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https://issues.apache.org/jira/browse/HDDS-16986?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Siyao Meng updated HDDS-16986:
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Parent: HDDS-13003
Issue Type: Sub-task (was: Task)
> [Docs] Add snapshot defragmentation user guide
> ----------------------------------------------
>
> Key: HDDS-16986
> URL: https://issues.apache.org/jira/browse/HDDS-16986
> Project: Apache Ozone
> Issue Type: Sub-task
> Reporter: Siyao Meng
> Assignee: Siyao Meng
> Priority: Major
>
> The snapshot documentation explains the design and system internals of
> snapshot defragmentation, but does not provide an operational user guide for
> enabling and using the feature.
> Add user instructions covering:
> * Prerequisites, including upgrade finalization, native rocks-tools
> availability, and administrator access for manual triggers.
> * The defragmentation configuration keys and their current defaults, with an
> example of enabling periodic runs on each OM.
> * Manual triggering with ozone admin om snapshot defrag, including HA
> service/node selection, --no-wait, and the per-task snapshot limit.
> * Monitoring successful processing and failures through OM logs and snapshot
> metrics, and troubleshooting a disabled or unavailable service.
> * The scope of space savings (OM snapshot metadata), temporary disk usage,
> and unchanged snapshot data access.
> Link the guide from the snapshot documentation and retain the existing design
> document. HDDS-15113 and HDDS-15105 cover the existing system
> internals/design documentation; this task covers operational usage.
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