Comprobar estado del disco duro con S.M.A.R.T. Monitoring Tools

No es la primera vez que hablamos del estado de los discos en Linux Hispano. Lo que esta vez os planteo es una fácil y, al mismo tiempo, completa herramienta para la comprobación del estado del disco.

Es un tema que me preocupa bastante, vivo rodeado de copias de seguridad pero nunca dejará de molestarme reemplazar un disco por no conocer su estado.

Bien, la aplicación que os planteo es smartmontools, la podéis instalar desde el repositorio oficial de Debian (también en Ubuntu

ahornero@6581-D:~$ sudo apt-get install smartmontools

Una vez instalado, con el comando DF y el parámetro -h (humans) vemos las paticiones montadas en el sistema:

ahornero@6581-D:~$ df -h

Filesystem Size Used Avail Use% Mounted on
/dev/sda5 54G 3.3G 48G 7% /
tmpfs 1.5G 0 1.5G 0% /lib/init/rw
udev 1.5G 212K 1.5G 1% /dev
tmpfs 1.5G 140K 1.5G 1% /dev/shm
/dev/sda6 92G 51G 37G 58% /home

Viendo esto sabremos que podremos analizar, seleccionando la partición donde se encuentra mi HOME (/dev/sda6) será la que analizaré con SMT.

ahornero@6581-D:~$ smartctl -a /dev/sda6

=== START OF INFORMATION SECTION ===
Device Model: Hitachi HTS543216L9SA00
Serial Number: 090627FB2206VCGAV1KC
Firmware Version: FB2OC43C
User Capacity: 160,041,885,696 bytes
Device is: Not in smartctl database [for details use: -P showall]
ATA Version is: 8
ATA Standard is: ATA-8-ACS revision 3f
Local Time is: Tue Sep 20 17:14:16 2011 UTC
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: (0×00) 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: (0×0003) Saves SMART data before entering
power-saving mode.
Supports SMART auto save timer.
Error logging capability: (0×01) Error logging supported.
General Purpose Logging supported.
Short self-test routine
recommended polling time: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 67) minutes.
SCT capabilities: (0x003d) SCT Status supported.
SCT Error Recovery Control 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 0x000b 100 100 062 Pre-fail Always – 0
2 Throughput_Performance 0×0005 100 100 040 Pre-fail Offline – 0
3 Spin_Up_Time 0×0007 253 253 033 Pre-fail Always – 0
4 Start_Stop_Count 0×0012 100 100 000 Old_age Always – 956
5 Reallocated_Sector_Ct 0×0033 100 100 005 Pre-fail Always – 20
7 Seek_Error_Rate 0x000b 100 100 067 Pre-fail Always – 0
8 Seek_Time_Performance 0×0005 100 100 040 Pre-fail Offline – 0
9 Power_On_Hours 0×0012 096 096 000 Old_age Always – 1755
10 Spin_Retry_Count 0×0013 100 100 060 Pre-fail Always – 0
12 Power_Cycle_Count 0×0032 100 100 000 Old_age Always – 772
191 G-Sense_Error_Rate 0x000a 100 100 000 Old_age Always – 0
192 Power-Off_Retract_Count 0×0032 100 100 000 Old_age Always – 16
193 Load_Cycle_Count 0×0012 098 098 000 Old_age Always – 26111
194 Temperature_Celsius 0×0002 130 130 000 Old_age Always – 42 (Lifetime Min/Max 12/49)
196 Reallocated_Event_Count 0×0032 100 100 000 Old_age Always – 24
197 Current_Pending_Sector 0×0022 100 100 000 Old_age Always – 9
198 Offline_Uncorrectable 0×0008 100 100 000 Old_age Offline – 0
199 UDMA_CRC_Error_Count 0x000a 200 200 000 Old_age Always – 0
223 Load_Retry_Count 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 (0×0):
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.

Obteniendo de esta forma un análisis completo de la partición seleccionada.

Author Description

Alberto Hornero Luque

Contínuamente relacionado con el procesamiento de imágenes y el análisis numérico, se encuentra actualmente trabajando como Ingeniero Técnico en el laboratorio de Métodos Cuantitativos de Teledetección del CSIC. Administrador del portal Linux Hispano centra sus intereses en tecnologías abiertas, desarrollos en la nube y GNU/Linux, y hace poco fundó junto a Javier Carazo una startup, Codection. Puedes seguir sus updates en @ahornero y LinkedIn.