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 dmesg | grep EXT4-fs
EXT4-fs (sda2): mounted filesystem with ordered data mode. Opts: (null)
EXT4-fs (sda2): re-mounted. Opts: (null)
EXT4-fs (sda2): re-mounted. Opts: errors=remount-ro
EXT4-fs warning (device sda3): ext4_clear_journal_err:4531: Filesystem error recorded from previous mount: IO failure
EXT4-fs warning (device sda3): ext4_clear_journal_err:4532: Marking fs in need of filesystem check.
EXT4-fs (sda3): warning: mounting fs with errors, running e2fsck is recommended
EXT4-fs (sda3): recovery complete
EXT4-fs (sda3): mounted filesystem with ordered data mode. Opts: (null)
EXT4-fs (sda6): mounted filesystem with ordered data mode. Opts: (null)
EXT4-fs (sda7): warning: maximal mount count reached, running e2fsck is recommended
EXT4-fs (sda7): mounted filesystem with ordered data mode. Opts: (null)
EXT4-fs (sda3): error count: 5
EXT4-fs (sda3): initial error at 1384789633: ext4_journal_check_start:56
EXT4-fs (sda3): last error at 1384789758: ext4_remount:4771

 smartctl -a /dev/sda
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-3.11-3.dmz.2-liquorix-amd64] (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 WD10EADS-11M2B2
Serial Number:    WD-WCAV58289545
LU WWN Device Id: 5 0014ee 2aebbcafd
Firmware Version: 80.00A80
User Capacity:    1,000,204,886,016 bytes [1,00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes 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:    Mon Nov 18 17:12:35 2013 CET
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:                (20100) 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:        ( 231) minutes.
Conveyance self-test routine
recommended polling time:        (   5) minutes.
SCT capabilities:              (0x3031) 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   200   200   051    Pre-fail  Always       -       0
  3 Spin_Up_Time            0x0027   160   124   021    Pre-fail  Always       -       4991
  4 Start_Stop_Count        0x0032   099   099   000    Old_age   Always       -       1212
  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   087   087   000    Old_age   Always       -       10056
 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   099   099   000    Old_age   Always       -       1211
192 Power-Off_Retract_Count 0x0032   200   200   000    Old_age   Always       -       110
193 Load_Cycle_Count        0x0032   145   145   000    Old_age   Always       -       167610
194 Temperature_Celsius     0x0022   113   106   000    Old_age   Always       -       34
196 Reallocated_Event_Count 0x0032   200   200   000    Old_age   Always       -       0
197 Current_Pending_Sector  0x0032   200   200   000    Old_age   Always       -       1
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
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.