2014-11-20 08:49:28 +08:00
Translating by GOLinux!
2014-11-19 15:35:06 +08:00
Smartctl – & Analysis tool for Hard drive
================================================================================
**Smartctl** (Self-Monitoring, Analysis and Reporting Technology) is a command line utility or a tool in UNIX like operating system that perform SMART tasks such as printing the SMART **self-test** and **error logs** , enabling and disabling SMART **automatic testing** , and initiating device self-tests.
Smartctl is useful on physical Linux servers where smart disks can be checked for errors and extract info regarding the disks that are used behind the **Hardware RAID** .
In this post we will discuss some practical examples of smartctl command, Use below steps to install smartctl , if it is not installed on your linux box.
### Installation of Smartcl in Ubuntu ###
$ sudo apt-get install smartmontools
### Installation of Smartcl in Redhat / CentOS ###
# yum install smartmontools
**Start the Smartctl Service**
**For Ubuntu**
$ sudo /etc/init.d/smartmontools start
**For CentOS & RHEL**
# service smartd start ; chkconfig smartd on
**Example:1 Check Whether Smart Capability is enabled or not for the disk**
root@linuxtechi:~# smartctl -i /dev/sdb
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-3.13.0-32-generic] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: Seagate Momentus 5400.6
Device Model: ST9320325AS
Serial Number: 5VD2V59T
LU WWN Device Id: 5 000c50 020a37ec4
Firmware Version: 0002BSM1
User Capacity: 320,072,933,376 bytes [320 GB]
Sector Size: 512 bytes logical/physical
Rotation Rate: 5400 rpm
Device is: In smartctl database [for details use: -P show]
ATA Version is: ATA8-ACS T13/1699-D revision 4
SATA Version is: SATA 2.6, 1.5 Gb/s
Local Time is: Sun Nov 16 12:32:09 2014 IST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
Where ‘ ’
**Example:2 Enable Smart Capability for the disk**
root@linuxtechi:~# smartctl -s on /dev/sdb
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-3.13.0-32-generic] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF ENABLE/DISABLE COMMANDS SECTION ===
SMART Enabled.
**Example:3 Disable Smart Capability for the disk**
root@linuxtechi:~# smartctl -s off /dev/sdb
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-3.13.0-32-generic] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF ENABLE/DISABLE COMMANDS SECTION ===
SMART Disabled. Use option -s with argument 'on' to enable it.
**Example:4 Display Detailed Smart info for the disk**
root@linuxtechi:~# smartctl -a /dev/sdb // For IDE drive
root@linuxtechi:~# smartctl -a -d ata /dev/sdb // For SATA drive
**Example:5 Display Overall health of the Disk**
root@linuxtechi:~# smartctl -H /dev/sdb
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-3.13.0-32-generic] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
Warning: This result is based on an Attribute check.
Please note the following marginal Attributes:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
190 Airflow_Temperature_Cel 0x0022 067 045 045 Old_age Always In_the_past 33 (Min/Max 25/33)
**Example:6 Test Hard drive using long & short option.**
Long Test
root@linuxtechi:~# smartctl --test=long /dev/sdb
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-3.13.0-32-generic] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF OFFLINE IMMEDIATE AND SELF-TEST SECTION ===
Sending command: "Execute SMART Extended self-test routine immediately in off-line mode".
Drive command "Execute SMART Extended self-test routine immediately in off-line mode" successful.
Testing has begun.
Please wait 102 minutes for test to complete.
Test will complete after Sun Nov 16 14:29:43 2014
Use smartctl -X to abort test.
OR We can redirect test output to a log file , as shown below
root@linuxtechi:~# smartctl --test=long /dev/sdb > /var/log/long.text
**Short Test**
root@linuxtechi:~# smartctl --test=short /dev/sdb
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-3.13.0-32-generic] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF OFFLINE IMMEDIATE AND SELF-TEST SECTION ===
Sending command: "Execute SMART Short self-test routine immediately in off-line mode".
Drive command "Execute SMART Short self-test routine immediately in off-line mode" successful.
Testing has begun.
Please wait 1 minutes for test to complete.
Test will complete after Sun Nov 16 12:51:45 2014
Use smartctl -X to abort test.
OR
root@linuxtechi:~# smartctl --test=short /dev/sdb > /var/log/short.text
**Note** : Short test will take maximum 2 minutes whereas in long test there is no time restriction because it read & verify every segment of the entire disk.
**Example:7 To View Drive’ **
root@linuxtechi:~# smartctl -l selftest /dev/sdb
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-3.13.0-32-generic] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== 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: read failure 90% 492 210841222
# 2 Extended offline Completed: read failure 90% 492 210841222
**Example:8 Calculate Estimate time to perform test**
root@linuxtechi:~# smartctl -c /dev/sdb
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-3.13.0-32-generic] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF READ SMART DATA SECTION ===
General SMART Values:
Offline data collection status: (0x00) Offline data collection activity
was never started.
Auto Offline Data Collection: Disabled.
Self-test execution status: ( 121) The previous self-test completed having
the read element of the test failed.
Total time to complete Offline
data collection: ( 0) seconds.
Offline data collection
capabilities: (0x73) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
No 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: ( 1) minutes.
Extended self-test routine
recommended polling time: ( 102) minutes.
Conveyance self-test routine
recommended polling time: ( 2) minutes.
SCT capabilities: (0x103b) SCT Status supported.
SCT Error Recovery Control supported.
SCT Feature Control supported.
SCT Data Table supported.
**Example:9 Display Error logs of the disk **
root@linuxtechi:~# smartctl -l error /dev/sdb
Sample Output
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-3.13.0-32-generic] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF READ SMART DATA SECTION ===
SMART Error Log Version: 1
ATA Error Count: 5
CR = Command Register [HEX]
FR = Features Register [HEX]
SC = Sector Count Register [HEX]
SN = Sector Number Register [HEX]
CL = Cylinder Low Register [HEX]
CH = Cylinder High Register [HEX]
DH = Device/Head Register [HEX]
DC = Device Command Register [HEX]
ER = Error register [HEX]
ST = Status register [HEX]
Powered_Up_Time is measured from power on, and printed as
DDd+hh:mm:SS.sss where DD=days, hh=hours, mm=minutes,
SS=sec, and sss=millisec. It "wraps" after 49.710 days.
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
25 da 08 e7 e5 a5 4c 00 00:30:44.515 READ DMA EXT
25 da 08 df e5 a5 4c 00 00:30:44.514 READ DMA EXT
25 da 80 5f e5 a5 4c 00 00:30:44.502 READ DMA EXT
25 da f0 5f e6 a5 4c 00 00:30:44.496 READ DMA EXT
25 da 10 4f e6 a5 4c 00 00:30:44.383 READ DMA EXT
--------------------------------------------------------------------------------
via: http://www.linuxtechi.com/smartctl-monitoring-analysis-tool-hard-drive/
作者：[Pradeep Kumar][a]
译者：[译者ID](https://github.com/译者ID)
校对：[校对者ID](https://github.com/校对者ID)
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2014-11-20 08:49:28 +08:00
[a]:http://www.linuxtechi.com/author/pradeep/
