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https://issues.apache.org/jira/browse/HDDS-7852?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17707135#comment-17707135
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Nandakumar commented on HDDS-7852:
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Thanks [~NeilJoshi] for your interest. I'm linking the design doc which is
still in draft state.
> SCM Decommissioning Support
> ---------------------------
>
> Key: HDDS-7852
> URL: https://issues.apache.org/jira/browse/HDDS-7852
> Project: Apache Ozone
> Issue Type: New Feature
> Components: SCM
> Affects Versions: 1.3.0
> Reporter: Nandakumar
> Assignee: Nandakumar
> Priority: Major
>
> SCM decommissioning is the process in which we gracefully remove one of the
> SCM from the SCM HA Ring. We will also have the option to remove SCM from the
> HA Ring forcefully.
> Decommissioning will be needed in the following scenarios,
> For maintenance and upgrade
> * In case of Disk failure
> * In case of Node failure
> The main areas to consider while performing SCM decommissioning,
> * Ratis Layer
> * Security Layer
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