SMART error (CurrentPendingSector) detected on host

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Wolfeman0101

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I got an email tonight saying this. Not sure what it means or how to fix it.

Code:
This email was generated by the smartd daemon running on:

   host name: nibbler.local
  DNS domain: [Unknown]
  NIS domain:

The following warning/error was logged by the smartd daemon:

Device: /dev/ada2, 1 Currently unreadable (pending) sectors


For details see host's SYSLOG.

You can also use the smartctl utility for further investigation.
No additional email messages about this problem will be sent.


Code:
[root@nibbler] /etc# smartctl -q noserial -a /dev/ada2

smartctl 5.43 2012-06-30 r3573 [FreeBSD 8.3-RELEASE-p4 amd64] (local build)
Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF INFORMATION SECTION ===
Model Family:     Western Digital Caviar Green (Adv. Format)
Device Model:     WDC WD20EARX-00PASB0
Firmware Version: 51.0AB51
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:   8
ATA Standard is:  Exact ATA specification draft version not indicated
Local Time is:    Sun Nov 18 21:11:34 2012 PST
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:  (0x85)	Offline data collection activity
					was aborted by an interrupting command from host.
					Auto Offline Data Collection: Enabled.
Self-test execution status:      ( 121)	The previous self-test completed having
					the read element of the test failed.
Total time to complete Offline 
data collection: 		(40860) 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: 	 ( 394) 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   200   200   051    Pre-fail  Always       -       0
  3 Spin_Up_Time            0x0027   175   164   021    Pre-fail  Always       -       6208
  4 Start_Stop_Count        0x0032   100   100   000    Old_age   Always       -       64
  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   096   096   000    Old_age   Always       -       3070
 10 Spin_Retry_Count        0x0032   100   253   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       -       62
192 Power-Off_Retract_Count 0x0032   200   200   000    Old_age   Always       -       57
193 Load_Cycle_Count        0x0032   195   195   000    Old_age   Always       -       16579
194 Temperature_Celsius     0x0022   120   102   000    Old_age   Always       -       30
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       -       0
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  Extended offline    Completed: read failure       90%      3065         1159076584
# 2  Short offline       Completed: read failure       90%      3064         1159076584
# 3  Short offline       Completed without error       00%      3048         -
# 4  Short offline       Completed without error       00%      3026         -
# 5  Short offline       Completed without error       00%      3002         -
# 6  Short offline       Completed without error       00%      2978         -
# 7  Short offline       Completed without error       00%      2954         -
# 8  Short offline       Completed without error       00%      2930         -
# 9  Short offline       Completed without error       00%      2907         -
#10  Short offline       Completed without error       00%      2883         -
#11  Short offline       Completed without error       00%      2859         -
#12  Short offline       Completed without error       00%      2835         -
#13  Short offline       Completed without error       00%      2811         -
#14  Short offline       Completed without error       00%      2787         -
#15  Short offline       Completed without error       00%      2769         -
#16  Short offline       Completed without error       00%      2745         -
#17  Short offline       Completed without error       00%      2721         -
#18  Short offline       Completed without error       00%      2697         -
#19  Short offline       Completed without error       00%      2673         -
#20  Short offline       Completed without error       00%      2649         -
#21  Short offline       Completed without error       00%      2577         -

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.

 

Wolfeman0101

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