Newsgroup: it.comp.os.linux.sys
Titolo: Disco sata

Non riesco a capire come caspita succede...
Avevo scritto già tempo fa ma la situazione non è migliorata nel
frattemp, comunque i miei log (su un server archlinux) sono pieni di:
--8<---------------cut here---------------start------------->8---
Dec 28 22:57:37 kernel: ata4: link is slow to respond, please be patient (ready=-19)
Dec 28 22:57:41 kernel: ata4: hard resetting link
--8<---------------cut here---------------end--------------->8---
Il test di smartctl passa, e l'unica cosa che ho trovato da aggiungere
irqpoll alle opzioni di grub, ma non ha funzionato.
Qualcuno ha mai avuto questo problema?
--8<---------------cut here---------------start------------->8---
=== 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:      (  25) The self-test routine was aborted by
                                        the host.
Total time to complete Offline 
data collection:                 (24000) 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:        ( 255) minutes.
Conveyance self-test routine
recommended polling time:        (   5) minutes.
SCT capabilities:              (0x303f) SCT Status supported.
                                        SCT Error Recovery Control supported.
                                        SCT Feature Control supported.
                                        SCT Data Table supported.
--8<---------------cut here---------------end--------------->8---

 Il test di smartctl passa, 
questo test?
smartctl --test=long /dev/sda
--
ciao,
Mirco.

 writes:

Ho rifatto il test, tutto sembra passare, ma nonostante ciò
mi becco questo
Jan  8 15:14:58 misterbox kernel: ata4: hard resetting link
Jan  8 15:15:04 misterbox kernel: ata4: link is slow to respond, please be patient (ready=-19)
ogni 20 secondi 6 secondi praticamente...
smartctl 5.40 2010-10-16 r3189 [x86_64-unknown-linux-gnu] (local build)
Copyright (C) 2002-10 by Bruce Allen, 
http://smartmontools.sourceforge.net
=== START OF INFORMATION SECTION ===
Model Family:     Western Digital Caviar Green family
Device Model:     WDC WD10EACS-00D6B1
Serial Number:    WD-WCAU4A950370
Firmware Version: 01.01A01
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:    Sat Jan  8 15:10:18 2011 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:      (   0)	The previous self-test routine completed
					without error or no self-test has ever 
					been run.

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   184   163   021    Pre-fail  Always       -       5758
  4 Start_Stop_Count        0x0032   100   100   000    Old_age   Always       -       19
  5 Reallocated_Sector_Ct   0x0033   200   200   140    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x002e   100   253   000    Old_age   Always       -       0
  9 Power_On_Hours          0x0032   085   085   000    Old_age   Always       -       11334
 10 Spin_Retry_Count        0x0032   100   253   000    Old_age   Always       -       0
 11 Calibration_Retry_Count 0x0032   100   253   000    Old_age   Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       17
192 Power-Off_Retract_Count 0x0032   200   200   000    Old_age   Always       -       7
193 Load_Cycle_Count        0x0032   200   200   000    Old_age   Always       -       19
194 Temperature_Celsius     0x0022   116   107   000    Old_age   Always       -       34
196 Reallocated_Event_Count 0x0032   200   200   000    Old_age   Always       -       0
197 Current_Pending_Sector  0x0032   200   200   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0030   200   200   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x0032   200   200   000    Old_age   Always       -       0
200 Multi_Zone_Error_Rate   0x0008   200   200   000    Old_age   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%     11321         -
# 2  Extended offline    Aborted by host               90%     11078         -
# 3  Short offline       Completed without error       00%     11078         -
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.

 ogni 20 secondi 6 secondi praticamente...
A naso direi che il disco è sano, avendo avuto un'esperienza simile il 
problema è molto probabilmente nei cavi (alimentazione o dati). Prova a 
sostituirli.

 a sostituirli.
Ok proverò con i cavi.
La cosa strana è che anche hdparm mi dà delle prestazioni normali (in
linea con gli altri dischi perlomeno), quindi proprio non capisco
cos'abbia da lamentarsi tutto il tempo se poi non ci sono problemi...