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smartd的安装及使用

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smartd是一个守护进程（一个帮助程序），它能监视拥有自我监视，分析和汇报技术(Self-Monitoring, Analysis, and Reporting Technology - SMART)的硬盘。 SMART系统使得硬盘能监视并汇报自己的运行状况。它的一个重要特性是能够预测失败，使得系统管理员能避免数据丢失。

安装

smartmontools包含 smartctl 和 smartd 两个程序，前者是前台命令行工具、后者是后台运行程序

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apt-get install smartmontools

安装好之后先检查一下硬盘是否具有smart特性

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root@tangmingyu-QiTianM610-D529:/home/tangmingyu# smartctl -i /dev/sda
smartctl 6.6 2016-05-31 r4324 [x86_64-linux-4.15.0-39-generic] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family:     Seagate Barracuda 7200.14 (AF)
Device Model:     ST1000DM003-1SB102
Serial Number:    Z9ARYZYS
LU WWN Device Id: 5 000c50 0b0cc93ae
Firmware Version: CC63
User Capacity:    1,000,204,886,016 bytes [1.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    7200 rpm
Form Factor:      3.5 inches
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ACS-2, ACS-3 T13/2161-D revision 3b
SATA Version is:  SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Tue Nov 20 15:25:54 2018 CST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

然后检查一下硬盘状况

如果下面的结果不是 PASSED 的话你需要立刻警觉起来，马上备份所有数据，硬盘随时都可能出问题（不过值得注意的是就算结果是 PASSED 并不意味着硬盘100％就安全，PASS 不能代表没问题，没 PASS 代表一定有问题）

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smartctl -H /dev/sda
root@tangmingyu-QiTianM610-D529:/home/tangmingyu# smartctl -H /dev/sda
smartctl 6.6 2016-05-31 r4324 [x86_64-linux-4.15.0-39-generic] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

可以做一个快速检查

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smartctl -t short /dev/sda
smartctl -l selftest /dev/sda     （看进度和结果）

smartd使用

教程 https://linux.die.net/man/8/smartd

smartd是一个监视自我监控的守护进程（ a daemon that monitors the Self-Monitoring），通过syslog接口记录SMART的错误和变化，还可以配置成为：如果检测到问题就发电子邮件警告。

smartd is a daemon that monitors the Self-Monitoring, Analysis and Reporting Technology (SMART) system built into many ATA-3 and later ATA, IDE and SCSI-3 hard drives.

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Usage: smartd [options]
  -A PREFIX, --attributelog=PREFIX
        Log ATA attribute information to {PREFIX}MODEL-SERIAL.ata.csv
        [default is /var/lib/smartmontools/attrlog.MODEL-SERIAL.ata.csv]
  -B [+]FILE, --drivedb=[+]FILE
        Read and replace [add] drive database from FILE
        [default is +/etc/smart_drivedb.h
         and then    /var/lib/smartmontools/drivedb/drivedb.h]
  -c NAME|-, --configfile=NAME|-
        Read configuration file NAME or stdin
        [default is /etc/smartd.conf]
  -C, --capabilities
        Drop unneeded Linux process capabilities.
        Warning: Mail notification does not work when used.
  -d, --debug
        Start smartd in debug mode
  -D, --showdirectives
        Print the configuration file Directives and exit
  -h, --help, --usage
        Display this help and exit
  -i N, --interval=N
        Set interval between disk checks to N seconds, where N >= 10
  -l local[0-7], --logfacility=local[0-7]
        Use syslog facility local0 - local7 or daemon [default]
  -n, --no-fork
        Do not fork into background
  -p NAME, --pidfile=NAME
        Write PID file NAME
  -q WHEN, --quit=WHEN
        Quit on one of: nodev, errors, nodevstartup, never, onecheck, showtests
  -r, --report=TYPE
        Report transactions for one of: ioctl[,N], ataioctl[,N], scsiioctl[,N], nvmeioctl[,N]
  -s PREFIX, --savestates=PREFIX
        Save disk states to {PREFIX}MODEL-SERIAL.TYPE.state
        [default is /var/lib/smartmontools/smartd.MODEL-SERIAL.TYPE.state]
  -w NAME, --warnexec=NAME
        Run executable NAME on warnings
        [default is /usr/share/smartmontools/smartd_warning.sh]
  -V, --version, --license, --copyright
        Print License, Copyright, and version information

自动报警

在smartd.conf里面已经配置了很多监视的操作 可以通过取消注释的方式启动它们

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vi /etc/smartd.conf
打开后里面大部分都是被注释掉的说明
# Monitor all attributes except normalized Temperature (usually 194),
# but track Temperature changes >= 4 Celsius, report Temperatures
# >= 45 Celsius and changes in Raw value of Reallocated_Sector_Ct (5).
# Send mail on SMART failures or when Temperature is >= 55 Celsius.
#/dev/sdc -a -I 194 -W 4,45,55 -R 5 -m admin@example.com
# A very silent check.  Only report SMART health status if it fails
# But send an email in this case
#/dev/sdc -H -C 0 -U 0 -m admin@example.com

Examples

smartd
Runs the daemon in forked mode. This is the normal way to run smartd. Entries are logged to SYSLOG.

smartd -d -i 30
Run in foreground (debug) mode, checking the disk status every 30 seconds.

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smartd 6.6 2016-05-31 r4324 [x86_64-linux-4.15.0-39-generic] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org
Opened configuration file /etc/smartd.conf
Drive: DEVICESCAN, implied '-a' Directive on line 21 of file /etc/smartd.conf
Configuration file /etc/smartd.conf was parsed, found DEVICESCAN, scanning devices
glob(3) found no matches for pattern /dev/hd[a-t]
glob(3) found no matches for pattern /dev/sd[a-c][a-z]
Device: /dev/sda, type changed from 'scsi' to 'sat'
Device: /dev/sda [SAT], opened
Device: /dev/sda [SAT], ST1000DM003-1SB102, S/N:Z9ARYZYS, WWN:5-000c50-0b0cc93ae, FW:CC63, 1.00 TB
Device: /dev/sda [SAT], found in smartd database: Seagate Barracuda 7200.14 (AF)
Device: /dev/sda [SAT], is SMART capable. Adding to "monitor" list.
Device: /dev/sda [SAT], state read from /var/lib/smartmontools/smartd.ST1000DM003_1SB102-Z9ARYZYS.ata.state
Device: /dev/sdb, type changed from 'scsi' to 'sat'
Device: /dev/sdb [SAT], opened
Device: /dev/sdb [SAT], INTEL SSDSC2KW256G8, S/N:PHLA8235067W256CGN, WWN:5-5cd2e4-14f90188b, FW:LHF002C, 256 GB
Device: /dev/sdb [SAT], not found in smartd database.
Device: /dev/sdb [SAT], can't monitor Current_Pending_Sector count - no Attribute 197
Device: /dev/sdb [SAT], can't monitor Offline_Uncorrectable count - no Attribute 198
Device: /dev/sdb [SAT], is SMART capable. Adding to "monitor" list.
Device: /dev/sdb [SAT], state read from /var/lib/smartmontools/smartd.INTEL_SSDSC2KW256G8-PHLA8235067W256CGN.ata.state
Monitoring 2 ATA/SATA, 0 SCSI/SAS and 0 NVMe devices
Device: /dev/sda [SAT], opened ATA device
Device: /dev/sda [SAT], previous self-test completed without error
Device: /dev/sdb [SAT], opened ATA device
Device: /dev/sdb [SAT], previous self-test completed without error
Device: /dev/sda [SAT], state written to /var/lib/smartmontools/smartd.ST1000DM003_1SB102-Z9ARYZYS.ata.state
Device: /dev/sdb [SAT], state written to /var/lib/smartmontools/smartd.INTEL_SSDSC2KW256G8-PHLA8235067W256CGN.ata.state
^CDevice: /dev/sda [SAT], state written to /var/lib/smartmontools/smartd.ST1000DM003_1SB102-Z9ARYZYS.ata.state
Device: /dev/sdb [SAT], state written to /var/lib/smartmontools/smartd.INTEL_SSDSC2KW256G8-PHLA8235067W256CGN.ata.state
Signal INT - rereading configuration file /etc/smartd.conf (CONTROL-\ quits)
Opened configuration file /etc/smartd.conf
Drive: DEVICESCAN, implied '-a' Directive on line 21 of file /etc/smartd.conf
Configuration file /etc/smartd.conf was parsed, found DEVICESCAN, scanning devices
glob(3) found no matches for pattern /dev/hd[a-t]
glob(3) found no matches for pattern /dev/sd[a-c][a-z]
Device: /dev/sda, type changed from 'scsi' to 'sat'
Device: /dev/sda [SAT], opened
Device: /dev/sda [SAT], ST1000DM003-1SB102, S/N:Z9ARYZYS, WWN:5-000c50-0b0cc93ae, FW:CC63, 1.00 TB
Device: /dev/sda [SAT], found in smartd database: Seagate Barracuda 7200.14 (AF)
Device: /dev/sda [SAT], is SMART capable. Adding to "monitor" list.
Device: /dev/sda [SAT], state read from /var/lib/smartmontools/smartd.ST1000DM003_1SB102-Z9ARYZYS.ata.state
Device: /dev/sdb, type changed from 'scsi' to 'sat'
Device: /dev/sdb [SAT], opened
Device: /dev/sdb [SAT], INTEL SSDSC2KW256G8, S/N:PHLA8235067W256CGN, WWN:5-5cd2e4-14f90188b, FW:LHF002C, 256 GB
Device: /dev/sdb [SAT], not found in smartd database.
Device: /dev/sdb [SAT], can't monitor Current_Pending_Sector count - no Attribute 197
Device: /dev/sdb [SAT], can't monitor Offline_Uncorrectable count - no Attribute 198
Device: /dev/sdb [SAT], is SMART capable. Adding to "monitor" list.
Device: /dev/sdb [SAT], state read from /var/lib/smartmontools/smartd.INTEL_SSDSC2KW256G8-PHLA8235067W256CGN.ata.state
Monitoring 2 ATA/SATA, 0 SCSI/SAS and 0 NVMe devices
Device: /dev/sda [SAT], opened ATA device
Device: /dev/sdb [SAT], opened ATA device
Device: /dev/sda [SAT], state written to /var/lib/smartmontools/smartd.ST1000DM003_1SB102-Z9ARYZYS.ata.state
Device: /dev/sdb [SAT], state written to /var/lib/smartmontools/smartd.INTEL_SSDSC2KW256G8-PHLA8235067W256CGN.ata.state

smartd -q onecheck
Registers devices, and checks the status of the devices exactly once. The exit status (the bash $? variable) will be zero if all went well, and nonzero if no devices were detected or some other problem was encountered.

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root@tangmingyu-QiTianM610-D529:/home/tangmingyu# smartd -q onecheck
smartd 6.6 2016-05-31 r4324 [x86_64-linux-4.15.0-39-generic] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org
Opened configuration file /etc/smartd.conf
Drive: DEVICESCAN, implied '-a' Directive on line 21 of file /etc/smartd.conf
Configuration file /etc/smartd.conf was parsed, found DEVICESCAN, scanning devices
glob(3) found no matches for pattern /dev/hd[a-t]
glob(3) found no matches for pattern /dev/sd[a-c][a-z]
Device: /dev/sda, type changed from 'scsi' to 'sat'
Device: /dev/sda [SAT], opened
Device: /dev/sda [SAT], ST1000DM003-1SB102, S/N:Z9ARYZYS, WWN:5-000c50-0b0cc93ae, FW:CC63, 1.00 TB
Device: /dev/sda [SAT], found in smartd database: Seagate Barracuda 7200.14 (AF)
Device: /dev/sda [SAT], is SMART capable. Adding to "monitor" list.
Device: /dev/sda [SAT], state read from /var/lib/smartmontools/smartd.ST1000DM003_1SB102-Z9ARYZYS.ata.state
Device: /dev/sdb, type changed from 'scsi' to 'sat'
Device: /dev/sdb [SAT], opened
Device: /dev/sdb [SAT], INTEL SSDSC2KW256G8, S/N:PHLA8235067W256CGN, WWN:5-5cd2e4-14f90188b, FW:LHF002C, 256 GB
Device: /dev/sdb [SAT], not found in smartd database.
Device: /dev/sdb [SAT], can't monitor Current_Pending_Sector count - no Attribute 197
Device: /dev/sdb [SAT], can't monitor Offline_Uncorrectable count - no Attribute 198
Device: /dev/sdb [SAT], is SMART capable. Adding to "monitor" list.
Device: /dev/sdb [SAT], state read from /var/lib/smartmontools/smartd.INTEL_SSDSC2KW256G8-PHLA8235067W256CGN.ata.state
Monitoring 2 ATA/SATA, 0 SCSI/SAS and 0 NVMe devices
Device: /dev/sda [SAT], opened ATA device
Device: /dev/sda [SAT], previous self-test completed without error
Device: /dev/sdb [SAT], opened ATA device
Device: /dev/sdb [SAT], previous self-test completed without error
Device: /dev/sda [SAT], state written to /var/lib/smartmontools/smartd.ST1000DM003_1SB102-Z9ARYZYS.ata.state
Device: /dev/sdb [SAT], state written to /var/lib/smartmontools/smartd.INTEL_SSDSC2KW256G8-PHLA8235067W256CGN.ata.state
Started with '-q onecheck' option. All devices sucessfully checked once.
smartd is exiting (exit status 0)

smartctl使用

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Usage: smartctl [options] device
============================================ SHOW INFORMATION OPTIONS =====
  -h, --help, --usage
         Display this help and exit
  -V, --version, --copyright, --license
         Print license, copyright, and version information and exit
  -i, --info
         Show identity information for device
root@tangmingyu-QiTianM610-D529:/home/tangmingyu# smartctl -i /dev/sdb
smartctl 6.6 2016-05-31 r4324 [x86_64-linux-4.15.0-39-generic] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Device Model:     INTEL SSDSC2KW256G8
Serial Number:    PHLA8235067W256CGN
LU WWN Device Id: 5 5cd2e4 14f90188b
Firmware Version: LHF002C
User Capacity:    256,060,514,304 bytes [256 GB]
Sector Size:      512 bytes logical/physical
Rotation Rate:    Solid State Device
Form Factor:      2.5 inches
Device is:        Not in smartctl database [for details use: -P showall]
ATA Version is:   ACS-3 (minor revision not indicated)
SATA Version is:  SATA 3.2, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Tue Nov 20 16:48:02 2018 CST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
  --identify[=[w][nvb]]
         Show words and bits from IDENTIFY DEVICE data                (ATA)
root@tangmingyu-QiTianM610-D529:/home/tangmingyu# smartctl --identify /dev/sdb
smartctl 6.6 2016-05-31 r4324 [x86_64-linux-4.15.0-39-generic] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org
=== ATA IDENTIFY DATA ===
Word     Bit     Value   Description
   0      -     0x0040   General configuration
   0      6          1   Not removable controller and/or device [OBS-6]
   1      -     0x3fff   Cylinders [OBS-6]
   2      -     0xc837   Specific configuration (0x37c8/738c/8c73/c837)
   3      -     0x0010   Heads [OBS-6]
   6      -     0x003f   Sectors per track [OBS-6]
  10-19   -     .        Serial number (String)
  10-13   .     0x5048:4c41:3832:3335  "PHLA8235"
  14-17   .     0x3036:3757:3235:3643  "067W256C"
  18-19   .     0x474e:2020            "GN  "
  23-26   -     .        Firmware revision (String)
  23-26   .     0x204c:4846:3030:3243  " LHF002C"
  27-46   -     .        Model number (String)
  27-30   .     0x494e:5445:4c20:5353  "INTEL SS"
  31-34   .     0x4453:4332:4b57:3235  "DSC2KW25"
  35-38   .     0x3647:3820:2020:2020  "6G8     "
  39-42   .     0x2020:2020:2020:2020  "        "
  43-46   .     0x2020:2020:2020:2020  "        "
  -g NAME, --get=NAME
        Get device setting: all, aam, apm, lookahead, security, wcache, rcache, wcreorder
  -a, --all
         Show all SMART information for device
  -x, --xall
         Show all information for device
显示信息很多 还包括了温度
SCT Status Version:                  3
SCT Version (vendor specific):       522 (0x020a)
SCT Support Level:                   1
Device State:                        Active (0)
Current Temperature:                    35 Celsius
Power Cycle Min/Max Temperature:     24/35 Celsius
Lifetime    Min/Max Temperature:     22/39 Celsius
Under/Over Temperature Limit Count:   0/0
  --scan
         Scan for devices
root@tangmingyu-QiTianM610-D529:/home/tangmingyu# smartctl --scan
/dev/sda -d scsi # /dev/sda, SCSI device
/dev/sdb -d scsi # /dev/sdb, SCSI device
  --scan-open
         Scan for devices and try to open each device
================================== SMARTCTL RUN-TIME BEHAVIOR OPTIONS =====
  -q TYPE, --quietmode=TYPE                                           (ATA)
         Set smartctl quiet mode to one of: errorsonly, silent, noserial
  -d TYPE, --device=TYPE
         Specify device type to one of: ata, scsi, nvme[,NSID], sat[,auto][,N][+TYPE], usbcypress[,X], usbjmicron[,p][,x][,N], usbprolific, usbsunplus, marvell, areca,N/E, 3ware,N, hpt,L/M/N, megaraid,N, aacraid,H,L,ID, cciss,N, auto, test
  -T TYPE, --tolerance=TYPE                                           (ATA)
         Tolerance: normal, conservative, permissive, verypermissive
  -b TYPE, --badsum=TYPE                                              (ATA)
         Set action on bad checksum to one of: warn, exit, ignore
  -r TYPE, --report=TYPE
         Report transactions (see man page)
  -n MODE, --nocheck=MODE                                             (ATA)
         No check if: never, sleep, standby, idle (see man page)
============================== DEVICE FEATURE ENABLE/DISABLE COMMANDS =====
  -s VALUE, --smart=VALUE
        Enable/disable SMART on device (on/off)
  -o VALUE, --offlineauto=VALUE                                       (ATA)
        Enable/disable automatic offline testing on device (on/off)
  -S VALUE, --saveauto=VALUE                                          (ATA)
        Enable/disable Attribute autosave on device (on/off)
  -s NAME[,VALUE], --set=NAME[,VALUE]
        Enable/disable/change device setting: aam,[N|off], apm,[N|off],
        lookahead,[on|off], security-freeze, standby,[N|off|now],
        wcache,[on|off], rcache,[on|off], wcreorder,[on|off]
======================================= READ AND DISPLAY DATA OPTIONS =====
  -H, --health
        Show device SMART health status
root@tangmingyu-QiTianM610-D529:/home/tangmingyu# smartctl -H /dev/sda
smartctl 6.6 2016-05-31 r4324 [x86_64-linux-4.15.0-39-generic] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
  -c, --capabilities                                            (ATA, NVMe)
        Show device SMART capabilities
  -A, --attributes
        Show device SMART vendor-specific Attributes and values
root@tangmingyu-QiTianM610-D529:/home/tangmingyu# smartctl -A  /dev/sda
smartctl 6.6 2016-05-31 r4324 [x86_64-linux-4.15.0-39-generic] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF READ SMART DATA SECTION ===
SMART Attributes Data Structure revision number: 10
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   082   063   006    Pre-fail  Always       -       195955408
  3 Spin_Up_Time            0x0003   097   097   000    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   100   100   020    Old_age   Always       -       110
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000f   066   060   045    Pre-fail  Always       -       5175994
  9 Power_On_Hours          0x0032   100   100   000    Old_age   Always       -       489
 10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   020    Old_age   Always       -       110
183 Runtime_Bad_Block       0x0032   100   100   000    Old_age   Always       -       0
184 End-to-End_Error        0x0032   100   100   099    Old_age   Always       -       0
187 Reported_Uncorrect      0x0032   100   100   000    Old_age   Always       -       0
188 Command_Timeout         0x0032   100   100   000    Old_age   Always       -       0 0 0
189 High_Fly_Writes         0x003a   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0022   065   061   040    Old_age   Always       -       35 (Min/Max 24/35)
193 Load_Cycle_Count        0x0032   100   100   000    Old_age   Always       -       116
194 Temperature_Celsius     0x0022   035   022   000    Old_age   Always       -       35 (0 22 0 0 0)
195 Hardware_ECC_Recovered  0x001a   001   001   000    Old_age   Always       -       195955408
197 Current_Pending_Sector  0x0012   100   100   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0010   100   100   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x003e   200   200   000    Old_age   Always       -       0
240 Head_Flying_Hours       0x0000   100   253   000    Old_age   Offline      -       489h+26m+38.312s
241 Total_LBAs_Written      0x0000   100   253   000    Old_age   Offline      -       1023618382
242 Total_LBAs_Read         0x0000   100   253   000    Old_age   Offline      -       716149754
  -f FORMAT, --format=FORMAT                                          (ATA)
        Set output format for attributes: old, brief, hex[,id|val]
  -l TYPE, --log=TYPE
        Show device log. TYPE: error, selftest, selective, directory[,g|s],
                               xerror[,N][,error], xselftest[,N][,selftest],
                               background, sasphy[,reset], sataphy[,reset],
                               scttemp[sts,hist], scttempint,N[,p],
                               scterc[,N,M], devstat[,N], ssd,
                               gplog,N[,RANGE], smartlog,N[,RANGE],
                               nvmelog,N,SIZE
  -v N,OPTION , --vendorattribute=N,OPTION                            (ATA)
        Set display OPTION for vendor Attribute N (see man page)
  -F TYPE, --firmwarebug=TYPE                                         (ATA)
        Use firmware bug workaround:
        none, nologdir, samsung, samsung2, samsung3, xerrorlba, swapid
  -P TYPE, --presets=TYPE                                             (ATA)
        Drive-specific presets: use, ignore, show, showall
  -B [+]FILE, --drivedb=[+]FILE                                       (ATA)
        Read and replace [add] drive database from FILE
        [default is +/etc/smart_drivedb.h
         and then    /var/lib/smartmontools/drivedb/drivedb.h]
============================================ DEVICE SELF-TEST OPTIONS =====
  -t TEST, --test=TEST
        Run test. TEST: offline, short, long, conveyance, force, vendor,N,
                        select,M-N, pending,N, afterselect,[on|off]
  -C, --captive
        Do test in captive mode (along with -t)
  -X, --abort
        Abort any non-captive test on device
=================================================== SMARTCTL EXAMPLES =====
  smartctl --all /dev/sda                    (Prints all SMART information)
  smartctl --smart=on --offlineauto=on --saveauto=on /dev/sda
                                              (Enables SMART on first disk)
  smartctl --test=long /dev/sda          (Executes extended disk self-test)
  smartctl --attributes --log=selftest --quietmode=errorsonly /dev/sda
                                      (Prints Self-Test & Attribute errors)
  smartctl --all --device=3ware,2 /dev/sda
  smartctl --all --device=3ware,2 /dev/twe0
  smartctl --all --device=3ware,2 /dev/twa0
  smartctl --all --device=3ware,2 /dev/twl0
          (Prints all SMART info for 3rd ATA disk on 3ware RAID controller)
  smartctl --all --device=hpt,1/1/3 /dev/sda
          (Prints all SMART info for the SATA disk attached to the 3rd PMPort
           of the 1st channel on the 1st HighPoint RAID controller)
  smartctl --all --device=areca,3/1 /dev/sg2
          (Prints all SMART info for 3rd ATA disk of the 1st enclosure
           on Areca RAID controller)
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