[mythtv-users] Slight OT: Possibly failing disk, bad sector warnings

[Ryan Steffes]

I just recently started playing with smartctl and discovered one of my disks
seems to be having problems:

Oct 5 10:52:27 mythtv smartd[13917]: Device: /dev/hdb, 4 Currently
unreadable (pending) sectors
Oct 5 10:52:27 mythtv smartd[13917]: Device: /dev/hdb, 4 Offline
uncorrectable sectors

I'm trying to figure out exactly what this means. I think as far as the
report goes, it means four sectors have bad blocks and the disk wants to
relocate them, but hasn't yet. My question is what I need to do about it. Is
it time to panic and dump the drive? It's not a particularly old drive, but
I have no idea what the warrenty on it would be. I bought it OEM from
newegg. If it's just a matter of relocating data, what ought I do about it?

badblocks gave a dismaying list, but I don't know exactly what to do with
that data. The blocks are somewhere in my LVM partition. Is this a write off
the sectors kind of problem, or a pray and order a new disc kind of problem?

smartctl reports overall health is still good.


=== START OF INFORMATION SECTION ===
Device Model: ST3250823A
Serial Number: 5ND064BR
Firmware Version: 3.02
User Capacity: 250,059,350,016 bytes
Device is: Not in smartctl database [for details use: -P showall]
ATA Version is: 7
ATA Standard is: Exact ATA specification draft version not indicated
Local Time is: Wed Oct 5 14:41:36 2005 EDT
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: ( 249) Self-test routine in progress...
90% of test remaining.
Total time to complete Offline
data collection: ( 430) seconds.
Offline data collection
capabilities: (0x5b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
No 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: ( 84) minutes.

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 057 052 006 Pre-fail Always - 165667777
3 Spin_Up_Time 0x0003 099 098 000 Pre-fail Always - 0
4 Start_Stop_Count 0x0032 100 100 020 Old_age Always - 49
5 Reallocated_Sector_Ct 0x0033 100 100 036 Pre-fail Always - 0
7 Seek_Error_Rate 0x000f 039 034 030 Pre-fail Always - 44229665938597
9 Power_On_Hours 0x0032 099 099 000 Old_age Always - 1519
10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0
12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 62
194 Temperature_Celsius 0x0022 046 060 000 Old_age Always - 46 (Lifetime
Min/Max 0 /23)
195 Hardware_ECC_Recovered 0x001a 057 051 000 Old_age Always - 165667777
197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always - 4
198 Offline_Uncorrectable 0x0010 100 100 000 Old_age Offline - 4
199 UDMA_CRC_Error_Count 0x003e 200 200 000 Old_age Always - 0
200 Multi_Zone_Error_Rate 0x0000 100 253 000 Old_age Offline - 0
202 TA_Increase_Count 0x0032 100 253 000 Old_age Always - 0

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 Short offline Completed without error 00% 1517 -
# 2 Extended offline Completed: read failure 90% 1414 29360139
# 3 Extended offline Completed: read failure 90% 1249 29360139
# 4 Extended offline Completed: read failure 90% 1084 29360139
# 5 Extended offline Self-test routine in progress 90% 1519 -

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
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