Re: detecting/correcting _slightly_ flaky disks

[Michael Stumpf <mjstumpf@pobox.com>]

This is the drive I think is most suspect.  What isn't obvious, because 
it isn't listed in the self test log, is between #1 and #2 there was an 
aborted, hung test.   The #4 short test that was aborted was also a hung 
test that I eventually, manually aborted--heard clicking from drives at 
that time, can't swear it was from this drive though.

Not sure I fully understand the nuances of this report.  If anything 
jumps out at you, I'd appreciate a tip on how you read it.  (to me, 
looks mostly healthy)

>
>
> Also, what does smartctl -a /dev/hda for each of your drives show?
>
> Justin.
>
>
=== START OF INFORMATION SECTION ===
Model Family:     Western Digital Caviar SE family
Device Model:     WDC WD1200JB-75CRA0
Serial Number:    WD-WMA8C3115683
Firmware Version: 16.06V76
User Capacity:    120,000,000,000 bytes
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   5
ATA Standard is:  Exact ATA specification draft version not indicated
Local Time is:    Mon Mar 05 10:52:05 2007 CAST
SMART support is: Available - device has SMART capability.
                  Enabled status cached by OS, trying SMART RETURN 
STATUS cmd.
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:  (0x85) Offline data collection activity
                                        was aborted by an interrupting 
command from host.
                                        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:                 (4680) seconds.
Offline data collection
capabilities:                    (0x3b) 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.
                                        No 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.
                                        No General Purpose Logging support.
Short self-test routine
recommended polling time:        (   2) minutes.
Extended self-test routine
recommended polling time:        (  87) minutes.
Conveyance self-test routine
recommended polling time:        (   5) minutes.

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     0x000b   200   200   051    Pre-fail  
Always       -       0
  3 Spin_Up_Time            0x0007   146   098   021    Pre-fail  
Always       -       3491
  4 Start_Stop_Count        0x0032   100   100   040    Old_age   
Always       -       399
  5 Reallocated_Sector_Ct   0x0033   200   200   140    Pre-fail  
Always       -       0
  7 Seek_Error_Rate         0x000b   200   200   051    Pre-fail  
Always       -       0
  9 Power_On_Hours          0x0032   070   070   000    Old_age   
Always       -       22147
 10 Spin_Retry_Count        0x0013   100   100   051    Pre-fail  
Always       -       0
 11 Calibration_Retry_Count 0x0013   100   100   051    Pre-fail  
Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   
Always       -       397
196 Reallocated_Event_Count 0x0032   200   200   000    Old_age   
Always       -       0
197 Current_Pending_Sector  0x0012   200   200   000    Old_age   
Always       -       0
198 Offline_Uncorrectable   0x0012   200   200   000    Old_age   
Always       -       0
199 UDMA_CRC_Error_Count    0x000a   200   253   000    Old_age   
Always       -       0
200 Multi_Zone_Error_Rate   0x0009   200   200   051    Pre-fail  
Offline      -       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  Extended offline    Completed without error       00%       
299         -
# 2  Extended offline    Interrupted (host reset)      50%       
279         -
# 3  Short offline       Completed without error       00%       
279         -
# 4  Short offline       Aborted by host               80%       
279         -
# 5  Extended offline    Completed without error       00%       
102         -
# 6  Extended offline    Completed without error       00%      
1026         -
# 7  Extended offline    Completed without error       00%       
859         -
# 8  Extended offline    Completed without error       00%       
692         -
# 9  Extended offline    Completed without error       00%       
525         -
#10  Extended offline    Completed without error       00%       
380         -
#11  Extended offline    Completed without error       00%       
370         -

Device does not support Selective Self Tests/Logging