[smartmontools-support]IDNF errors, Reallocated_event_count nonzero, but other error fields still zero

[Frode E. M. <fr...@fr...>]

Hi. Just recently, during very heavy disk activity, I noticed two events 
in the winxp event log claiming "The device, \Device\Ide\IdePort0, did 
not respond within the timeout period.". There is also an event from 
yesterday claiming "An error was detected on device \Device\Harddisk0\D 
during a paging operation." This laptop drive is 2-3 months old and was 
replaced because the original drive became faulty.

Booting into linux and running smartctl listed two IDNF error events. 
One of these is for LBA "0x0000003f", which I think is very strange - I 
thought the first 63 sectors were reserved for the MBR/partition table 
and cannot fanthom why winxp would want to write there.

I'm also puzzled by the "Reallocated event count" being 18 (what does 
this attribute really mean?) while there is 0 raw read errors, 0 
reallocated sectors, 0 current_pending_sectors, 0 offline uncorrectable 
and 0 udma crc errors. Did the drive really reallocate any sectors?

(I later discovered smartctl was ported to cygwin, running that version 
provides the same results, except it appears the drive is now in the 
smartctl database (v5.33 vs v5.32)

Performing a short self-test PASSES, and trying to read sector 63 by 
doing "hexdump -C /dev/hda" for a while seems to work perfectly.

Is this a cause for concern?

Please cc: me on any replies as I am not subscribed to the list.


Here's the output from running smartctl under linux (Debian unstable)

smartctl version 5.32 Copyright (C) 2002-4 Bruce Allen
Home page is http://smartmontools.sourceforge.net/

=== START OF INFORMATION SECTION ===
Device Model:     HTS548060M9AT00
Serial Number:    <removed>
Firmware Version: MGBOA53A
Device is:        Not in smartctl database [for details use: -P showall]
ATA Version is:   6
ATA Standard is:  ATA/ATAPI-6 T13 1410D revision 3a
Local Time is:    Sun Oct 24 22:47:49 2004 CEST
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:  (0x00)	Offline data collection activity
					was never started.
					Auto Offline Data Collection: Disabled.
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: 		 ( 645) 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: 	 (   2) minutes.
Extended self-test routine
recommended polling time: 	 (  46) 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   100   100   062    Pre-fail 
Always       -       0
   2 Throughput_Performance  0x0005   100   100   040    Pre-fail 
Offline      -       0
   3 Spin_Up_Time            0x0007   200   200   033    Pre-fail 
Always       -       2
   4 Start_Stop_Count        0x0012   100   100   000    Old_age 
Always       -       67
   5 Reallocated_Sector_Ct   0x0033   100   100   005    Pre-fail 
Always       -       0
   7 Seek_Error_Rate         0x000b   100   100   067    Pre-fail 
Always       -       0
   8 Seek_Time_Performance   0x0005   100   100   040    Pre-fail 
Offline      -       0
   9 Power_On_Hours          0x0012   100   100   000    Old_age 
Always       -       22
  10 Spin_Retry_Count        0x0013   100   100   060    Pre-fail 
Always       -       0
  12 Power_Cycle_Count       0x0032   100   100   000    Old_age 
Always       -       59
191 G-Sense_Error_Rate      0x000a   081   081   000    Old_age   Always 
       -       6357592
192 Power-Off_Retract_Count 0x0032   100   100   000    Old_age   Always 
       -       3
193 Load_Cycle_Count        0x0012   099   099   000    Old_age   Always 
       -       16583
194 Temperature_Celsius     0x0002   125   125   000    Old_age   Always 
       -       44 (Lifetime Min/Max 14/52)
196 Reallocated_Event_Count 0x0032   100   100   000    Old_age   Always 
       -       18
197 Current_Pending_Sector  0x0022   100   100   000    Old_age   Always 
       -       0
198 Offline_Uncorrectable   0x0008   100   100   000    Old_age 
Offline      -       0
199 UDMA_CRC_Error_Count    0x000a   200   200   000    Old_age   Always 
       -       0

SMART Error Log Version: 1
ATA Error Count: 2
	CR = Command Register [HEX]
	FR = Features Register [HEX]
	SC = Sector Count Register [HEX]
	SN = Sector Number Register [HEX]
	CL = Cylinder Low Register [HEX]
	CH = Cylinder High Register [HEX]
	DH = Device/Head Register [HEX]
	DC = Device Command Register [HEX]
	ER = Error register [HEX]
	ST = Status register [HEX]
Powered_Up_Time is measured from power on, and printed as
DDd+hh:mm:SS.sss where DD=days, hh=hours, mm=minutes,
SS=sec, and sss=millisec. It "wraps" after 49.710 days.

Error 2 occurred at disk power-on lifetime: 673 hours (28 days + 1 hours)
   When the command that caused the error occurred, the device was 
active or idle.

   After command completion occurred, registers were:
   ER ST SC SN CL CH DH
   -- -- -- -- -- -- --
   10 51 02 3f 00 00 e0  Error: IDNF at LBA = 0x0000003f = 63

   Commands leading to the command that caused the error were:
   CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
   -- -- -- -- -- -- -- --  ----------------  --------------------
   ca d0 02 3f 00 00 e0 00      03:06:52.600  WRITE DMA
   ca d0 20 35 cb 6f e3 00      03:06:52.500  WRITE DMA
   ca d0 20 c5 51 67 e3 00      03:06:52.000  WRITE DMA
   c8 d0 20 75 da ba e3 00      03:06:51.700  READ DMA
   c8 d0 20 15 de e6 e3 00      03:06:51.500  READ DMA

Error 1 occurred at disk power-on lifetime: 673 hours (28 days + 1 hours)
   When the command that caused the error occurred, the device was 
active or idle.

   After command completion occurred, registers were:
   ER ST SC SN CL CH DH
   -- -- -- -- -- -- --
   10 51 08 6d 97 12 e3  Error: IDNF at LBA = 0x0312976d = 51550061

   Commands leading to the command that caused the error were:
   CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
   -- -- -- -- -- -- -- --  ----------------  --------------------
   ca 00 08 6d 97 12 e3 00      03:00:20.000  WRITE DMA
   c8 00 20 75 37 b9 e3 00      03:00:19.900  READ DMA
   c8 00 20 f5 56 d2 e3 00      03:00:19.800  READ DMA
   c8 00 20 a5 95 e3 e3 00      03:00:19.600  READ DMA
   c8 00 20 35 08 e1 e3 00      03:00:19.600  READ DMA

SMART Self-test log structure revision number 1
No self-tests have been logged.  [To run self-tests, use: smartctl -t]


Warning! SMART Selective Self-Test Log Structure error: invalid SMART 
checksum.
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.