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(Solved) UDMA_CRC_Error_Count


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While adding a fairly used drive to my array I noticed that in the smart report it shows:

 

199 UDMA_CRC_Error_Count    0x0032   200   200   000    Old_age   Always       -       175

 

I have been using this drive for a good while, 2+ years, on a Windows machine without any issues. Should I be worried by this value? It did pass the preclear script without incident. I will paste the full smart report: If I had noticed this before adding it to the array I would have done another round or two of pre-clear script, but alas I didn't notice it until Unmenu flagged it after i added it to the array. Unmenu also flagged load_cycle_count=51393, but I figured that is simply because it is an older drive that has been running in a machine 24/7 (the hd was allowed to spin down when idle).

 

_________________________________________________________________________

 

smartctl -a -d ata /dev/sde (disk3)

smartctl 5.39.1 2010-01-28 r3054 [i486-slackware-linux-gnu] (local build)

Copyright © 2002-10 by Bruce Allen, http://smartmontools.sourceforge.net

 

=== START OF INFORMATION SECTION ===

Model Family:     Western Digital Caviar Green family

Device Model:     WDC WD20EADS-00S2B0

Serial Number:    WD-WCAVY4492513

Firmware Version: 01.00A01

User Capacity:    2,000,398,934,016 bytes

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:    Tue Aug  9 22:20:02 2011 EDT

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:  (0x82) Offline data collection activity

was completed without error.

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: (42000) 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:       (0x3037) 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   145   142   021    Pre-fail  Always       -       9741

 4 Start_Stop_Count        0x0032   100   100   000    Old_age   Always       -       934

 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   090   090   000    Old_age   Always       -       7811

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       -       154

192 Power-Off_Retract_Count 0x0032   200   200   000    Old_age   Always       -       31

193 Load_Cycle_Count        0x0032   183   183   000    Old_age   Always       -       51393

194 Temperature_Celsius     0x0022   121   101   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   200   200   000    Old_age   Offline      -       0

199 UDMA_CRC_Error_Count    0x0032   200   200   000    Old_age   Always       -       175

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%        33         -

# 2  Short offline       Completed without error       00%        11         -

 

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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The normalized value is 200.  The failure threshold is 000.  many Raw values have meaning ONLY to the manufacturer, with a few exceptions temperature, re-allocated sectors, sectors pending re-allocation, power on hours).

 

You disk is fine.

 

 

 

 

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