Dateien verschwinden plötzlich (und erscheinen wieder) auf einem unter Linux verwendeten NTFS-USB-Laufwerk?

Ich habe kürzlich ein tragbares externes USB-USB-Laufwerk mit 1 TB gekauft, das ich hauptsächlich mit meinem Ubuntu-Laptop verwenden möchte, aber ich möchte es auch mit anderen Betriebssystemen verwenden können. Es wurde als NTFS formatiert, und das scheint die beste Option zu sein, was ich gelesen habe.

Es gab andere Probleme damit, aber was mich wirklich beschäftigt, ist, dass ich gerade einen großen Ordner mit Daten hatte, der plötzlich spurlos verschwunden ist und dann genauso plötzlich wieder angezeigt wird, nachdem ich die Festplatte bereits mehrere Tage lang mehrere Male verwendet hatte.

Warum könnte das geschehen sein und wie kann ich verhindern, dass es wieder passiert?

Hier sind die Ergebnisse, die ich beim Laufen bekommen habe sudo smartctl -d sat --all /dev/sdc.

=== START OF INFORMATION SECTION === Model Family: Seagate Momentus SpinPoint M8 (AF) Device Model: ST1000LM024 HN-M101MBB Serial Number: S30CJ9HF237802 LU WWN Device Id: 5 0004cf 20c8d5561 Firmware Version: 2BA30001 User Capacity: 1,000,204,886,016 bytes [1.00 TB] Sector Sizes: 512 bytes logical, 4096 bytes physical Rotation Rate: 5400 rpm Device is: In smartctl database [for details use: -P show] ATA Version is: ATA8-ACS T13/1699-D revision 6 SATA Version is: SATA 3.0, 6.0 Gb/s (current: 3.0 Gb/s) Local Time is: Wed Aug 6 15:29:48 2014 EDT SMART support is: Available - device has SMART capability. SMART support is: Enabled  === START OF READ SMART DATA SECTION === SMART overall-health self-assessment test result: PASSED Warning: This result is based on an Attribute check.  General SMART Values: Offline data collection status: (0x00) Offline data collection activity was never started. 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: (12660) 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: ( 211) minutes. SCT capabilities: (0x003f) SCT Status supported. SCT Error Recovery Control supported. SCT Feature Control supported. SCT Data Table supported.  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 100 100 051 Pre-fail Always - 0 2 Throughput_Performance 0x0026 252 252 000 Old_age Always - 0 3 Spin_Up_Time 0x0023 090 090 025 Pre-fail Always - 3115 4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 44 5 Reallocated_Sector_Ct 0x0033 252 252 010 Pre-fail Always - 0 7 Seek_Error_Rate 0x002e 252 252 051 Old_age Always - 0 8 Seek_Time_Performance 0x0024 252 252 015 Old_age Offline - 0 9 Power_On_Hours 0x0032 100 100 000 Old_age Always - 39 10 Spin_Retry_Count 0x0032 252 252 051 Old_age Always - 0 11 Calibration_Retry_Count 0x0032 100 100 000 Old_age Always - 1 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 36 191 G-Sense_Error_Rate 0x0022 252 252 000 Old_age Always - 0 192 Power-Off_Retract_Count 0x0022 252 252 000 Old_age Always - 0 194 Temperature_Celsius 0x0002 064 053 000 Old_age Always - 31 (Min/Max 19/47) 195 Hardware_ECC_Recovered 0x003a 100 100 000 Old_age Always - 0 196 Reallocated_Event_Count 0x0032 252 252 000 Old_age Always - 0 197 Current_Pending_Sector 0x0032 252 252 000 Old_age Always - 0 198 Offline_Uncorrectable 0x0030 252 252 000 Old_age Offline - 0 199 UDMA_CRC_Error_Count 0x0036 200 200 000 Old_age Always - 0 200 Multi_Zone_Error_Rate 0x002a 100 100 000 Old_age Always - 13 223 Load_Retry_Count 0x0032 100 100 000 Old_age Always - 1 225 Load_Cycle_Count 0x0032 100 100 000 Old_age Always - 719  SMART Error Log Version: 1 No Errors Logged  SMART Self-test log structure revision number 1 No self-tests have been logged. [To run self-tests, use: smartctl -t]   SMART Selective self-test log data structure revision number 0 Note: revision number not 1 implies that no selective self-test has ever been run SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS 1 0 0 Completed [00% left] (0-65535) 2 0 0 Not_testing 3 0 0 Not_testing 4 0 0 Not_testing 5 0 0 Not_testing 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.