On Tue, 9 Mar 2010, Tejun Heo wrote:
How fast does it increase? ie. counts / hour.
I can confirm this, and it seems to differ between different firmware
versions and WD20-models:
# smartctl -a /dev/sdc | egrep
'Power_On_Hours|Load_Cycle_Count|Device|Firmware'
Device Model: WDC WD20EADS-32S2B0
Firmware Version: 01.00A01
Device is: Not in smartctl database [for details use: -P showall]
9 Power_On_Hours 0x0032 099 099 000 Old_age Always - 905
193 Load_Cycle_Count 0x0032 193 193 000 Old_age Always - 22562
# smartctl -a /dev/sdd | egrep
'Power_On_Hours|Load_Cycle_Count|Device|Firmware'
Device Model: WDC WD20EADS-32S2B0
Firmware Version: 01.00A01
Device is: Not in smartctl database [for details use: -P showall]
9 Power_On_Hours 0x0032 099 099 000 Old_age Always - 919
193 Load_Cycle_Count 0x0032 193 193 000 Old_age Always - 22520
# smartctl -a /dev/sde | egrep 'Power_On_Hours|Load_Cycle_Count|Device|Firmware'
Device Model: WDC WD20EADS-00R6B0
Firmware Version: 01.00A01
Device is: Not in smartctl database [for details use: -P showall]
9 Power_On_Hours 0x0032 089 089 000 Old_age Always - 8581
193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 45
# smartctl -a /dev/sdf | egrep 'Power_On_Hours|Load_Cycle_Count|Device|Firmware'
Device Model: WDC WD20EADS-00R6B0
Firmware Version: 01.00A01
Device is: Not in smartctl database [for details use: -P showall]
9 Power_On_Hours 0x0032 092 092 000 Old_age Always - 5849
193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 30
# smartctl -a /dev/sdg | egrep 'Power_On_Hours|Load_Cycle_Count|Device|Firmware'
Device Model: WDC WD20EARS-00S8B1
Firmware Version: 80.00A80
Device is: Not in smartctl database [for details use: -P showall]
9 Power_On_Hours 0x0032 099 099 000 Old_age Always - 760
193 Load_Cycle_Count 0x0032 195 195 000 Old_age Always - 16615
--
Mikael Abrahamsson email: swmike@xxxxxxxxx
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