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https://issues.apache.org/jira/browse/CLOUDSTACK-4557?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13766447#comment-13766447
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Wido den Hollander commented on CLOUDSTACK-4557:
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No, there are no parameters for this. It simply has to copy the whole template
from Secondary Storage to RBD, that takes a lot of time.
A performance improvement could be a one step QCOW2 -> RBD copy, but I haven't
found a a way to do this yet.
> ceph:Performance:first time operstions taking more time
> -------------------------------------------------------
>
> Key: CLOUDSTACK-4557
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-4557
> Project: CloudStack
> Issue Type: Bug
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Components: Management Server
> Affects Versions: 4.2.0
> Reporter: sadhu suresh
>
> Its taking more time to deploy a first vm on rbd based primary storage
> when compared to VM deployment on NFS based storage. In our environment its
> taking more than 7 mins.[our observation is first time operations are taking
> more time ],like first t time vm deployment/snapshot/attach operations.
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