Filesystem Troubleshooting
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Video Transcription
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>> Hello Cybrarians, and welcome back to
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the Linux plus course here at Cybrary.
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I'm your instructor, Rob Goelz.
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In today's lesson, we're going to be
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discussing File System Troubleshooting.
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Upon completion of today's lesson,
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you'll be able to understand
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the filesystem troubleshooting
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commands that we could use, iostat and fsck.
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Now, the iostat command is used to
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gather statistics on devices.
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We can use it to troubleshoot performance
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of a disk or of a partition.
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This command can be run on
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>> both ext and xfs filesystems.
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>> We'll come back to this command later in
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much greater depth later in the course.
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The fsck command is used to
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>> uncover filesystem problems,
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>> but it can only be used on
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unmounted file systems and ext filesystems.
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If we're trying to run a repair on an xfs filesystem,
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we're going to use that xfs_repair command instead,
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and recall that we covered that in the previous lesson.
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Now if you look on the right-hand side,
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you can see that we're successfully able to run
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an fsck against /dev/sdb1,
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which is ext4 filesystem that we have on CentOS 8.
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But if we try to run that fsck on
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/dev/sdc1, it gives us an error.
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It says that if we want to check
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the consistency of that file system,
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we have to use xfs_repair.
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With that, we've reached the end of this lesson.
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In this lesson, we covered
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the iostat command and the fsck command.
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Thanks so much for being here,
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>> and I look forward to seeing you in the next lesson.
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