Comprei recentemente uma unidade USB externa portátil de 1 TB que pretendo usar principalmente com meu laptop Ubuntu, mas gostaria de poder usá-la também com outros sistemas operacionais. Ele veio formatado como NTFS, e essa parece ser a melhor opção do que li.
Houve outros problemas, mas o que realmente me preocupa é que, de repente, uma grande pasta de dados desapareceu sem deixar vestígios e reapareceu de repente, depois de já ter usado a unidade várias vezes durante vários dias.
Por que isso aconteceu e como posso evitar que isso aconteça novamente?
Aqui estão os resultados que recebi da execução de 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.