View source for Diagnostica di un Hard Disk con smartctl

Se si ricevono degli errori da smartd, si può indagare se effettivamente ci sono problemi.


==Visulizzazione del log degli errori==

Se un hdd non ha problemi, il log sarà certamente vuoto:
 sudo smartctl -l error /dev/sda

<pre>
smartctl version 5.38 [i686-pc-linux-gnu] Copyright (C) 2002-8 Bruce Allen
Home page is http://smartmontools.sourceforge.net/

=== START OF READ SMART DATA SECTION ===
SMART Error Log Version: 1
No Errors Logged
</pre>

Questo invece mostra un errore di "Unrecovarable Sector"

<pre>
smartctl version 5.38 [i686-pc-linux-gnu] Copyright (C) 2002-8 Bruce Allen
Home page is http://smartmontools.sourceforge.net/

=== START OF READ SMART DATA SECTION ===
SMART Error Log Version: 1
ATA Error Count: 6 (device log contains only the most recent five errors)
...
Error 6 occurred at disk power-on lifetime: 10662 hours (444 days + 6 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
  -- -- -- -- -- -- --
  40 51 ba 32 dd 37 e0  Error: UNC 186 sectors at LBA = 0x0037dd32 = 3661106
...
</pre>

==Esecuzione dei Test==

==Test Veloce==
Verifica danni evidenti all'elettronica e meccanica.

 sudo smartctl -t short /dev/sdb

* Monitorarne l'esecuzione
 watch sudo smartctl -l selftest /dev/sdb

<pre>
smartctl version 5.38 [i686-pc-linux-gnu] Copyright (C) 2002-8 Bruce Allen
Home page is http://smartmontools.sourceforge.net/

=== START OF READ SMART DATA SECTION ===
SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA
_of_first_error
# 1  Short offline       Completed without error       00%     10936         -
</pre>

==Test lungo==

 sudo smartctl -t long /dev/sdb


==Riferimenti==
*[http://smartmontools.sourceforge.net/badblockhowto.html Bad block HOWTO for smartmontools]

*[http://smartmontools.sourceforge.net/faq.html#corrupt-sectors smartmontools FAQ: Smartd is warning that my ATA disk has unreadable or uncorrectable or pending sectors. What's going on?]

*[http://nwsmith.blogspot.com/2007/08/smartmontools-and-fixing-unreadable.html Nigel Smith's Blog: Smartmontools and fixing Unreadable Disk Sectors]