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smartd.conf - SMART Disk Monitoring Daemon Configuration File
If the configuration file /etc/smartd.conf is present, smartd reads it at startup, before fork(2)ing into the background. If smartd subsequently receives a HUP signal, it will then re-read the configuration file. If smartd is running in debug mode, then an INT signal will also make it re-read the configuration file. This signal can be generated by typing <CONTROL-C> in the terminal window where smartd is running.
This can be annoying if you have an ATA or SCSI device that hangs or misbehaves when receiving SMART commands. Even if this causes no problems, you may be annoyed by the string of error log messages about block-major devices that can't be found, and SCSI devices that can't be opened.
One can avoid this problem, and gain more control over the types of events monitored by smartd, by using the configuration file /etc/smartd.conf. This file contains a list of devices to monitor, with one device per line. An example file is included with the smartmontools distribution. You will find this sample configuration file in /usr/share/doc/smartmontools-5.36/. For security, the configuration file should not be writable by anyone but root. The syntax of the file is as follows:
Here is an example configuration file. It's for illustrative purposes only; please don't copy it onto your system without reading to the end of the DIRECTIVES Section below!
################################################ # This is an example smartd startup config file # /etc/smartd.conf for monitoring three # ATA disks, three SCSI disks, six ATA disks # behind two 3ware controllers and one SATA disk # # First ATA disk on two different interfaces. On # the second disk, start a long self-test every # Sunday between 3 and 4 am. # /dev/hda -a -m admin@example.com,root@localhost /dev/hdc -a -I 194 -I 5 -i 12 -s L/../../7/03 # # SCSI disks. Send a TEST warning email to admin on # startup. # /dev/sda /dev/sdb -m admin@example.com -M test # # Strange device. It's SCSI. Start a scheduled # long self test between 5 and 6 am Monday/Thursday /dev/weird -d scsi -s L/../../(1|4)/05 # # Linux-specific: SATA disk using the libata # driver. This requires a 2.6.15 or greater # kernel. The device entry is SCSI but the # underlying disk understands ATA SMART commands /dev/sda -a -d ata # # Four ATA disks on a 3ware 6/7/8000 controller. # Start short self-tests daily between midnight and 1am, # 1-2, 2-3, and 3-4 am. Starting with the Linux 2.6 # kernel series, /dev/sdX is deprecated in favor of # /dev/tweN. For example replace /dev/sdc by /dev/twe0 # and /dev/sdd by /dev/twe1. /dev/sdc -d 3ware,0 -a -s S/../.././00 /dev/sdc -d 3ware,1 -a -s S/../.././01 /dev/sdd -d 3ware,2 -a -s S/../.././02 /dev/sdd -d 3ware,3 -a -s S/../.././03 # # Two ATA disks on a 3ware 9000 controller. # Start long self-tests Sundays between midnight and # 1am and 2-3 am /dev/twa0 -d 3ware,0 -a -s L/../../7/00 /dev/twa0 -d 3ware,1 -a -s L/../../7/02 # # The following line enables monitoring of the # ATA Error Log and the Self-Test Error Log. # It also tracks changes in both Prefailure # and Usage Attributes, apart from Attributes # 9, 194, and 231, and shows continued lines: # /dev/hdd -l error \ -l selftest \ -t \ # Attributes not tracked: -I 194 \ # temperature -I 231 \ # also temperature -I 9 # power-on hours # ################################################
If the first non-comment entry in the configuration file is the text string DEVICESCAN in capital letters, then smartd will ignore any remaining lines in the configuration file, and will scan for devices. DEVICESCAN may optionally be followed by Directives that will apply to all devices that are found in the scan. Please see below for additional details.
The following are the Directives that may appear following the device name or DEVICESCAN on any line of the /etc/smartd.conf configuration file. Note that these are NOT command-line options for smartd. The Directives below may appear in any order, following the device name.
For an ATA device, if no Directives appear, then the device will be monitored as if the '-a' Directive (monitor all SMART properties) had been given.
If a SCSI disk is listed, it will be monitored at the maximum implemented level: roughly equivalent to using the '-H -l selftest' options for an ATA disk. So with the exception of '-d', '-m', '-l selftest', '-s', and '-M', the Directives below are ignored for SCSI disks. For SCSI disks, the '-m' Directive sends a warning email if the SMART status indicates a disk failure or problem, if the SCSI inquiry about disk status fails, or if new errors appear in the self-test log.
If a 3ware controller is used then the corresponding SCSI (/dev/sd?) or character device (/dev/twe? or /dev/twa?) must be listed, along with the '-d 3ware,N' Directive (see below). The individual ATA disks hosted by the 3ware controller appear to smartd as normal ATA devices. Hence all the ATA directives can be used for these disks (but see note below).
If none of these three arguments is given, then smartd will first attempt to guess the device type by looking at whether the sixth character in the device name is an 's' or an 'h'. This will work for device names like /dev/hda or /dev/sdb, and corresponds to choosing ata or scsi respectively. If smartd can't guess from this sixth character, then it will simply try to access the device using first ATA and then SCSI ioctl()s.
The valid arguments to this Directive are:
ata - the device type is ATA. This prevents smartd from issuing SCSI commands to an ATA device.
scsi - the device type is SCSI. This prevents smartd from issuing ATA commands to a SCSI device.
marvell - Under Linux, interact with SATA disks behind Marvell chip-set controllers (using the Marvell rather than libata driver).
3ware,N - the device consists of one or more ATA disks connected to a 3ware RAID controller. The non-negative integer N (in the range from 0 to 15 inclusive) denotes which disk on the controller is monitored. In log files and email messages this disk will be identified as 3ware_disk_XX with XX in the range from 00 to 15 inclusive.
This Directive may at first appear confusing, because the 3ware controller is a SCSI device (such as /dev/sda) and should be listed as such in the the configuration file. However when the '-d 3ware,N' Directive is used, then the corresponding disk is addressed using native ATA commands which are 'passed through' the SCSI driver. All ATA Directives listed in this man page may be used. Note that while you may use any of the 3ware SCSI logical devices /dev/sd? to address any of the physical disks (3ware ports), error and log messages will make the most sense if you always list the 3ware SCSI logical device corresponding to the particular physical disks. Please see the smartctl man page for further details.
ATA disks behind 3ware controllers may alternatively be accessed via a character device interface /dev/twe0-15 (3ware 6000/7000/8000 controllers) and /dev/twa0-15 (3ware 9000 series controllers). Note that the 9000 series controllers may only be accessed using the character device interface /dev/twa0-15 and not the SCSI device interface /dev/sd?. Please see the smartctl man page for further details.
Note that older 3w-xxxx drivers do not pass the 'Enable Autosave' (-S on) and 'Enable Automatic Offline' (-o on) commands to the disk, if the SCSI interface is used, and produce these types of harmless syslog error messages instead: '3w-xxxx: tw_ioctl(): Passthru size (123392) too big'. This can be fixed by upgrading to version 1.02.00.037 or later of the 3w-xxxx driver, or by applying a patch to older versions. See http://smartmontools.sourceforge.net/ for instructions. Alternatively use the character device interfaces /dev/twe0-15 (3ware 6/7/8000 series controllers) or /dev/twa0-15 (3ware 9000 series controllers).
cciss,N - the device consists of one or more SCSI disks connected to a cciss RAID controller. The non-negative integer N (in the range from 0 to 15 inclusive) denotes which disk on the controller is monitored. In log files and email messages this disk will be identified as cciss_disk_XX with XX in the range from 00 to 15 inclusive.
3ware and cciss controllers are currently ONLY supported under Linux.
removable - the device or its media is removable. This indicates to smartd that it should continue (instead of exiting, which is the default behavior) if the device does not appear to be present when smartd is started. This Directive may be used in conjunction with the other '-d' Directives.
ATA disks have five different power states. In order of increasing power consumption they are: 'OFF', 'SLEEP', 'STANDBY', 'IDLE', and 'ACTIVE'. Typically in the OFF, SLEEP, and STANDBY modes the disk's platters are not spinning. But usually, in response to SMART commands issued by smartd, the disk platters are spun up. So if this option is not used, then a disk which is in a low-power mode may be spun up and put into a higher-power mode when it is periodically polled by smartd.
Note that if the disk is in SLEEP mode when smartd is started, then it won't respond to smartd commands, and so the disk won't be registered as a device for smartd to monitor. If a disk is in any other low-power mode, then the commands issued by smartd to register the disk will probably cause it to spin-up.
The '-n' (nocheck) Directive specifies if smartd's periodic checks should still be carried out when the device is in a low-power mode. It may be used to prevent a disk from being spun-up by periodic smartd polling. The allowed values of POWERMODE are:
never - smartd will poll (check) the device regardless of its power mode. This may cause a disk which is spun-down to be spun-up when smartd checks it. This is the default behavior if the '-n' Directive is not given.
sleep - check the device unless it is in SLEEP mode.
standby - check the device unless it is in SLEEP or STANDBY mode. In these modes most disks are not spinning, so if you want to prevent a laptop disk from spinning up each time that smartd polls, this is probably what you want.
idle - check the device unless it is in SLEEP, STANDBY or IDLE mode. In the IDLE state, most disks are still spinning, so this is probably not what you want.
When a periodic test is skipped, smartd normally writes an informal log message. The message can be suppressed by appending the option ',q' to POWERMODE (like '-n standby,q'). This prevents a laptop disk from spinning up due to this message.
normal - do not try to monitor the disk if a mandatory SMART command fails, but continue if an optional SMART command fails. This is the default.
permissive - try to monitor the disk even if it appears to lack SMART capabilities. This may be required for some old disks (prior to ATA-3 revision 4) that implemented SMART before the SMART standards were incorporated into the ATA/ATAPI Specifications. This may also be needed for some Maxtor disks which fail to comply with the ATA Specifications and don't properly indicate support for error- or self-test logging.
[Please see the smartctl -T command-line option.]
The delay between tests is vendor-specific, but is typically four hours.
Note that SMART Automatic Offline Testing is not part of the ATA Specification. Please see the smartctl -o command-line option documentation for further information about this feature.
error - report if the number of ATA errors reported in the ATA Error Log has increased since the last check.
selftest - report if the number of failed tests reported in the SMART Self-Test Log has increased since the last check, or if the timestamp associated with the most recent failed test has increased. Note that such errors will only be logged if you run self-tests on the disk (and it fails a test!). Self-Tests can be run automatically by smartd: please see the '-s' Directive below. Self-Tests can also be run manually by using the '-t short' and '-t long' options of smartctl and the results of the testing can be observed using the smartctl '-l selftest' command-line option.]
[Please see the smartctl -l and -t command-line options.]
To schedule a short Self-Test between 2-3am every morning, use:
-s S/../.././02To schedule a long Self-Test between 4-5am every Sunday morning, use:
-s L/../../7/04To schedule a long Self-Test between 10-11pm on the first and fifteenth day of each month, use:
-s L/../(01|15)/./22To schedule an Offline Immediate test after every midnight, 6am, noon,and 6pm, plus a Short Self-Test daily at 1-2am and a Long Self-Test every Saturday at 3-4am, use:
-s (O/../.././(00|06|12|18)|S/../.././01|L/../../6/03)
Scheduled tests are run immediately following the regularly-scheduled device polling, if the current local date, time, and test type, match REGEXP. By default the regularly-scheduled device polling occurs every thirty minutes after starting smartd. Take caution if you use the '-i' option to make this polling interval more than sixty minutes: the poll times may fail to coincide with any of the testing times that you have specified with REGEXP, and so the self tests may not take place as you wish.
Before running an offline or self-test, smartd checks to be sure that a self-test is not already running. If a self-test is already running, then this running self test will not be interrupted to begin another test.
smartd will not attempt to run any type of test if another test was already started or run in the same hour.
Each time a test is run, smartd will log an entry to SYSLOG. You can use these or the '-q showtests' command-line option to verify that you constructed REGEXP correctly. The matching order (L before S before C before O) ensures that if multiple test types are all scheduled for the same hour, the longer test type has precedence. This is usually the desired behavior.
Unix users: please beware that the rules for extended regular expressions [regex(7)] are not the same as the rules for file-name pattern matching by the shell [glob(7)]. smartd will issue harmless informational warning messages if it detects characters in REGEXP that appear to indicate that you have made this mistake.
To prevent your email in-box from getting filled up with warning messages, by default only a single warning will be sent for each of the enabled alert types, '-H', '-l', '-f', '-C', or '-O' even if more than one failure or error is detected or if the failure or error persists. [This behavior can be modified; see the '-M' Directive below.]
To send email to more than one user, please use the following "comma separated" form for the address: user1@add1,user2@add2,...,userN@addN (with no spaces).
To test that email is being sent correctly, use the '-M test' Directive described below to send one test email message on smartd startup.
By default, email is sent using the system mail command. In order that smartd find the mail command (normally /bin/mail) an executable named 'mail' must be in the path of the shell or environment from which smartd was started. If you wish to specify an explicit path to the mail executable (for example /usr/local/bin/mail) or a custom script to run, please use the '-M exec' Directive below.
Note that by default under Solaris, in the previous paragraph, 'mailx' and '/bin/mailx' are used, since Solaris '/bin/mail' does not accept a '-s' (Subject) command-line argument.
On Windows, the 'Blat' mailer (http://blat.sourceforge.net/) is used by default. This mailer uses a different command line syntax, see '-M exec' below.
Note also that there is a special argument <nomailer> which can be given to the '-m' Directive in conjunction with the '-M exec' Directive. Please see below for an explanation of its effect.
If the mailer or the shell running it produces any STDERR/STDOUT output, then a snippet of that output will be copied to SYSLOG. The remainder of the output is discarded. If problems are encountered in sending mail, this should help you to understand and fix them. If you have mail problems, we recommend running smartd in debug mode with the '-d' flag, using the '-M test' Directive described below.
The following extension is available on Windows: By specifying 'msgbox' as a mail address, a warning "email" is displayed as a message box on the screen. Using both 'msgbox' and regular mail addresses is possible, if 'msgbox' is the first word in the comma separated list. With 'sysmsgbox', a system modal (always on top) message box is used. If running as a service, a service notification message box (always shown on current visible desktop) is used.
Multiple -M Directives may be given. If more than one of the following three -M Directives are given (example: -M once -M daily) then the final one (in the example, -M daily) is used.
The valid arguments to the -M Directive are (one of the following three):
once - send only one warning email for each type of disk problem detected. This is the default.
daily - send additional warning reminder emails, once per day, for each type of disk problem detected.
diminishing - send additional warning reminder emails, after a one-day interval, then a two-day interval, then a four-day interval, and so on for each type of disk problem detected. Each interval is twice as long as the previous interval.
In addition, one may add zero or more of the following Directives:
test - send a single test email immediately upon smartd startup. This allows one to verify that email is delivered correctly.
exec PATH - run the executable PATH instead of the default mail command, when smartd needs to send email. PATH must point to an executable binary file or script.
By setting PATH to point to a customized script, you can make smartd perform useful tricks when a disk problem is detected (beeping the console, shutting down the machine, broadcasting warnings to all logged-in users, etc.) But please be careful. smartd will block until the executable PATH returns, so if your executable hangs, then smartd will also hang. Some sample scripts are included in /usr/share/doc/smartmontools-5.36/examplescripts/.
The return status of the executable is recorded by smartd in SYSLOG. The executable is not expected to write to STDOUT or STDERR. If it does, then this is interpreted as indicating that something is going wrong with your executable, and a fragment of this output is logged to SYSLOG to help you to understand the problem. Normally, if you wish to leave some record behind, the executable should send mail or write to a file or device.
Before running the executable, smartd sets a number of environment variables. These environment variables may be used to control the executable's behavior. The environment variables exported by smartd are:
EmailTest: this is an email test message.
Health: the SMART health status indicates imminent failure.
Usage: a usage Attribute has failed.
SelfTest: the number of self-test failures has increased.
ErrorCount: the number of errors in the ATA error log has increased.
CurrentPendingSector: one of more disk sectors could not be read and are marked to be reallocated (replaced with spare sectors).
OfflineUncorrectableSector: during off-line testing, or self-testing, one or more disk sectors could not be read.
FailedHealthCheck: the SMART health status command failed.
FailedReadSmartData: the command to read SMART Attribute data failed.
FailedReadSmartErrorLog: the command to read the SMART error log failed.
FailedReadSmartSelfTestLog: the command to read the SMART self-test log failed.
FailedOpenDevice: the open() command to the device failed.
Sun Feb 9 14:58:19 2003 CST
If the '-m ADD' Directive is given with a normal address argument, then the executable pointed to by PATH will be run in a shell with STDIN receiving the body of the email message, and with the same command-line arguments:
-s "$SMARTD_SUBJECT" $SMARTD_ADDRESSthat would normally be provided to 'mail'. Examples include:
-m user@home -M exec /bin/mail -m admin@work -M exec /usr/local/bin/mailto -m root -M exec /Example_1/bash/script/below
Note that on Windows, the syntax of the 'Blat' mailer is used:
- -q -subject "$SMARTD_SUBJECT" -to "$SMARTD_ADDRESS"
If the '-m ADD' Directive is given with the special address argument <nomailer> then the executable pointed to by PATH is run in a shell with no STDIN and no command-line arguments, for example:
-m <nomailer> -M exec /Example_2/bash/script/belowIf the executable produces any STDERR/STDOUT output, then smartd assumes that something is going wrong, and a snippet of that output will be copied to SYSLOG. The remainder of the output is then discarded.
Some EXAMPLES of scripts that can be used with the '-M exec' Directive are given below. Some sample scripts are also included in /usr/share/doc/smartmontools-5.36/examplescripts/.
This is useful, for example, if you have a very old disk and don't want to keep getting messages about the hours-on-lifetime Attribute (usually Attribute 9) failing. This Directive may appear multiple times for a single device, if you want to ignore multiple Attributes.
This is useful, for example, if one of the device Attributes is the disk temperature (usually Attribute 194 or 231). It's annoying to get reports each time the temperature changes. This Directive may appear multiple times for a single device, if you want to ignore multiple Attributes.
A common use of this Directive is to track the device Temperature (often ID=194 or 231).
If this Directive is given, it automatically implies the '-r' Directive for the same Attribute, so that the Raw value of the Attribute is reported.
A common use of this Directive is to track the device Temperature (often ID=194 or 231). It is also useful for understanding how different types of system behavior affects the values of certain Attributes.
A pending sector is a disk sector (containing 512 bytes of your data) which the device would like to mark as ``bad" and reallocate. Typically this is because your computer tried to read that sector, and the read failed because the data on it has been corrupted and has inconsistent Error Checking and Correction (ECC) codes. This is important to know, because it means that there is some unreadable data on the disk. The problem of figuring out what file this data belongs to is operating system and file system specific. You can typically force the sector to reallocate by writing to it (translation: make the device substitute a spare good sector for the bad one) but at the price of losing the 512 bytes of data stored there.
An offline uncorrectable sector is a disk sector which was not readable during an off-line scan or a self-test. This is important to know, because if you have data stored in this disk sector, and you need to read it, the read will fail. Please see the previous '-C' option for more details.
none - Assume that the device firmware obeys the ATA specifications. This is the default, unless the device has presets for '-F' in the device database.
samsung - In some Samsung disks (example: model SV4012H Firmware Version: RM100-08) some of the two- and four-byte quantities in the SMART data structures are byte-swapped (relative to the ATA specification). Enabling this option tells smartd to evaluate these quantities in byte-reversed order. Some signs that your disk needs this option are (1) no self-test log printed, even though you have run self-tests; (2) very large numbers of ATA errors reported in the ATA error log; (3) strange and impossible values for the ATA error log timestamps.
samsung2 - In more recent Samsung disks (firmware revisions ending in "-23") the number of ATA errors reported is byte swapped. Enabling this option tells smartd to evaluate this quantity in byte-reversed order.
Note that an explicit '-F' Directive will over-ride any preset values for '-F' (see the '-P' option below).
[Please see the smartctl -F command-line option.]
This Directive may appear multiple times. Valid arguments to this Directive are:
9,minutes - Raw Attribute number 9 is power-on time in minutes. Its raw value will be displayed in the form 'Xh+Ym'. Here X is hours, and Y is minutes in the range 0-59 inclusive. Y is always printed with two digits, for example '06' or '31' or '00'.
9,seconds - Raw Attribute number 9 is power-on time in seconds. Its raw value will be displayed in the form 'Xh+Ym+Zs'. Here X is hours, Y is minutes in the range 0-59 inclusive, and Z is seconds in the range 0-59 inclusive. Y and Z are always printed with two digits, for example '06' or '31' or '00'.
9,halfminutes - Raw Attribute number 9 is power-on time, measured in units of 30 seconds. This format is used by some Samsung disks. Its raw value will be displayed in the form 'Xh+Ym'. Here X is hours, and Y is minutes in the range 0-59 inclusive. Y is always printed with two digits, for example '06' or '31' or '00'.
9,temp - Raw Attribute number 9 is the disk temperature in Celsius.
192,emergencyretractcyclect - Raw Attribute number 192 is the Emergency Retract Cycle Count.
193,loadunload - Raw Attribute number 193 contains two values. The first is the number of load cycles. The second is the number of unload cycles. The difference between these two values is the number of times that the drive was unexpectedly powered off (also called an emergency unload). As a rule of thumb, the mechanical stress created by one emergency unload is equivalent to that created by one hundred normal unloads.
194,10xCelsius - Raw Attribute number 194 is ten times the disk temperature in Celsius. This is used by some Samsung disks (example: model SV1204H with RK100-13 firmware).
194,unknown - Raw Attribute number 194 is NOT the disk temperature, and its interpretation is unknown. This is primarily useful for the -P (presets) Directive.
198,offlinescanuncsectorct - Raw Attribute number 198 is the Offline Scan UNC Sector Count.
200,writeerrorcount - Raw Attribute number 200 is the Write Error Count.
201,detectedtacount - Raw Attribute number 201 is the Detected TA Count.
220,temp - Raw Attribute number 220 is the disk temperature in Celsius.
Note: a table of hard drive models, listing which Attribute corresponds to temperature, can be found at: http://www.guzu.net/linux/hddtemp.db
N,raw8 - Print the Raw value of Attribute N as six 8-bit unsigned base-10 integers. This may be useful for decoding the meaning of the Raw value. The form 'N,raw8' prints Raw values for ALL Attributes in this form. The form (for example) '123,raw8' only prints the Raw value for Attribute 123 in this form.
N,raw16 - Print the Raw value of Attribute N as three 16-bit unsigned base-10 integers. This may be useful for decoding the meaning of the Raw value. The form 'N,raw16' prints Raw values for ALL Attributes in this form. The form (for example) '123,raw16' only prints the Raw value for Attribute 123 in this form.
N,raw48 - Print the Raw value of Attribute N as a 48-bit unsigned base-10 integer. This may be useful for decoding the meaning of the Raw value. The form 'N,raw48' prints Raw values for ALL Attributes in this form. The form (for example) '123,raw48' only prints the Raw value for Attribute 123 in this form.
use - use any presets that are available for this drive. This is the default.
ignore - do not use any presets for this drive.
show - show the presets listed for this drive in the database.
showall - show the presets that are available for all drives and then exit.
[Please see the smartctl -P command-line option.]
Note that -a is the default for ATA devices. If none of these other Directives is given, then -a is assumed.
If you are not sure which Directives to use, I suggest experimenting for a few minutes with smartctl to see what SMART functionality your disk(s) support(s). If you do not like voluminous syslog messages, a good choice of smartd configuration file Directives might be:
-H -l selftest -l error -f.If you want more frequent information, use: -a.
If DEVICESCAN is not followed by any Directives, then smartd will scan for both ATA and SCSI devices, and will monitor all possible SMART properties of any devices that are found.
DEVICESCAN may optionally be followed by any valid Directives, which will be applied to all devices that are found in the scan. For example
DEVICESCAN -m root@example.comwill scan for all devices, and then monitor them. It will send one email warning per device for any problems that are found.
DEVICESCAN -d ata -m root@example.comwill do the same, but restricts the scan to ATA devices only.
DEVICESCAN -H -d ata -m root@example.comwill do the same, but only monitors the SMART health status of the devices, (rather than the default -a, which monitors all SMART properties).
Example 1: This script is for use with '-m ADDRESS -M exec PATH'. It appends the output of smartctl -a to the output of the smartd email warning message and sends it to ADDRESS.
#! /bin/bash # Save the email message (STDIN) to a file: cat > /root/msg # Append the output of smartctl -a to the message: /usr/sbin/smartctl -a -d $SMART_DEVICETYPE $SMARTD_DEVICE >> /root/msg # Now email the message to the user at address ADD: /bin/mail -s "$SMARTD_SUBJECT" $SMARTD_ADDRESS < /root/msg
Example 2: This script is for use with '-m <nomailer> -M exec PATH'. It warns all users about a disk problem, waits 30 seconds, and then powers down the machine.
#! /bin/bash # Warn all users of a problem wall 'Problem detected with disk: ' "$SMARTD_DEVICESTRING" wall 'Warning message from smartd is: ' "$SMARTD_MESSAGE" wall 'Shutting down machine in 30 seconds... ' # Wait half a minute sleep 30 # Power down the machine /sbin/shutdown -hf now
Some example scripts are distributed with the smartmontools package, in /usr/share/doc/smartmontools-5.36/examplescripts/.
Please note that these scripts typically run as root, so any files that they read/write should not be writable by ordinary users or reside in directories like /tmp that are writable by ordinary users and may expose your system to symlink attacks.
As previously described, if the scripts write to STDOUT or STDERR, this is interpreted as indicating that there was an internal error within the script, and a snippet of STDOUT/STDERR is logged to SYSLOG. The remainder is flushed.
Casper Dik (Solaris SCSI interface) Christian Franke (Windows interface and Cygwin package) Douglas Gilbert (SCSI subsystem) Guido Guenther (Autoconf/Automake packaging) Geoffrey Keating (Darwin ATA interface) Eduard Martinescu (FreeBSD interface) Frederic L. W. Meunier (Web site and Mailing list) Keiji Sawada (Solaris ATA interface) Sergey Svishchev (NetBSD interface) David Snyder and Sergey Svishchev (OpenBSD interface) Phil Williams (User interface and drive database)Many other individuals have made smaller contributions and corrections.
http://smartmontools.sourceforge.net/
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