[smartmontools-support]Help interpreting results

[Stephen R. N. <sr...@co...>]

I have a group of identical machines. On one of them the self tests
fail:

smartctl -l selftest /dev/hda
smartctl version 5.25 Copyright (C) 2002-3 Bruce Allen
Home page is http://smartmontools.sourceforge.net/
=20
=3D=3D=3D START OF READ SMART DATA SECTION =3D=3D=3D
SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining=20
LifeTime(hours)  LBA_of_first_error
# 1  Short offline       Completed: electrical failure 90%   =20
12447         0x01d93468
# 2  Extended offline    Completed: read failure       90%   =20
12447         0x00072451
# 3  Conveyance offline  Fatal or unknown error        00%   =20
12447         -
# 4  Short offline       Completed: electrical failure 90%   =20
12447         0x01d60fc0
=20
On the other machines, they go fine.

-a gives:

ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE    =20
UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x000f   081   074   034    Pre-fail=20
Always       -       48678064
  3 Spin_Up_Time            0x0003   070   070   000    Pre-fail=20
Always       -       0
  4 Start_Stop_Count        0x0032   100   100   020    Old_age =20
Always       -       2
  5 Reallocated_Sector_Ct   0x0033   100   100   036    Pre-fail=20
Always       -       3
  7 Seek_Error_Rate         0x000f   081   060   030    Pre-fail=20
Always       -       121179747
  9 Power_On_Hours          0x0032   086   086   000    Old_age =20
Always       -       12447
 10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail=20
Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   020    Old_age =20
Always       -       80
194 Temperature_Celsius     0x0022   033   050   000    Old_age =20
Always       -       33
195 Hardware_ECC_Recovered  0x001a   081   074   000    Old_age =20
Always       -       48678064
197 Current_Pending_Sector  0x0012   100   100   000    Old_age =20
Always       -       0
198 Offline_Uncorrectable   0x0010   100   100   000    Old_age =20
Offline      -       0
199 UDMA_CRC_Error_Count    0x003e   200   200   000    Old_age =20
Always       -       0
200 Multi_Zone_Error_Rate   0x0000   100   253   000    Old_age =20
Offline      -       0
202 TA_Increase_Count       0x0032   005   158   000    Old_age =20
Always       -       95
=20
The stand-out value there is TA_Increase_Count, which is 95 vs 0 on the
other machines (if I understand the numbers correctly).

Firstly, is this bad (it looks bad - the self test results look very
bad).

Secondly, is there a guide to interpreting these values somewhere? I'm
not even sure if higher or lower is bad in the VALUE WORST and THRESH
columns.

Thanks,
	Stephen