r/storage_class - add validations

[DrFaust92]

Description

Acceptance tests

• Have you added an acceptance test for the functionality being added?
• Have you run the acceptance tests on this branch?

Output from acceptance testing:

$ make testacc TESTARGS='-run=TestAccXXX'

...

Release Note

Release note for CHANGELOG:

...

References

Community Note

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• If you are interested in working on this issue or have submitted a pull request, please leave a comment

[alexsomesan]

Nice, thanks @DrFaust92 !

[github-actions]

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