Hi there!
I was getting alerts from smart telling me that /dev/ada1 has 8 bad sectors, so I ran an extended smart test (smartctl -t long /dev/ada1) in order to find the LBA of the bad sectors. But the result of the extended test came back as follows:
You can see that there are 8 sectors marked as "Offline_Uncorrectable" / "Current_Pending_Sector" but none of the extended offline tests shows "LBA_of_first_error". How is that possible?
I was getting alerts from smart telling me that /dev/ada1 has 8 bad sectors, so I ran an extended smart test (smartctl -t long /dev/ada1) in order to find the LBA of the bad sectors. But the result of the extended test came back as follows:
Code:
[root@Schnigges-NAS] ~# smartctl -a /dev/ada1
ada1% ada1p1% ada1p1.eli% ada1p2%
[root@Schnigges-NAS] ~# smartctl -a /dev/ada1
smartctl 6.2 2013-07-26 r3841 [FreeBSD 9.2-RELEASE amd64] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: Seagate Barracuda Green (AF)
Device Model: ST2000DL003-9VT166
Serial Number: 6YD122ZZ
LU WWN Device Id: 5 000c50 03e6e6d84
Firmware Version: CC3C
User Capacity: 2,000,398,934,016 bytes [2.00 TB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Rotation Rate: 5900 rpm
Device is: In smartctl database [for details use: -P show]
ATA Version is: ATA8-ACS T13/1699-D revision 4
SATA Version is: SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Wed Jan 29 18:45:40 2014 CET
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
See vendor-specific Attribute list for marginal Attributes.
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: ( 612) 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: ( 1) minutes.
Extended self-test routine
recommended polling time: ( 335) minutes.
Conveyance self-test routine
recommended polling time: ( 2) minutes.
SCT capabilities: (0x30b7) SCT Status supported.
SCT Feature Control supported.
SCT Data Table supported.
SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x000f 117 099 006 Pre-fail Always - 155900656
3 Spin_Up_Time 0x0003 092 092 000 Pre-fail Always - 0
4 Start_Stop_Count 0x0032 100 100 020 Old_age Always - 128
5 Reallocated_Sector_Ct 0x0033 100 100 036 Pre-fail Always - 0
7 Seek_Error_Rate 0x000f 072 060 030 Pre-fail Always - 38811203555
9 Power_On_Hours 0x0032 079 079 000 Old_age Always - 18945
10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0
12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 128
183 Runtime_Bad_Block 0x0032 098 098 000 Old_age Always - 2
184 End-to-End_Error 0x0032 100 100 099 Old_age Always - 0
187 Reported_Uncorrect 0x0032 069 069 000 Old_age Always - 31
188 Command_Timeout 0x0032 100 095 000 Old_age Always - 8590065735
189 High_Fly_Writes 0x003a 100 100 000 Old_age Always - 0
190 Airflow_Temperature_Cel 0x0022 051 044 045 Old_age Always In_the_past 49 (0 66 52 42 0)
191 G-Sense_Error_Rate 0x0032 100 100 000 Old_age Always - 0
192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 73
193 Load_Cycle_Count 0x0032 100 100 000 Old_age Always - 128
194 Temperature_Celsius 0x0022 049 056 000 Old_age Always - 49 (0 17 0 0 0)
195 Hardware_ECC_Recovered 0x001a 027 003 000 Old_age Always - 155900656
197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always - 8
198 Offline_Uncorrectable 0x0010 100 100 000 Old_age Offline - 8
199 UDMA_CRC_Error_Count 0x003e 200 200 000 Old_age Always - 0
240 Head_Flying_Hours 0x0000 100 253 000 Old_age Offline - 11849814788612
241 Total_LBAs_Written 0x0000 100 253 000 Old_age Offline - 1220083627
242 Total_LBAs_Read 0x0000 100 253 000 Old_age Offline - 3814456868
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% 18930 -
# 2 Extended offline Completed without error 00% 18907 -
# 3 Extended offline Aborted by host 90% 18637 -
# 4 Short offline Completed without error 00% 5583 -
# 5 Short offline Completed without error 00% 4874 -
# 6 Short offline Completed without error 00% 4140 -
# 7 Short offline Completed without error 00% 2963 -
# 8 Short offline Completed without error 00% 2267 -
# 9 Extended offline Completed without error 00% 854 -
#10 Extended offline Completed without error 00% 167 -
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.
You can see that there are 8 sectors marked as "Offline_Uncorrectable" / "Current_Pending_Sector" but none of the extended offline tests shows "LBA_of_first_error". How is that possible?
