Description of problem (please be detailed as possible and provide log
snippests):

The document which has been provided as part of BZ-2256725 need corrections. This main use case of this doc is for adding memory to the MDS pod whenever the alert MDSCacheUsageHigh seen.

Link to the doc:
https://github.com/openshift/runbooks/blob/master/alerts/openshift-container-storage-operator/CephMdsCacheUsageHigh.md

Version of all relevant components (if applicable):

Does this issue impact your ability to continue to work with the product
(please explain in detail what is the user impact)?

Is there any workaround available to the best of your knowledge?

Rate from 1 - 5 the complexity of the scenario you performed that caused this
bug (1 - very simple, 5 - very complex)?

1
Can this issue reproducible?
1

Can this issue reproduce from the UI?

If this is a regression, please provide more details to justify this:

Steps to Reproduce:
1.Maintain the MDS CPU load to reach 95% of the cache limit.

2. MDSCacheHighUsage alert will be triggered in the dashboard.

3. Go to the alert and click on the document linked to the alert.

4. The document need to be more clear in sections "Impact" & "Mitigation".

Actual results:
Document has the steps to apply default memory in MDS pod

Expected results:
Document should have steps to Increase MDS pod memory from default to recommended based on the alert.

Please refer attachment for more information.

Additional info: