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Разный Power_On_Hours на дисках в RAID1

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Имеется RAID1, состоит из 2-х дисков, диски одинаковые покупались одновременно, ставились тоже одновременно. Работают в домашнем сервачке 24/7.

На днях полетел один диск не из этого рейда и я бросился проверять smart показатели на остальных дисках. Вот что меня удивило: 

# cat /proc/mdstat 
Personalities : [raid1] 
md1 : active raid1 sdd1[0] sde1[1]
      1953511376 blocks super 1.2 [2/2] [UU]
      
unused devices: <none>
# smartctl -A /dev/sdd | grep Power\_On
  9 Power_On_Hours          0x0032   085   085   000    Old_age   Always       -       11364
# smartctl -A /dev/sde | grep Power\_On
  9 Power_On_Hours          0x0032   091   091   000    Old_age   Always       -       6592
Такое в принципе возможно?

К слову полетевший диск на другом компе определяется, smart показатели в норме, проверка пройдена, самодиагностика без ошибок, но по ощущениям подтупливает при просмотре. 

# smartctl -A /dev/sdd
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-3.14.1-1-ARCH] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF READ SMART DATA SECTION ===
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   200   200   051    Pre-fail  Always       -       0
  3 Spin_Up_Time            0x0027   180   179   021    Pre-fail  Always       -       5958
  4 Start_Stop_Count        0x0032   100   100   000    Old_age   Always       -       209
  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   051   051   000    Old_age   Always       -       36408
 10 Spin_Retry_Count        0x0032   100   100   000    Old_age   Always       -       0
 11 Calibration_Retry_Count 0x0032   100   100   000    Old_age   Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       150
192 Power-Off_Retract_Count 0x0032   200   200   000    Old_age   Always       -       48
193 Load_Cycle_Count        0x0032   168   168   000    Old_age   Always       -       98830
194 Temperature_Celsius     0x0022   121   102   000    Old_age   Always       -       29
196 Reallocated_Event_Count 0x0032   200   200   000    Old_age   Always       -       0
197 Current_Pending_Sector  0x0032   200   200   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0030   200   200   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x0032   200   200   000    Old_age   Always       -       2
200 Multi_Zone_Error_Rate   0x0008   200   200   000    Old_age   Offline      -       0

Я вот думаю может маман на сервачке чудит?

★

Такое в принципе возможно ?

После первого включения проверял ? А то мало ли... S/N близкие, или далеко друг от друга ?

smart показатели в норме, проверка пройдена

А пониже, в логе smart, ошибки зафиксированы какие-нибудь ?

AS ★★★★★
()
Ответ на: комментарий от AS

Да, вначале точно все ровно было 

# smartctl -i /dev/sdd
smartctl 6.1 2013-03-16 r3800 [x86_64-linux-3.11.4-gentoo] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Western Digital Red (AF)
Device Model:     WDC WD20EFRX-68AX9N0
Serial Number:    WD-WMC1T0979596
LU WWN Device Id: 5 0014ee 602df4d4c
Firmware Version: 80.00A80
User Capacity:    2,000,398,934,016 bytes [2.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ACS-2 (minor revision not indicated)
SATA Version is:  SATA 3.0, 6.0 Gb/s (current: 3.0 Gb/s)
Local Time is:    Wed Apr 23 13:14:19 2014 MSK
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

# smartctl -i /dev/sde
smartctl 6.1 2013-03-16 r3800 [x86_64-linux-3.11.4-gentoo] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Western Digital Red (AF)
Device Model:     WDC WD20EFRX-68AX9N0
Serial Number:    WD-WMC1T0846646
LU WWN Device Id: 5 0014ee 058c99f12
Firmware Version: 80.00A80
User Capacity:    2,000,398,934,016 bytes [2.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ACS-2 (minor revision not indicated)
SATA Version is:  SATA 3.0, 6.0 Gb/s (current: 3.0 Gb/s)
Local Time is:    Wed Apr 23 13:15:03 2014 MSK
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
Вот полный выхлоп по полетевшему диску 
# smartctl -a /dev/sdd
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-3.14.1-1-ARCH] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Western Digital Caviar Green
Device Model:     WDC WD15EADS-00P8B0
Serial Number:    WD-WMAVU0392923
LU WWN Device Id: 5 0014ee 0ac49eb82
Firmware Version: 01.00A01
User Capacity:    1 500 301 910 016 bytes [1,50 TB]
Sector Size:      512 bytes logical/physical
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ATA8-ACS (minor revision not indicated)
SATA Version is:  SATA 2.6, 3.0 Gb/s
Local Time is:    Wed Apr 23 13:00:39 2014 MSK
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

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:      (   0)	The previous self-test routine completed
					without error or no self-test has ever 
					been run.
Total time to complete Offline 
data collection: 		(33900) 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: 	 ( 387) minutes.
Conveyance self-test routine
recommended polling time: 	 (   5) minutes.
SCT capabilities: 	       (0x303f)	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   200   200   051    Pre-fail  Always       -       0
  3 Spin_Up_Time            0x0027   180   179   021    Pre-fail  Always       -       5958
  4 Start_Stop_Count        0x0032   100   100   000    Old_age   Always       -       209
  5 Reallocated_Sector_Ct   0x0033   200   200   140    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x002e   100   253   000    Old_age   Always       -       0
  9 Power_On_Hours          0x0032   051   051   000    Old_age   Always       -       36409
 10 Spin_Retry_Count        0x0032   100   100   000    Old_age   Always       -       0
 11 Calibration_Retry_Count 0x0032   100   100   000    Old_age   Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       150
192 Power-Off_Retract_Count 0x0032   200   200   000    Old_age   Always       -       48
193 Load_Cycle_Count        0x0032   168   168   000    Old_age   Always       -       98833
194 Temperature_Celsius     0x0022   117   102   000    Old_age   Always       -       33
196 Reallocated_Event_Count 0x0032   200   200   000    Old_age   Always       -       0
197 Current_Pending_Sector  0x0032   200   200   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0030   200   200   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x0032   200   200   000    Old_age   Always       -       2
200 Multi_Zone_Error_Rate   0x0008   200   200   000    Old_age   Offline      -       0

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline       Completed without error       00%     36389         -
# 2  Short offline       Completed without error       00%     36366         -
# 3  Short offline       Completed without error       00%     36342         -
# 4  Extended offline    Completed without error       00%     36326         -
# 5  Short offline       Completed without error       00%     36318         -
# 6  Short offline       Completed without error       00%     36295         -
# 7  Short offline       Completed without error       00%     36271         -
# 8  Short offline       Completed without error       00%     36248         -
# 9  Short offline       Completed without error       00%     36224         -
#10  Short offline       Completed without error       00%     36201         -
#11  Short offline       Completed without error       00%     36177         -
#12  Extended offline    Completed without error       00%     36161         -
#13  Short offline       Completed without error       00%     36153         -
#14  Short offline       Completed without error       00%     36130         -
#15  Short offline       Completed without error       00%     36106         -
#16  Short offline       Completed without error       00%     36083         -
#17  Short offline       Completed without error       00%     36059         -
#18  Short offline       Completed without error       00%     36036         -
#19  Short offline       Completed without error       00%     36022         -
#20  Extended offline    Completed without error       00%     36006         -
#21  Short offline       Completed without error       00%     35998         -

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.

menefis ★
() автор топика
Ответ на: комментарий от menefis

Да, вначале точно все ровно было

Тогда нет предположений, связанных с железкой. Напарник есть ? Могли проморгать отвал диска (хотя отпасть он по питанию должен был, а не просто так), и мог ли напарник вернуть его в массив втихаря ?

SMART Error Log Version: 1
No Errors Logged

Тут, явно, ничего подозрительного.

AS ★★★★★
()
Ответ на: комментарий от AS

Не, напарника нет. Сервачок домашний :) кроме меня некому

menefis ★
() автор топика
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