)
Date Value Worst Raw
---------------------------------------------------------------------------------------------------------------------------------------------
No history
Attribute ID: 187 Attribute Name: Reported Uncorrectable Errors
Date Value Worst Raw
---------------------------------------------------------------------------------------------------------------------------------------------
No history
Attribute ID: 190 Attribute Name: Air Flow temperature
Date Value Worst Raw
---------------------------------------------------------------------------------------------------------------------------------------------
No history
Attribute ID: 195 Attribute Name: ECC Error Rate
Date Value Worst Raw
---------------------------------------------------------------------------------------------------------------------------------------------
No history
Attribute ID: 199 Attribute Name: UltraDMA CRC Error Count
Date Value Worst Raw
---------------------------------------------------------------------------------------------------------------------------------------------
No history
Attribute ID: 235 Attribute Name: Power Recovery Count
Date Value Worst Raw
---------------------------------------------------------------------------------------------------------------------------------------------
No history
Attribute ID: 241 Attribute Name: Total LBAs Written
Date Value Worst Raw
---------------------------------------------------------------------------------------------------------------------------------------------
No history
