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: