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Posted to issues@ozone.apache.org by "Ivan Andika (Jira)" <ji...@apache.org> on 2026/09/11 01:41:00 UTC
[jira] [Resolved] (HDDS-15872) Ozone Bucket Support StoragePolicy and allowFallbackStoragePolicy
[ https://issues.apache.org/jira/browse/HDDS-15872?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ivan Andika resolved HDDS-15872.
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Fix Version/s: 2.3.0
Resolution: Implemented
> Ozone Bucket Support StoragePolicy and allowFallbackStoragePolicy
> -----------------------------------------------------------------
>
> Key: HDDS-15872
> URL: https://issues.apache.org/jira/browse/HDDS-15872
> Project: Apache Ozone
> Issue Type: Sub-task
> Reporter: Devesh Kumar Singh
> Assignee: Devesh Kumar Singh
> Priority: Major
> Labels: pull-request-available
> Fix For: 2.3.0
>
>
> Adds storagePolicy and allowFallbackStoragePolicy as new optional fields on Ozone buckets, alongside the existing storageType. This enables a bucket to declare which OzoneStoragePolicy (HOT/WARM/COLD) its blocks should use, and whether block allocation is allowed to fall back to the policy's secondary tier when the primary tier has no capacity.
>
> The existing per-bucket StorageType attribute is a coarse-grained concept. StoragePolicy provides a richer model: it bundles a creation tier (e.g. SSD for HOT) with a fallback tier (e.g. DISK), allowing intelligent data placement and graceful degradation when a preferred storage tier is full. This change lays the data-model foundation for subsequent patches that thread StoragePolicy through
> key creation and block allocation.
>
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