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Drive Power on Hours


TODDLT

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Sorry if you already read this, but I threw it in the wrong forum.  I have requested the other be deleted.

 

For a non-enterprise drive, how long would you trust it?  years? power on hours?

 

I am replacing a 2 TB drive with a 3TB drive due to space and use.  I am contemplating re-using the 2TB, but it has 12,500 power on hours and could be 5 years old or more.  Would you trust it or just move on? 

 

Here is the smart status report.

 

smartctl -a -d ata /dev/sdk

smartctl 5.40 2010-10-16 r3189 [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 (Adv. Format) family

Device Model:    WDC WD20EARS-00MVWB0

Serial Number:    WD-WMAZA1640390

Firmware Version: 51.0AB51

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:    Wed Nov 13 21:37:48 2013 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:  (0x85)  Offline data collection activity

              was aborted by an interrupting command from host.

              Auto Offline Data Collection: Enabled.

Self-test execution status:      ( 243)  Self-test routine in progress...

              30% of test remaining.

Total time to complete Offline

data collection:        (37680) 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:          (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      -      5

  3 Spin_Up_Time            0x0027  184  165  021    Pre-fail  Always      -      5766

  4 Start_Stop_Count        0x0032  100  100  000    Old_age  Always      -      708

  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  083  083  000    Old_age  Always      -      12493

10 Spin_Retry_Count        0x0032  100  100  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      -      90

192 Power-Off_Retract_Count 0x0032  200  200  000    Old_age  Always      -      23

193 Load_Cycle_Count        0x0032  184  184  000    Old_age  Always      -      49467

194 Temperature_Celsius    0x0022  125  113  000    Old_age  Always      -      25

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      -      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  Short offline      Completed without error      00%      1930        -

 

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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I don't think a WD20EARS drive could be more than 5 years old. I think they were just coming out 3 years ago. I bought 1 WD20EARS and 1 WD20EADS in Oct 2010.

 

I have 2 WD20EARS drives that have just over 16000 hours.

 

You can check the manufacturer date by removing the drive from the server and checking the label. You can also enter the drive's serial number in the warranty check on Western Digital's site: http://websupport.wdc.com/warranty/warrantycheck.asp?custtype=end which would tell you the warranty end date and give an idea of it's manufacturer date.

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Depends on your re-use situation.

 

If you are moving it from parity to data drive, it should be fine for possible a long time.

If you are now going to use it in a workstation, in a different orientation, different temperature stability, you might find it failing quickly.

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