Detect Hard Drive Failure in Linux Using S.M.A.R.T.
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Detect Hard Drive Failure in Linux using S.M.A.R.T. - Informatica Pressapochista
start by taking a look at smartctl.
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ask to the device to report its S.M.A.R.T. health status using H option.
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S.M.A.R.T. status is based on information that it has gathered from online and offline tests, which were used to determine/update its SMART vendor-specific attribute values
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using c option, that it is intended to print the disk’s capabilities and the estimated time to perform short and long disk self-tests (we will see in the next). #smartctl -c /dev/sda
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possibile to run two types of self-tests, short and long. These can be run with the the following commands. smartctl -t short /dev/sda smartctl -t long /dev/sda
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the end we can get the result with the a option.
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Some disk support automatic off-line testing, enabled by the following command. smartctl -o on /dev/<device
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This command enable an automatically off-line test every few hours
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he Offline-test do not corrupt data on the disk and do not interfere with the normal functioning of the disk, so you can enable this kind of test on a running system
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control and fine-tune the behavior of smartd using the configuration file /etc/smartd.conf
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Consider the regular replacement of 3 year old disks.
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