/usr/sbin/smartctl – controls  the  Self-Monitoring, Analysis and Reporting Technology (SMART) system built into many ATA-3 and later ATA, IDE and SCSI-3 hard drives. The purpose of SMART is to monitor the reliability of the hard drive, give detailed information and and predict drive failures, and to carry out different types of  drive self-tests. With “-a” option it prints all the SMART information on the disk.

[root@un1xf00 root]# smartctl -a /dev/sda
smartctl version 5.1-11 Copyright (C) 2002-3 Bruce Allen
Home page is http://smartmontools.sourceforge.net/

Device: SEAGATE  ST343427UC       Version: D713
Serial number: MK63N0OQ
Device type: disk
Device supports SMART and is Enabled
Temperature Warning Enabled
SMART Sense: Ok!
Current Drive Temperature:     31 C
Drive Trip Temperature:        68 C

Error counter log:
          Errors Corrected    Total      Total   Correction     Gigabytes    Total
              delay:       [rereads/    errors   algorithm      processed    uncorrected
            minor | major  rewrites]  corrected  invocations   [10^9 bytes]  errors
read:    7040161        0         0   7040161    7040161        669.647           0
write:         0        0         0         0          0       1939.281           1
verify:        0        0         0         0          0          0.000           0

Non-medium error count:        8

SMART Self-test log
Num  Test              Status                 segment  LifeTime  LBA_first_err [SK ASC ASQ]
     Description                              number   (hours)
# 1  Background long   Completed                   –     2                   – [-   –    -]
# 2  Background long   Completed                   –     0                   – [-   –    -]
# 3  Background short  Completed                   –     0                   – [-   –    -]

Long (extended) Self Test duration: 1405 seconds [23.4 minutes]
[root@un1xf00 root]# smartctl -H /dev/sda
smartctl version 5.1-11 Copyright (C) 2002-3 Bruce Allen
Home page is http://smartmontools.sourceforge.net/

SMART Sense: Ok!
Current Drive Temperature:     31 C
Drive Trip Temperature:        68 C
[root@un1xf00 root]#

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