WDC WD10EARS-00MVWB0 - przyczyna zamulania i błąd odczytu 90% w SMART

witam

Szukam przyczyn dziwnego 'zamulania' mojego dysku. Może to jakaś paranoja ale chyba jest coś z nim nie tak
Kupiłem go kilka miesięcy temu i niestety o pewnego czasu przy próbie przetestowania testem smartct mam komunikat:
Completed: read failure 90%.

Z góry dziękuję za wszelkie sugestie.

Poniżej zrzut z:

Device Model: WDC WD10EARS-00MVWB0
Serial Number: WD-WMAZA0685274
Firmware Version: 51.0AB51
User Capacity: 1,000,204,886,016 bytes
Device is: In smartctl database [for details use: -P show]
ATA Version is: 8
ATA Standard is: Exact ATA specification draft version not indicated
Local Time is: Sun Feb 19 15:53:57 2012 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

General SMART Values:
Offline data collection status: (0x84) Offline data collection activity
was suspended by an interrupting command from host.
Auto Offline Data Collection: Enabled.
Self-test execution status: ( 121) The previous self-test completed having
the read element of the test failed.
Total time to complete Offline
data collection: (25260) 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: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 246) minutes.
Conveyance self-test routine
recommended polling time: ( 5) minutes.
SCT capabilities: (0x3035) SCT Status supported.
SCT Feature Control supported.
SCT Data Table supported.

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 0x002f 200 200 051 Pre-fail Always - 0
3 Spin_Up_Time 0x0027 165 163 021 Pre-fail Always - 6716
4 Start_Stop_Count 0x0032 099 099 000 Old_age Always - 1074
5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0
7 Seek_Error_Rate 0x002e 200 200 000 Old_age Always - 0
9 Power_On_Hours 0x0032 094 094 000 Old_age Always - 4477
10 Spin_Retry_Count 0x0032 100 100 000 Old_age Always - 0
11 Calibration_Retry_Count 0x0032 100 100 000 Old_age Always - 0
12 Power_Cycle_Count 0x0032 099 099 000 Old_age Always - 1056
192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 49
193 Load_Cycle_Count 0x0032 119 119 000 Old_age Always - 243565
194 Temperature_Celsius 0x0022 114 100 000 Old_age Always - 36
196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0
197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 114
198 Offline_Uncorrectable 0x0030 200 200 000 Old_age Offline - 79
199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 0
200 Multi_Zone_Error_Rate 0x0008 200 199 000 Old_age Offline - 115

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 Selective offline Completed: read failure 90% 4476 1186074684
# 2 Selective offline Completed: read failure 90% 4475 1186074684
# 3 Selective offline Aborted by host 90% 4475 -
# 4 Selective offline Aborted by host 90% 4475 -
# 5 Selective offline Aborted by host 90% 4475 -
# 6 Selective offline Completed: read failure 90% 4475 1186074684
# 7 Selective offline Completed: read failure 90% 4475 1186074680
# 8 Selective offline Completed: read failure 90% 4475 1186074684
# 9 Extended offline Completed: read failure 90% 4399 1186074680
#10 Short offline Completed without error 00% 162 -

SMART Selective self-test log data structure revision number 1
SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS
1 1186044180 1186045379 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.

Do wykonania:
https://www.elektroda.pl/rtvforum/topic1550200.html

Następnie zamieść nowy SMART.

na razie nie mam możliwości backupu tej ilości danych
ale wykonałem procedurę (Reiserfs examlpe) kroki od 1-5 z :
Link
Później celem sprawdzenia przy wykonaniu kroku 7 (reiserfsck) niestety wywala mi sie i pisze o błędzie odczytu input/output error i podaje już inną lokalizację (dlatego podejrzewam że tych badblocków jest więcej).
Po moich próbach zmienił się też wynik smarta dla:

197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 118

Cytat:

debugreiserfs -1 80033033 /dev/sda6

mowi ze:
debugreiserfs 3.6.21 (2009 www.namesys.com)

80033033 is free in ondisk bitmap

The problem has occurred looks like a hardware problem. If you have
bad blocks, we advise you to get a new hard drive, because once you
get one bad block that the disk drive internals cannot hide from
your sight,the chances of getting more are generally said to become
much higher (precise statistics are unknown to us), and this disk
drive is probably not expensive enough for you to you to risk your
time and data on it. If you don't want to follow that follow that
advice then if you have just a few bad blocks, try writing to the
bad blocks and see if the drive remaps the bad blocks (that means
it takes a block it has in reserve and allocates it for use for
of that block number). If it cannot remap the block, use badblock
option (-B) with reiserfs utils to handle this block correctly.

bread: Cannot read the block (80033033): (Input/output error).

Przerwane

Dysk jest podejrzany o uszkodzenie. Dopóki nie zrobisz procedury na którą Cię skierował kolega wyżej (inaczej - dopóki nie będziesz miał miejsca na backup) nie męcz tego dysku (czyli nie używaj, co dopiero mówić o testowaniu), jeżeli masz na celu bezpieczeństwo znajdujących się na nim danych.