01 September 2010

S.M.A.R.T Western Digital My Book World 2ND Edition (White Light)

No matter how you look at it the hard drive in my computer is failing.




Fortunately I know "Data You Have Not Backed Up Is Data You Wouldn’t Mind Losing" so I'm not too worried and hopefully I'll be right when the drive does fail (I'm currently just trying to limp it through until I can replace it). But one of the drives I use is the Western Digital My Book World 2ND Edition (White Light) which due to its external nature I have no way of being warned about SMART errors. SMART warnings don't always necessarily correlate to an imminent HDD failure, but they are defiantly better then nothing.

So I set out to work out how to access the SMART information on the drive. Fortunately the developers had already included the smartmontools package on the drive so it was a quite easy process.

Firstly you will need to SSH into the drive (you may need to turn it on using the web interface).

Once your in all you need is the following command which will give you all the SMART information for the drive.

$ smartctl -a -d ata /dev/sda

Example:
# smartctl -a -d ata /dev/sda
smartctl version 5.38 [arm-unknown-linux-gnu] Copyright (C) 2002-8 Bruce Allen
Home page is http://smartmontools.sourceforge.net/


=== START OF INFORMATION SECTION ===
Device Model:     WDC WD10EAVS-00D7B1
Serial Number:    -- Removed --
Firmware Version: 01.01A01
User Capacity:    1,000,204,886,016 bytes
Device is:        Not in smartctl database [for details use: -P showall]
ATA Version is:   8
ATA Standard is:  Exact ATA specification draft version not indicated
Local Time is:    Wed Sep  1 10:15:56 2010 EST
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:          (22800) 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:      ( 255) minutes.
Conveyance self-test routine
recommended polling time:      (   5) minutes.
SCT capabilities:            (0x303f)    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   163   160   021    Pre-fail  Always       -       6825
  4 Start_Stop_Count        0x0032   098   098   000    Old_age   Always       -       2040
  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   098   098   000    Old_age   Always       -       1747
 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       -       757
192 Power-Off_Retract_Count 0x0032   200   200   000    Old_age   Always       -       4
193 Load_Cycle_Count        0x0032   200   200   000    Old_age   Always       -       2040
194 Temperature_Celsius     0x0022   119   096   000    Old_age   Always       -       31
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   100   253   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x0032   200   200   000    Old_age   Always       -       0
200 Multi_Zone_Error_Rate   0x0008   100   253   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.

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