HDDのSMART情報チェック

またHDDが壊れたりすると嫌なので、HDDのSMART（Self-Monitoring, Analysis and Reporting Technology）情報をチェックしてみた。

CentOSで実行するには「smartmontools」パッケージが必要である。

物理HDDの確認。

# smartctl --scan
/dev/sda -d scsi # /dev/sda, SCSI device

HDDがSMART対応かの確認。

# smartctl -i /dev/sda
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-3.10.0-327.el7.x86_64] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Western Digital Scorpio Blue Serial ATA
Device Model:     WDC WD800BEVS-08RST2
Serial Number:    WD-WXE208EU0000
LU WWN Device Id: 5 0014ee 201000000
Firmware Version: 08.01G08
User Capacity:    80,026,361,856 bytes [80.0 GB]
Sector Size:      512 bytes logical/physical
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ATA/ATAPI-7 (minor revision not indicated)
Local Time is:    Sun Dec 25 12:02:10 2016 JST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

SMART情報の表示。

# smartctl -A /dev/sda
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-3.10.0-327.el7.x86_64] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF READ SMART DATA SECTION ===
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     0x000f   200   200   051    Pre-fail  Always       -       0
  3 Spin_Up_Time            0x0003   159   145   021    Pre-fail  Always       -       1008
  4 Start_Stop_Count        0x0032   090   090   000    Old_age   Always       -       10178
  5 Reallocated_Sector_Ct   0x0033   200   200   140    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000f   200   200   051    Pre-fail  Always       -       0
  9 Power_On_Hours          0x0032   080   080   000    Old_age   Always       -       15137
 10 Spin_Retry_Count        0x0013   100   100   051    Pre-fail  Always       -       0
 11 Calibration_Retry_Count 0x0012   100   100   051    Old_age   Always       -       0
 12 Power_Cycle_Count       0x0032   093   093   000    Old_age   Always       -       7986
192 Power-Off_Retract_Count 0x0032   200   200   000    Old_age   Always       -       357
193 Load_Cycle_Count        0x0032   119   119   000    Old_age   Always       -       243633
194 Temperature_Celsius     0x0022   115   087   000    Old_age   Always       -       28
196 Reallocated_Event_Count 0x0032   200   200   000    Old_age   Always       -       0
197 Current_Pending_Sector  0x0012   200   200   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0010   100   253   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x003e   200   200   000    Old_age   Always       -       0
200 Multi_Zone_Error_Rate   0x0009   200   200   051    Pre-fail  Offline      -       0

HDDの実行可能な自己診断の表示。

# smartctl -c /dev/sda
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-3.10.0-327.el7.x86_64] (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:      (   0) The previous self-test routine completed
                                        without error or no self-test has ever
                                        been run.
Total time to complete Offline
data collection:                ( 3600) 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:        (  49) minutes.
Conveyance self-test routine
recommended polling time:        (   6) minutes.
SCT capabilities:              (0x103f) SCT Status supported.
                                        SCT Error Recovery Control supported.
                                        SCT Feature Control supported.
                                        SCT Data Table supported.

今のところ異常は無いようである。