Getting error while borg check... Faulty Disk?

Thomas126 · Apr 7th 2025

Hi guys,

i run into a weird problem atm. I have a OMV System at my parents house for backup purposes. They run every night via borg over SSH. Which still works fine.

A couple of days ago I received a system mail by that system indicating corruption errors.

I then tried to borg check the repo which resulted in an error and stopped: I/O Error.

Today i ran smart for the drive and btrfs start to check what is going on.

The SMART overview shows good Status for the drive.

The btrfs start command gets aborted after 25min and notes 20 ununcorrectable errors.

brtfs scrub:

Code

root@system:/srv/dev-disk-by-uuid# btrfs scrub status /srv/dev-disk-by-uuid
UUID:             
Scrub started:    Mon Apr  7 10:25:42 2025
Status:           aborted
Duration:         0:25:32
Total to scrub:   1.84TiB
Rate:             116.65MiB/s
Error summary:    verify=20
  Corrected:      0
  Uncorrectable:  20
  Unverified:     0

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SMART:

Code

smartctl 7.3 2022-02-28 r5338 [x86_64-linux-6.1.0-31-amd64] (local build)
Copyright (C) 2002-22, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Seagate Desktop HDD.15
Device Model:     ST4000DM000-1F2168
Serial Number:    Z300VZ69
LU WWN Device Id: 5 000c50 064d5eeb6
Firmware Version: CC52
User Capacity:    4,000,787,030,016 bytes [4.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    5900 rpm
Form Factor:      3.5 inches
Device is:        In smartctl database 7.3/5671
ATA Version is:   ATA8-ACS T13/1699-D revision 4
SATA Version is:  SATA 3.1, 6.0 Gb/s (current: 1.5 Gb/s)
Local Time is:    Mon Apr  7 11:51:46 2025 CEST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
AAM feature is:   Unavailable
APM level is:     128 (minimum power consumption without standby)
Rd look-ahead is: Enabled
Write cache is:   Enabled
DSN feature is:   Unavailable
ATA Security is:  Disabled, NOT FROZEN [SEC1]
Wt Cache Reorder: Unavailable

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

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:         (  612) seconds.
Offline data collection
capabilities:              (0x73) SMART execute Offline immediate.
                    Auto Offline data collection on/off support.
                    Suspend Offline collection upon new
                    command.
                    No 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:      (   1) minutes.
Extended self-test routine
recommended polling time:      ( 539) minutes.
Conveyance self-test routine
recommended polling time:      (   2) minutes.
SCT capabilities:            (0x1085)    SCT Status supported.

SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAGS    VALUE WORST THRESH FAIL RAW_VALUE
  1 Raw_Read_Error_Rate     POSR--   119   099   006    -    210555296
  3 Spin_Up_Time            PO----   098   092   000    -    0
  4 Start_Stop_Count        -O--CK   099   099   020    -    1994
  5 Reallocated_Sector_Ct   PO--CK   100   100   010    -    0
  7 Seek_Error_Rate         POSR--   065   060   030    -    3360155
  9 Power_On_Hours          -O--CK   096   096   000    -    3834
 10 Spin_Retry_Count        PO--C-   100   100   097    -    0
 12 Power_Cycle_Count       -O--CK   100   100   020    -    341
183 Runtime_Bad_Block       -O--CK   099   099   000    -    1
184 End-to-End_Error        -O--CK   100   100   099    -    0
187 Reported_Uncorrect      -O--CK   100   100   000    -    0
188 Command_Timeout         -O--CK   100   100   000    -    0 0 0
189 High_Fly_Writes         -O-RCK   099   099   000    -    1
190 Airflow_Temperature_Cel -O---K   062   051   045    -    38 (Min/Max 38/43)
191 G-Sense_Error_Rate      -O--CK   100   100   000    -    0
192 Power-Off_Retract_Count -O--CK   100   100   000    -    1668
193 Load_Cycle_Count        -O--CK   093   093   000    -    14469
194 Temperature_Celsius     -O---K   038   049   000    -    38 (0 18 0 0 0)
197 Current_Pending_Sector  -O--C-   100   100   000    -    0
198 Offline_Uncorrectable   ----C-   100   100   000    -    0
199 UDMA_CRC_Error_Count    -OSRCK   200   200   000    -    0
240 Head_Flying_Hours       ------   100   253   000    -    534h+53m+02.792s
241 Total_LBAs_Written      ------   100   253   000    -    18847853013
242 Total_LBAs_Read         ------   100   253   000    -    6451554542
                            ||||||_ K auto-keep
                            |||||__ C event count
                            ||||___ R error rate
                            |||____ S speed/performance
                            ||_____ O updated online
                            |______ P prefailure warning

General Purpose Log Directory Version 1
SMART           Log Directory Version 1 [multi-sector log support]
Address    Access  R/W   Size  Description
0x00       GPL,SL  R/O      1  Log Directory
0x01           SL  R/O      1  Summary SMART error log
0x02           SL  R/O      5  Comprehensive SMART error log
0x03       GPL     R/O      5  Ext. Comprehensive SMART error log
0x06           SL  R/O      1  SMART self-test log
0x07       GPL     R/O      1  Extended self-test log
0x09           SL  R/W      1  Selective self-test log
0x10       GPL     R/O      1  NCQ Command Error log
0x11       GPL     R/O      1  SATA Phy Event Counters log
0x21       GPL     R/O      1  Write stream error log
0x22       GPL     R/O      1  Read stream error log
0x24       GPL     R/O   1223  Current Device Internal Status Data log
0x25       GPL     R/O   1223  Saved Device Internal Status Data log
0x30       GPL,SL  R/O      9  IDENTIFY DEVICE data log
0x80-0x9f  GPL,SL  R/W     16  Host vendor specific log
0xa1       GPL,SL  VS      20  Device vendor specific log
0xa2       GPL     VS    4496  Device vendor specific log
0xa8       GPL,SL  VS     129  Device vendor specific log
0xa9       GPL,SL  VS       1  Device vendor specific log
0xab       GPL     VS       1  Device vendor specific log
0xb0       GPL     VS    5176  Device vendor specific log
0xbe-0xbf  GPL     VS   65535  Device vendor specific log
0xc0       GPL,SL  VS       1  Device vendor specific log
0xc1       GPL,SL  VS      10  Device vendor specific log
0xc3       GPL,SL  VS       8  Device vendor specific log
0xc4       GPL,SL  VS       5  Device vendor specific log
0xe0       GPL,SL  R/W      1  SCT Command/Status
0xe1       GPL,SL  R/W      1  SCT Data Transfer

SMART Extended Comprehensive Error Log Version: 1 (5 sectors)
No Errors Logged

SMART Extended Self-test Log Version: 1 (1 sectors)
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.

SCT Status Version:                  3
SCT Version (vendor specific):       522 (0x020a)
Device State:                        Active (0)
Current Temperature:                    40 Celsius
Power Cycle Min/Max Temperature:     40/43 Celsius
Lifetime    Min/Max Temperature:     18/49 Celsius
Under/Over Temperature Limit Count:   0/0

SCT Data Table command not supported

SCT Error Recovery Control command not supported

Device Statistics (GP/SMART Log 0x04) not supported

Pending Defects log (GP Log 0x0c) not supported

SATA Phy Event Counters (GP Log 0x11)
ID      Size     Value  Description
0x000a  2            1  Device-to-host register FISes sent due to a COMRESET
0x0001  2            0  Command failed due to ICRC error
0x0003  2            0  R_ERR response for device-to-host data FIS
0x0004  2            0  R_ERR response for host-to-device data FIS
0x0006  2            0  R_ERR response for device-to-host non-data FIS
0x0007  2            0  R_ERR response for host-to-device non-data FIS

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So i guess my HDD might be broken? I am not sure if that is the case, because i can still write on the drive and access files.

Should i look for the cables again? Swap the drive?

Can you guys help me in what the specific problem is and what i should do next? Any help is appreciated!

Best regards

Tom

Thomas126 · Apr 7th 2025

borg check:

Code

borg check /srv/dev-disk-by-uuid XYZ --save-space
Local Exception
Traceback (most recent call last):  File "/usr/lib/python3/dist-packages/borg/archiver.py", line 5213, in main    exit_code = archiver.run(args)                ^^^^^^^^^^^^^^^^^^  File "/usr/lib/python3/dist-packages/borg/archiver.py", line 5144, in run    return set_ec(func(args))                  ^^^^^^^^^^  File "/usr/lib/python3/dist-packages/borg/archiver.py", line 183, in wrapper    return method(self, args, repository=repository, **kwargs)           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  File "/usr/lib/python3/dist-packages/borg/archiver.py", line 343, in do_check    if not repository.check(repair=args.repair, save_space=args.save_space, max_duration=args.max_duration):           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  File "/usr/lib/python3/dist-packages/borg/repository.py", line 1039, in check    objects = list(self.io.iter_objects(segment))              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  File "/usr/lib/python3/dist-packages/borg/repository.py", line 1512, in iter_objects    size, tag, key, data = self._read(fd, self.header_fmt, header, segment, offset,                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  File "/usr/lib/python3/dist-packages/borg/repository.py", line 1606, in _read    data = fd.read(length)           ^^^^^^^^^^^^^^^
OSError: [Errno 5] Input/output error

Platform: Linux 6.1.0-31-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.128-1 (2025-02-07) x86_64
Linux: Unknown Linux  Borg: 1.2.4  Python: CPython 3.11.2 msgpack: 1.0.3 fuse: None [pyfuse3,llfuse]
PID: 132859  CWD: /root
sys.argv: ['/usr/bin/borg', 'check', '/srv/dev-disk-by-uuid- XYZ', '--save-space']
SSH_ORIGINAL_COMMAND: None

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