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https://issues.apache.org/jira/browse/CLOUDSTACK-3808?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13796688#comment-13796688
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Koushik Das commented on CLOUDSTACK-3808:
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If the VM can access the data disk then that scenario should be allowed
- if the root disk is at zone scope and the data disk is on the same host as
the vm instance then attache should be allowed
- if the root disk is at zone scope and the data disk is at cluster scope then
attach should be allowed if the vm and the data disk are in same cluster.
> Attach volume should work when root is at zone level primary store and data
> at cluster level or host level store
> ----------------------------------------------------------------------------------------------------------------
>
> Key: CLOUDSTACK-3808
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-3808
> Project: CloudStack
> Issue Type: Bug
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Components: Storage Controller
> Affects Versions: 4.2.0
> Reporter: Koushik Das
> Assignee: Devdeep Singh
> Priority: Critical
> Fix For: 4.2.1
>
>
> There are new scenarios that needs to be handled with the introduction of
> zone-wide primary store.
> - root (zone scope) + data (cluster scope)
> - root (zone scope) + data (host scope)
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