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https://issues.apache.org/jira/browse/BOOKKEEPER-201?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13267356#comment-13267356
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Uma Maheswara Rao G commented on BOOKKEEPER-201:
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What if Bookie restarts? It may consider back again right. operator can not 
remove that disk from config as there might be some data written already. Am I 
missing?
                
> Interface to remove slow disks
> ------------------------------
>
>                 Key: BOOKKEEPER-201
>                 URL: https://issues.apache.org/jira/browse/BOOKKEEPER-201
>             Project: Bookkeeper
>          Issue Type: Improvement
>            Reporter: Flavio Junqueira
>
> As per a conversation with Ivan and Ben, we propose an interface that enables 
> an operator to make a bookie disk inactive. The general idea is that if a 
> bookie has multiple ledger disks and one is continuously underperforming, 
> then we would like to tell the bookie to stop creating ledgers on that disk. 
> Eventually the bookie stops using that disk.

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