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https://issues.apache.org/jira/browse/HDFS-15548?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17192092#comment-17192092
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jianghua zhu commented on HDFS-15548:
-------------------------------------

This suggestion sounds good, but there are many things to consider about how to 
implement it.

> Allow configuring DISK/ARCHIVE storage types on same device mount
> -----------------------------------------------------------------
>
>                 Key: HDFS-15548
>                 URL: https://issues.apache.org/jira/browse/HDFS-15548
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: datanode
>            Reporter: Leon Gao
>            Assignee: Leon Gao
>            Priority: Major
>
> We can allow configuring DISK/ARCHIVE storage types on the same device mount 
> on two separate directories.
> Users should be able to configure the capacity for each. Also, the datanode 
> usage report should report stats correctly.



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