Smartctl Tool

#Smartctl Tool| 来源: 网络整理| 查看: 265

smartctl is a command line tool for controlling the SMART (Self-Monitoring, Analysis and Reporting Technology) features of hard disks and SSDs, and a component of Smartmontools. The objective of SMART[1] is to monitor the reliability of hard disks and SSDs, as well as to give the ability to run certain drive tests. The Smartmontools[2] include the command line tool smartctl and the smartd Daemon. The Smartmontools are available in a wide selection of our most popular operating systems (Darwin (Mac OS X), Linux, FreeBSD, NetBSD, OpenBSD, Solaris, OS/2, Cygwin, QNX, eComStation, Windows). The article, however, refers to the Linux version.

Contents 1 Installation 2 Usage 2.1 Viewing the SMART Attributes 2.2 Important SMART Attributes 2.3 Performing of Tests 3 References Installation

Smartmontools is available in the repositories of many Linux distributions. For Ubuntu, install the package with the following command:

sudo apt-get install smartmontools

Now smartctl is ready for use.

Usage

Before using smartctl, check to see if the hard disk in use supports S.M.A.R.T.:

sudo smartctl -i /dev/sdc

The following data should be present in the output:

SMART support is: Available - device has SMART capability. SMART support is: Enabled

In case SMART support is available, but for some reason is not activated, try using

sudo smartctl -s on /dev/sdc

to assist with activation.

Viewing the SMART Attributes

To display the SMART attributes of the hard disk, perform the following command:

sudo smartctl -a /dev/sdc

Example output:

smartctl 5.41 2011-06-09 r3365 [x86_64-linux-3.5.0-39-generic] (local build) Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net === START OF INFORMATION SECTION === Model Family: Western Digital RE4 Serial ATA Device Model: WDC WD5003ABYX-01WERA1 Serial Number: WD-WMAYP5453158 LU WWN Device Id: 5 0014ee 00385d526 Firmware Version: 01.01S02 User Capacity: 500,107,862,016 bytes [500 GB] Sector Size: 512 bytes logical/physical Device is: In smartctl database [for details use: -P show] ATA Version is: 8 ATA Standard is: Exact ATA specification draft version not indicated Local Time is: Tue Sep 3 09:05:27 2013 CEST 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: (0x82) Offline data collection activity was completed without error. Auto Offline Data Collection: Enabled. 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: ( 8160) seconds. Offline data collection capabilities: (0x7b) SMART execute Offline immediate. Auto Offline data collection on/off support. Suspend Offline collection upon new command. 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: ( 2) minutes. Extended self-test routine recommended polling time: ( 83) minutes. Conveyance self-test routine recommended polling time: ( 5) minutes. SCT capabilities: (0x303f) 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 0x002f 200 200 051 Pre-fail Always - 0 3 Spin_Up_Time 0x0027 144 143 021 Pre-fail Always - 3775 4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 28 5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0 7 Seek_Error_Rate 0x002e 200 200 000 Old_age Always - 0 9 Power_On_Hours 0x0032 098 098 000 Old_age Always - 2090 10 Spin_Retry_Count 0x0032 100 253 000 Old_age Always - 0 11 Calibration_Retry_Count 0x0032 100 253 000 Old_age Always - 0 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 27 192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 24 193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 3 194 Temperature_Celsius 0x0022 117 103 000 Old_age Always - 26 196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0 197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 0 198 Offline_Uncorrectable 0x0030 200 200 000 Old_age Offline - 0 199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 0 200 Multi_Zone_Error_Rate 0x0008 200 200 000 Old_age Offline - 0 SMART Error Log Version: 1 No Errors Logged 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% 2089 - # 2 Extended offline Completed without error 00% 2087 - # 3 Short offline Completed without error 00% 2084 - 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 (0x0): 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. Important SMART Attributes

The following parameters may provide information concerning an impending hard drive failure.

Reallocated Sectors Count: Number of sectors that have been reallocated due to read errors (remaped). Spin Retry Count: Number of attempts that have been required ot bring the spindel to operating speed. Reallocation Event Count: Number of remaps that have been carried out both (successful and unsuccessful). Current Pending Sector Count: Number of sectors waiting for remapping. Offline_Uncorrectable: Number of uncorrectable errors when accessing (read/write) to sectors. Performing of Tests

For information regarding performing SMART tests, see the following article: SMART tests with smartctl.

References ↑ S.M.A.R.T. (en.wikipedia.org) ↑ Smartmontools (sourceforge.net)

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