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Old 05-10-2010, 11:41 PM
"nate"
 
Default tracing the source of a sector error from smartd

I'm not used to using smartd, but have a new set of systems
that don't have any sort of RAID on them, so I enabled
smartd (18 systems 4 SATA drives each).

Running CentOS 5.4 64-bit ..

One of them has emailed me twice(despite it saying it
would only email me once) saying it has

1 Offline uncorrectable sectors

But when I try to find more information, smartctl seems to
think everything is fine.

=== START OF INFORMATION SECTION ===
Device Model: WDC WD1002FBYS-18W8B0
Serial Number: WD-WMATV5930306
Firmware Version: 03.00C09
User Capacity: 1,000,204,886,016 bytes
Device is: Not in smartctl database [for details use: -P showall]
ATA Version is: 8
ATA Standard is: Exact ATA specification draft version not indicated
Local Time is: Mon May 10 16:36:22 2010 PDT
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: (18000) 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: ( 208) minutes.
Conveyance self-test routine
recommended polling time: ( 5) minutes.
SCT capabilities: (0x303f) 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 253 253 021 Pre-fail Always
- 1091
4 Start_Stop_Count 0x0032 100 100 000 Old_age Always
- 15
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 100 100 000 Old_age Always
- 523
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
- 14
192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always
- 13
193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always
- 1
194 Temperature_Celsius 0x0022 117 109 000 Old_age Always
- 33
196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always
- 0
197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always
- 1
198 Offline_Uncorrectable 0x0030 200 200 000 Old_age Offline
- 1
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
- 1

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 Extended offline Completed without error 00% 68 -
# 2 Short offline Completed without error 00% 60 -

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.

---

/var/log/messages has tons of entries that say

Device: /dev/sdc, 1 Currently unreadable (pending) sectors


Since it's only 1 disk out of 72 I suspect it's the disk at fault
rather than something with smartd..

Any ideas?

thanks

nate

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