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https://issues.apache.org/jira/browse/CLOUDSTACK-8239?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15976423#comment-15976423
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ASF subversion and git services commented on CLOUDSTACK-8239:
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Commit 5c476492b109b0179c9a0903e04efe26c3daf928 in cloudstack's branch
refs/heads/master from [~nathanejohnson]
[ https://gitbox.apache.org/repos/asf?p=cloudstack.git;h=5c47649 ]
CLOUDSTACK-8239 - Adding support for virtio-scsi on KVM hosts
This adds support for virtio-scsi on KVM hosts, either
for guests that are associated with a new os_type of 'Other PV Virtio-SCSI
(64-bit)',
or when a VM or template is regstered with a detail parameter
rootDiskController=scsi.
Update cloudstack add template dialog to allow for selecting rootDiskController
with KVM
Update cloudstack kvm virtio-scsi to enable discard=unmap
> Add support for VirtIO-SCSI for KVM hypervisors
> -----------------------------------------------
>
> Key: CLOUDSTACK-8239
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-8239
> Project: CloudStack
> Issue Type: New Feature
> Components: KVM, Storage Controller
> Affects Versions: 4.6.0
> Environment: KVM
> Reporter: Andrei Mikhailovsky
> Assignee: Wido den Hollander
> Priority: Critical
> Labels: ceph, gsoc2017, kvm, libvirt, rbd, storage_drivers,
> virtio
> Fix For: Future
>
>
> It would be nice to have support for virtio-scsi for KVM hypervisors.
> The reason for using virtio-scsi instead of virtio-blk would be increasing
> the number of devices you can attach to a vm, have ability to use discard and
> reclaim unused blocks from the backend storage like ceph rbd. There are also
> talks about having a greater performance advantage as well.
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