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Add additional disk checks to monitoring
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In T9794 the hdd storage volume on cloud12 exhausted which caused the filesystem of gluster122 to corrupt causing an outage. This should have been detected much sooner than it was.

I propose adding monitoring to the cloud* volumes and adding an icinga alert for read-only filesystems.

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Void triaged this task as Normal priority.Oct 17 2022, 23:13
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Disks aren't exposed to the OS which makes monitoring them difficult within Icinga. I've tried a PVE monitoring check and it doesn't seem to work and I can't find any other replacements.

Long term the two big fixes are:

  • ensure disk space is allocated correctly
  • use LVM not LVM Thinpools for disk storage