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  1. OpenShift Bugs
  2. OCPBUGS-39515

[release-4.17] LVMS thin pool used size percent configuration should allow values over 90%

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      Previously, LVM Storage prevented allocating more than 90% of a disk’s size to the thin pool. This fix removes the limitation, allowing disk allocation above 90% to the thin pool. This fix also introduces warnings to alert users about potential risks when using this configuration.
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      Previously, LVM Storage prevented allocating more than 90% of a disk’s size to the thin pool. This fix removes the limitation, allowing disk allocation above 90% to the thin pool. This fix also introduces warnings to alert users about potential risks when using this configuration.
    • Bug Fix
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      This is an LVMS Bug Report:

      Please create & attach a must-gather as indicated by this Guide to collect LVMS relevant data from the Cluster (linked to the latest version, use older versions of the documentation for older OCP releases as applicable

      Please make sure that you describe your storage configuration in detail. List all devices that you plan to work with for LVMS as well as any relevant machine configuration data to make it easier for an engineer to help out.

      Description of problem:
      https://github.com/openshift/lvm-operator/blob/b436027b9f40536b4c0cf6533c04e5690c35b8cf/api/v1alpha1/lvmcluster_types.go#L47 contains only a limitation to 90% of disk usage for the thin pool but it should be possible (with warnings) to go higher than this
      Version-Release number of selected component (if applicable):

      4.17.0 and below

      Steps to Reproduce:

      1. Create LVMCluster with thinPoolConfig, but adjust the sizePercent spec field to a value above 90, like 100 or 95

      Actual results:

      spec.storage.deviceClasses[0].thinPoolConfig.sizePercent in body should be less than or equal to 90" for field "spec.storage.deviceClasses[0].thinPoolConfig.sizePercent

      Expected results:

      Success

      Additional info:

              rh-ee-jmoller Jakob Moeller (Inactive)
              bmarson@redhat.com Barry Marson
              Rahul Deore Rahul Deore
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