[mythtv-users] warning for anyone with western digital green drives

James Linder jam at tigger.ws
Sat Jan 7 01:50:36 UTC 2012


On 07/01/2012, at 1:53 AM, mythtv-users-request at mythtv.org wrote:

>> The second drive, a WD10EARS-00Y5B1 with 512 byte sectors, is used as the boot
>> drive and contains the database. The drive has been in service about 30 months
>> and shows a Load Cycle Count of 1636408. This one seems too large, particularly
>> if the lifetime value is really 300K.
> 
> No, from what I've read, that seams about right. Min was over 500K in
> 18 months, but I read of people with 600k top 800k in 12 months.
> 
> 300k isn't the drop dead value, but it's all that the manufacturer
> says it is designed for. You may be fine going way beyond that (as a
> lot of people are), but unless absolutely necessary, it's probably a
> good idea to try an keep it operating within spec if possible.

Ummm confused ...

=== START OF INFORMATION SECTION ===
Model Family:     Western Digital Caviar Green family
Device Model:     WDC WD10EADS-00L5B1
Serial Number:    WD-WCAU48131862
Firmware Version: 01.01A01
[snip]

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   162   160   021    Pre-fail  Always       -       6900
  4 Start_Stop_Count        0x0032   100   100   000    Old_age   Always       -       178
  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   070   070   000    Old_age   Always       -       22305
 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       -       176
192 Power-Off_Retract_Count 0x0032   200   200   000    Old_age   Always       -       16
193 Load_Cycle_Count        0x0032   200   200   000    Old_age   Always       -       178
194 Temperature_Celsius     0x0022   107   099   000    Old_age   Always       -       43
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   200   200   000    Old_age   Offline      -       0

20000 hours and a count of 178!

James



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