sata gondok (?)

hahó

egy ideje azt csinálja a(z amúgy egy hónapos) gépem, hogy minden alkalmazás lemerevedik, a hdd-led világít, az egér mozog, de a kompiz sem nagyon reagál. (gnome-terminal működik és fájlokat is tudok olvasni a diszkről, de az auto-completition már nem pl.)
ezt kb. 30mp-ig teszi, majd ez jelenik meg a rendszernaplóban:

Jan  2 19:45:23 calypso kernel: [62069.868932] ata5: hard resetting link
Jan  2 19:45:23 calypso kernel: [62070.352561] ata5: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
Jan  2 19:45:23 calypso kernel: [62070.367005] ata5.00: configured for UDMA/133
Jan  2 19:45:23 calypso kernel: [62070.367106] ata5: EH complete
Jan  2 19:45:23 calypso kernel: [62070.367249] sd 4:0:0:0: [sdb] 1250263728 512-byte hardware sectors (640135 MB)
Jan  2 19:45:23 calypso kernel: [62070.367288] sd 4:0:0:0: [sdb] Write Protect is off
Jan  2 19:45:23 calypso kernel: [62070.367343] sd 4:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA

smart:

pali@calypso:~/Desktop$ sudo smartctl --all /dev/sdb
smartctl version 5.38 [x86_64-unknown-linux-gnu] Copyright (C) 2002-8 Bruce Allen
Home page is http://smartmontools.sourceforge.net/

=== START OF INFORMATION SECTION ===
Device Model:     SAMSUNG HD642JJ
Serial Number:    S1Q0J1KQ901739
Firmware Version: 1AA01113
User Capacity:    640,135,028,736 bytes
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   8
ATA Standard is:  ATA-8-ACS revision 3b
Local Time is:    Fri Jan  2 20:02:59 2009 CET

==> WARNING: May need -F samsung or -F samsung2 enabled; see manual for details.

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: 		 (7659) 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: 	 ( 128) minutes.
Conveyance self-test routine
recommended polling time: 	 (  14) minutes.
SCT capabilities: 	       (0x003f)	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     0x000f   100   100   051    Pre-fail  Always       -       0
  3 Spin_Up_Time            0x0007   086   086   011    Pre-fail  Always       -       5230
  4 Start_Stop_Count        0x0032   100   100   000    Old_age   Always       -       69
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000f   253   253   051    Pre-fail  Always       -       0
  8 Seek_Time_Performance   0x0025   100   100   015    Pre-fail  Offline      -       0
  9 Power_On_Hours          0x0032   100   100   000    Old_age   Always       -       407
 10 Spin_Retry_Count        0x0033   100   100   051    Pre-fail  Always       -       0
 11 Calibration_Retry_Count 0x0012   100   100   000    Old_age   Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       69
 13 Read_Soft_Error_Rate    0x000e   100   100   000    Old_age   Always       -       0
183 Unknown_Attribute       0x0032   100   100   000    Old_age   Always       -       0
184 Unknown_Attribute       0x0033   100   100   000    Pre-fail  Always       -       0
187 Reported_Uncorrect      0x0032   100   100   000    Old_age   Always       -       0
188 Unknown_Attribute       0x0032   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0022   069   062   000    Old_age   Always       -       31 (Lifetime Min/Max 18/31)
194 Temperature_Celsius     0x0022   068   062   000    Old_age   Always       -       32 (Lifetime Min/Max 18/34)
195 Hardware_ECC_Recovered  0x001a   100   100   000    Old_age   Always       -       3281407
196 Reallocated_Event_Count 0x0032   100   100   000    Old_age   Always       -       0
197 Current_Pending_Sector  0x0012   100   100   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0030   100   100   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x003e   253   253   000    Old_age   Always       -       15
200 Multi_Zone_Error_Rate   0x000a   100   100   000    Old_age   Always       -       0
201 Soft_Read_Error_Rate    0x000a   100   100   000    Old_age   Always       -       0

SMART Error Log Version: 1
No Errors Logged

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


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.

nekem ez nem tűnik betegnek.

a rendszer raid0-n van (tehát stripe) a home pedig raid1 (mirror)
a sata kábel egy méter hosszú, mert csak ilyen volt a boltban, de az még elvileg ok.
nekem úgy tűnik mintha eldobálná a vinyót és újra felismeri hotpluggal. de ha eldobja, akkor hogyhogy tudok olvasni róla? vagy cache-ből menne?

mi lehet ennek az oka?