diff --git a/sources/tech/20141119 Smartctl--Monitoring & Analysis tool for Hard drive.md b/sources/tech/20141119 Smartctl--Monitoring & Analysis tool for Hard drive.md new file mode 100644 index 0000000000..c086e135ce --- /dev/null +++ b/sources/tech/20141119 Smartctl--Monitoring & Analysis tool for Hard drive.md @@ -0,0 +1,226 @@ +Smartctl – Monitoring & 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 ‘/dev/sdb’ is your hard disk. Last Two lines in above output shows that SMART capability is enable for the device. + +**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’s Self Test result ** + + 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) + +本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创翻译，[Linux中国](http://linux.cn/) 荣誉推出 + +[a]:http://www.linuxtechi.com/author/pradeep/ \ No newline at end of file