My external drive cannot be accessed. It seems that the auto-mount hangs. When I click “Mount”, I get “unable to access volume – an operation is already pending.” When I try to remove the drive, I get: “Unable to Stop WCD – Error opening /dev/sdb for fsync: Device or resource busy.”
fdisk -l /dev/sdb hangs.
dmesg contains the following recent warnings:
task scsi_eh_6:5019 blocked for more than 120 seconds ... task fdisk blocked for more than 120 seconds ... task mount:5301 blocked for more than 120 seconds ... task pool-udisksd:5059 blocked for more than 120 seconds
Etc. Every time I try to access the drive, the process trying to access it hangs and can’t access it. I tried to run badblocks, and even it froze after twenty minutes – badblocks blocked for more than 120 seconds, etc.
I am not sure what kind of hardware problem causes every process trying to talk to the disk (including all diagnostic tools) to freeze. None of them can be terminated by Ctrl-C, I have to exit the terminal. What should I do?
=== START OF INFORMATION SECTION === Model Family: Western Digital Blue Device Model: WDC WD10EZEX-08WN4A0 Serial Number: WD-WCC6Y0KC7LX4 LU WWN Device Id: 5 0014ee 20e20948d Firmware Version: 01.01A01 User Capacity: 1,000,204,886,016 bytes [1.00 TB] Sector Sizes: 512 bytes logical, 4096 bytes physical Rotation Rate: 7200 rpm Form Factor: 3.5 inches Device is: In smartctl database [for details use: -P show] ATA Version is: ACS-3 T13/2161-D revision 3b SATA Version is: SATA 3.1, 6.0 Gb/s (current: 3.0 Gb/s) Local Time is: Thu Sep 26 17:46:58 2019 CDT SMART support is: Available - device has SMART capability. SMART support is: Enabled === START OF READ SMART DATA SECTION === SMART Status command failed: Connection timed out SMART overall-health self-assessment test result: PASSED Warning: This result is based on an Attribute check. General SMART Values: Offline data collection status: (0x82) Offline data collection activity was completed without error. Auto Offline Data Collection: Enabled. 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: (12000) seconds. Offline data collection capabilities: (0x7b) SMART execute Offline immediate. Auto Offline data collection on/off support. Suspend Offline collection upon new command. Offline surface scan supported. Self-test supported. 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: ( 124) minutes. Conveyance self-test routine recommended polling time: ( 5) minutes. SCT capabilities: (0x3035) SCT Status 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 199 198 051 Pre-fail Always - 67 3 Spin_Up_Time 0x0027 174 173 021 Pre-fail Always - 2283 4 Start_Stop_Count 0x0032 092 092 000 Old_age Always - 8792 5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0 7 Seek_Error_Rate 0x002e 200 200 000 Old_age Always - 0 9 Power_On_Hours 0x0032 078 078 000 Old_age Always - 16789 10 Spin_Retry_Count 0x0032 100 100 000 Old_age Always - 0 11 Calibration_Retry_Count 0x0032 100 253 000 Old_age Always - 0 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 21 192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 9 193 Load_Cycle_Count 0x0032 197 197 000 Old_age Always - 9697 194 Temperature_Celsius 0x0022 115 102 000 Old_age Always - 28 196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0 197 Current_Pending_Sector 0x0032 199 199 000 Old_age Always - 166 198 Offline_Uncorrectable 0x0030 200 199 000 Old_age Offline - 76 199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 0 200 Multi_Zone_Error_Rate 0x0008 200 200 000 Old_age Offline - 83 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 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 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. Command "Execute SMART Short self-test routine immediately in off-line mode" failed: Connection timed out
The gnome-disks utility says that the Ext4 filesystem on the disk is undamaged, and the smartctl tests just return “connection timed out.” So what’s up?