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https://issues.apache.org/jira/browse/CLOUDSTACK-6191?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13918330#comment-13918330
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Yoshikazu Nojima commented on CLOUDSTACK-6191:
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To be the best of my knowledge, only qcow2 distinguishes "thin" and "sparse",
but most of the hypervisors distinguish "thin" and "fat". Anyway, as you
indicated, it's best implemented as a disk offering parameter. I updated the
design doc. Thanks!
> Volume provisioning type option
> -------------------------------
>
> Key: CLOUDSTACK-6191
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-6191
> Project: CloudStack
> Issue Type: Improvement
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Components: KVM, Management Server
> Reporter: Yoshikazu Nojima
> Assignee: Yoshikazu Nojima
> Priority: Minor
> Fix For: Future
>
>
> Thin provisioning of a volume saves consumption of a storage, and fat
> provisioning minimizes IOPS performance overhead.
> This feature implements a global setting to provide users an option to select
> how to provision volumes.
> Design doc:
> https://cwiki.apache.org/confluence/display/CLOUDSTACK/Volume+provisioning+type+option
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