Operating Systems

check_disk_write.pl (Advanced Nagios Plugins Collection)

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Description:

Checks a disk is writable and functioning properly by writing a tiny canary file with unique generated contents and then reading it back to make sure it was written properly.

Useful to detect I/O errors and disks that have been re-mounted read-only as often happens when I/O errors in the disk subsystem are detected by the kernel.

Current Version

Last Release Date

December 9, 2013

Compatible With

  • Nagios 1.x
  • Nagios 2.x
  • Nagios 3.x
  • Nagios XI

Owner

Hari Sekhon

Website

https://github.com/harisekhon/nagios-plugins

Download URL

https://github.com/harisekhon/nagios-plugins

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Project Notes
Part of the Advanced Nagios Plugins Collection. Download it here: https://github.com/harisekhon/nagios-plugins ./check_disk_write.pl -d /tmp OK: canary file I/O written => read back 51 bytes successfully in /tmp, unique contents verified ./check_disk_write.pl --help usage: check_disk_write.pl [ options ] -d --directory Directory to write the canary file to. Set this to a directory on the mount point of the disk you want to check -t --timeout Timeout in secs (default: 10) -v --verbose Verbose mode (-v, -vv, -vvv ...) -h --help Print description and usage options -V --version Print version and exit
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