cómo entender SMART linux ext4

cómo entender SMART linux ext4

Inicialmente publiqué esto en el foro de la comunidad openmediavault y nunca obtuve una respuesta. Espero obtener alguna idea sobre SMART.

Compré esta unidadAmazonasTodo parecía funcionar bien, así que compré otro y tengo dos exactamente del mismo modelo, sin embargo, el primero comenzó a mostrar sectores defectuosos. Sé que este es un tema que se discute mucho y lamento que otra persona paranoica se preocupe por su impulso, pero la gente se vuelve paranoica con sus impulsos y yo soy uno de ellos.

Configuré de manera inteligente una GUI desde openmediavault y configuré algunos horarios una vez al mes (por cierto, ¿está bien o lo que se recomienda para la programación inteligente)? ​​El segundo disco duro que pedí funciona bien y también el SSD que ejecuta el sistema operativo OMV.

Una vez que recibí mi primer correo electrónico de Smart diciendo que tenía 24 sectores actualmente ilegibles (pendientes). Me preocupé. Leí mucho y entendí si estaba en lo cierto, estaba esperando leer esos sectores y eliminar los datos que pueden. reemplace y deje a un lado el sector defectuoso. Podría estar muy equivocado. Este es mi correo electrónico diario. Captura de pantalla del correo electrónico que recibí Recibí este una vez después de reiniciar.2 sectores fuera de línea incorregibles ¿Alguien podría explicarme Reallocated_Sector_Ct?Capturas de pantalla de atributos de información SMART¿Queda una pregunta más y de por vida?Registros de autoprueba Esa es mi información si hago smartctl -x.Cualquier ayuda o información será muy apreciada.

smartctl 6.6 2016-05-31 r4324 [x86_64-linux-4.19.0-0.bpo.4-amd64] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Device Model:     HITACHI HUS724040ALE640
Serial Number:    PAGL2EEW
LU WWN Device Id: 5 000cca 22bc837d0
Firmware Version: MJAONS04
User Capacity:    4,000,787,030,016 bytes [4.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    7200 rpm
Form Factor:      3.5 inches
Device is:        Not in smartctl database [for details use: -P showall]
ATA Version is:   ATA8-ACS T13/1699-D revision 4
SATA Version is:  SATA 3.0, 6.0 Gb/s (current: 3.0 Gb/s)
Local Time is:    Sat May 11 14:25:39 2019 MST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
AAM feature is:   Unavailable
APM level is:     1 (minimum power consumption with standby)
Rd look-ahead is: Enabled
Write cache is:   Disabled
ATA Security is:  Disabled, frozen [SEC2]
Wt Cache Reorder: Enabled

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

General SMART Values:
Offline data collection status:  (0x84) Offline data collection activity
                  was suspended by an interrupting command from host.
                  Auto Offline Data Collection: Enabled.
Self-test execution status:      ( 114) The previous self-test completed having
                  the read element of the test failed.
Total time to complete Offline
data collection:        (35402) 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:    (   1) minutes.
Extended self-test routine
recommended polling time:    ( 590) minutes.
SCT capabilities:          (0x003d) 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          FLAGS    VALUE WORST THRESH FAIL RAW_VALUE
1 Raw_Read_Error_Rate     PO-R--   100   100   016    -    0
2 Throughput_Performance  P-S---   137   137   054    -    79
3 Spin_Up_Time            POS---   149   149   024    -    439 (Average 601)
4 Start_Stop_Count        -O--C-   100   100   000    -    10
5 Reallocated_Sector_Ct   PO--CK   100   100   005    -    1
7 Seek_Error_Rate         PO-R--   100   100   067    -    0
8 Seek_Time_Performance   P-S---   117   117   020    -    36
9 Power_On_Hours          -O--C-   100   100   000    -    1154
10 Spin_Retry_Count        PO--C-   100   100   060    -    0
12 Power_Cycle_Count       -O--CK   100   100   000    -    10
192 Power-Off_Retract_Count -O--CK   100   100   000    -    14
193 Load_Cycle_Count        -O--C-   100   100   000    -    14
194 Temperature_Celsius     -O----   157   157   000    -    38 (Min/Max 25/42)
196 Reallocated_Event_Count -O--CK   100   100   000    -    1
197 Current_Pending_Sector  -O---K   100   100   000    -    24
198 Offline_Uncorrectable   ---R--   100   100   000    -    0
199 UDMA_CRC_Error_Count    -O-R--   200   200   000    -    0
                          ||||||_ 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
0x03       GPL     R/O      1  Ext. Comprehensive SMART error log
0x04       GPL     R/O      7  Device Statistics log
0x06           SL  R/O      1  SMART self-test log
0x07       GPL     R/O      1  Extended self-test log
0x08       GPL     R/O      2  Power Conditions log
0x09           SL  R/W      1  Selective self-test log
0x10       GPL     R/O      1  SATA NCQ Queued Error log
0x11       GPL     R/O      1  SATA Phy Event Counters log
0x20       GPL     R/O      1  Streaming performance log [OBS-8]
0x21       GPL     R/O      1  Write stream error log
0x22       GPL     R/O      1  Read stream error log
0x24       GPL     R/O    256  Current Device Internal Status Data log
0x25       GPL     R/O    256  Saved Device Internal Status Data log
0x80       GPL     R/W     63  Host vendor specific log
0x81-0x9f  GPL,SL  R/W     16  Host vendor specific log
0xa2       GPL     VS       1  Device vendor specific log
0xb2       GPL     VS      63  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 (1 sectors)
No Errors Logged

SMART Extended Self-test Log Version: 1 (1 sectors)
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Extended offline    Completed: read failure       20%       694         6207317768
# 2  Extended offline    Completed: read failure       20%       659         6207317768
# 3  Short offline       Completed without error       00%       651         -
# 4  Short offline       Completed without error       00%       651         -
# 5  Short offline       Completed without error       00%       606         -
# 6  Short offline       Completed without error       00%       201         -
# 7  Short offline       Completed without error       00%        48         -
# 8  Short offline       Completed without error       00%        23         -

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):       256 (0x0100)
SCT Support Level:                   1
Device State:                        SMART Off-line Data Collection executing in background (4)
Current Temperature:                    38 Celsius
Power Cycle Min/Max Temperature:     35/42 Celsius
Lifetime    Min/Max Temperature:     25/42 Celsius
Under/Over Temperature Limit Count:   0/0

SCT Temperature History Version:     2
Temperature Sampling Period:         1 minute
Temperature Logging Interval:        1 minute
Min/Max recommended Temperature:      0/60 Celsius
Min/Max Temperature Limit:           -40/70 Celsius
Temperature History Size (Index):    128 (41)

Index    Estimated Time   Temperature Celsius
42    2019-05-11 12:18    38  *******************
...    ..( 43 skipped).    ..  *******************
86    2019-05-11 13:02    38  *******************
87    2019-05-11 13:03    39  ********************
88    2019-05-11 13:04    39  ********************
89    2019-05-11 13:05    39  ********************
90    2019-05-11 13:06    38  *******************
91    2019-05-11 13:07    39  ********************
...    ..(  4 skipped).    ..  ********************
96    2019-05-11 13:12    39  ********************
97    2019-05-11 13:13    38  *******************
98    2019-05-11 13:14    39  ********************
99    2019-05-11 13:15    38  *******************
...    ..(  2 skipped).    ..  *******************
102    2019-05-11 13:18    38  *******************
103    2019-05-11 13:19    39  ********************
104    2019-05-11 13:20    39  ********************
105    2019-05-11 13:21    38  *******************
106    2019-05-11 13:22    38  *******************
107    2019-05-11 13:23    39  ********************
108    2019-05-11 13:24    38  *******************
...    ..(  2 skipped).    ..  *******************
111    2019-05-11 13:27    38  *******************
112    2019-05-11 13:28    39  ********************
113    2019-05-11 13:29    38  *******************
...    ..( 55 skipped).    ..  *******************
41    2019-05-11 14:25    38  *******************

SCT Error Recovery Control:
         Read:     70 (7.0 seconds)
        Write:     70 (7.0 seconds)

Device Statistics (GP Log 0x04)
Page  Offset Size        Value Flags Description
0x01  =====  =               =  ===  == General Statistics (rev 2) ==
0x01  0x008  4              10  ---  Lifetime Power-On Resets
0x01  0x018  6      6427412162  ---  Logical Sectors Written
0x01  0x020  6        13330664  ---  Number of Write Commands
0x01  0x028  6     13834904535  ---  Logical Sectors Read
0x01  0x030  6        54741934  ---  Number of Read Commands
0x03  =====  =               =  ===  == Rotating Media Statistics (rev 1) ==
0x03  0x008  4            1154  ---  Spindle Motor Power-on Hours
0x03  0x010  4            1154  ---  Head Flying Hours
0x03  0x018  4              14  ---  Head Load Events
0x03  0x020  4               1  ---  Number of Reallocated Logical Sectors
0x03  0x028  4               2  ---  Read Recovery Attempts
0x03  0x030  4               0  ---  Number of Mechanical Start Failures
0x04  =====  =               =  ===  == General Errors Statistics (rev 1) ==
0x04  0x008  4               0  ---  Number of Reported Uncorrectable Errors
0x04  0x010  4               0  ---  Resets Between Cmd Acceptance and Completion
0x05  =====  =               =  ===  == Temperature Statistics (rev 1) ==
0x05  0x008  1              38  ---  Current Temperature
0x05  0x010  1              36  N--  Average Short Term Temperature
0x05  0x018  1              36  N--  Average Long Term Temperature
0x05  0x020  1              42  ---  Highest Temperature
0x05  0x028  1              25  ---  Lowest Temperature
0x05  0x030  1              38  N--  Highest Average Short Term Temperature
0x05  0x038  1              25  N--  Lowest Average Short Term Temperature
0x05  0x040  1              37  N--  Highest Average Long Term Temperature
0x05  0x048  1              25  N--  Lowest Average Long Term Temperature
0x05  0x050  4               0  ---  Time in Over-Temperature
0x05  0x058  1              60  ---  Specified Maximum Operating Temperature
0x05  0x060  4               0  ---  Time in Under-Temperature
0x05  0x068  1               0  ---  Specified Minimum Operating Temperature
0x06  =====  =               =  ===  == Transport Statistics (rev 1) ==
0x06  0x008  4              43  ---  Number of Hardware Resets
0x06  0x010  4              20  ---  Number of ASR Events
0x06  0x018  4               0  ---  Number of Interface CRC Errors
                              |||_ C monitored condition met
                              ||__ D supports DSN
                              |___ N normalized value

SATA Phy Event Counters (GP Log 0x11)
ID      Size     Value  Description
0x0001  2            0  Command failed due to ICRC error
0x0002  2            0  R_ERR response for data FIS
0x0003  2            0  R_ERR response for device-to-host data FIS
0x0004  2            0  R_ERR response for host-to-device data FIS
0x0005  2            0  R_ERR response for non-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
0x0009  2            8  Transition from drive PhyRdy to drive PhyNRdy
0x000a  2            6  Device-to-host register FISes sent due to a COMRESET
0x000b  2            0  CRC errors within host-to-device FIS
0x000d  2            0  Non-CRC errors within host-to-device FIS

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