DaPlumber
Patron
- Joined
- May 21, 2014
- Messages
- 246
All,
I recently got the following after a scrub:
Because The ZFS error correction is doing it's job and I don't expect 4TB WD RED disks to be perfect forever (or even a few months in this case), I don't think the number of errors is high enough to warrant concern on a home system. I'll obviously keep an eye on the disk stats, here are the smartctl attributes for the two disks:
and
So, comments?
I recently got the following after a scrub:
Code:
pool: tankname state: ONLINE status: One or more devices has experienced an unrecoverable error. An attempt was made to correct the error. Applications are unaffected. action: Determine if the device needs to be replaced, and clear the errors using 'zpool clear' or replace the device with 'zpool replace'. see: http://illumos.org/msg/ZFS-8000-9P scan: scrub repaired 576K in 17h13m with 0 errors on Mon Nov 3 17:14:04 2014 config: NAME STATE READ WRITE CKSUM tankname ONLINE 0 0 0 raidz2-0 ONLINE 0 0 0 gptid/926fbb61-e5d6-11e3-985e-d050990a66d5 ONLINE 0 0 0 gptid/9350f34f-e5d6-11e3-985e-d050990a66d5 ONLINE 0 0 0 gptid/9430b075-e5d6-11e3-985e-d050990a66d5 ONLINE 0 0 3 gptid/9514062d-e5d6-11e3-985e-d050990a66d5 ONLINE 0 0 6 errors: No known data errors
Because The ZFS error correction is doing it's job and I don't expect 4TB WD RED disks to be perfect forever (or even a few months in this case), I don't think the number of errors is high enough to warrant concern on a home system. I'll obviously keep an eye on the disk stats, here are the smartctl attributes for the two disks:
Code:
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 179 179 021 Pre-fail Always - 8033 4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 38 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 095 095 000 Old_age Always - 4084 10 Spin_Retry_Count 0x0032 100 253 000 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 - 37 192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 23 193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 94 194 Temperature_Celsius 0x0022 115 111 000 Old_age Always - 37 196 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
and
Code:
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 - 1 3 Spin_Up_Time 0x0027 181 181 021 Pre-fail Always - 7933 4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 38 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 095 095 000 Old_age Always - 4084 10 Spin_Retry_Count 0x0032 100 253 000 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 - 37 192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 23 193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 94 194 Temperature_Celsius 0x0022 115 111 000 Old_age Always - 37 196 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
So, comments?