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https://issues.apache.org/jira/browse/HDFS-5682?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14071358#comment-14071358
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Vinayakumar B commented on HDFS-5682:
-------------------------------------

Hi [~neetagarimella], Most part of this feature is being implemented as part of 
HDFS-6584 ( Archival Storage Support ). 
You can take a look at it.
Thanks

> Heterogeneous Storage phase 2 - APIs to expose Storage Types
> ------------------------------------------------------------
>
>                 Key: HDFS-5682
>                 URL: https://issues.apache.org/jira/browse/HDFS-5682
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: datanode, namenode
>            Reporter: Arpit Agarwal
>            Assignee: Arpit Agarwal
>         Attachments: 20140522-Heterogeneous-Storages-API.pdf
>
>
> Phase 1 (HDFS-2832) added support to present the DataNode as a collection of 
> discrete storages of different types.
> This Jira is to track phase 2 of the Heterogeneous Storage work which 
> involves exposing Storage Types to applications and adding Quota Management 
> support for administrators.
> This phase will also include tools support for administrators/users.



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