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https://issues.apache.org/jira/browse/CLOUDSTACK-1191?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13666336#comment-13666336
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ASF subversion and git services commented on CLOUDSTACK-1191:
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Commit bef3a2edb7f23035a7d397d2d68caf6cecc0f497 in branch refs/heads/master
from Wido den Hollander <[email protected]>
[ https://git-wip-us.apache.org/repos/asf?p=cloudstack.git;h=bef3a2e ]
CLOUDSTACK-1191: rbd: Use cloning for deploying templates instead of a copy
RBD format 2 supports cloning (aka layering) where one base image can serve
as a parent image for multiple child images.
This enables fast deployment of a large amount of virtual machines, but it also
saves spaces on the Ceph cluster and improves performance due to better caching.
Qemu-img doesn't support RBD format 2 (yet), so to enable these functions the
RADOS/RBD Java bindings are required.
This patch also enables deployment of System VMs on RBD storage pools. Since we
no longer require a patchdisk for passing the boot arguments we are able to
deploy
these VMs on RBD.
> Implement RBD snapshotting, backups and cloning
> -----------------------------------------------
>
> Key: CLOUDSTACK-1191
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-1191
> Project: CloudStack
> Issue Type: Improvement
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Components: KVM, Snapshot, Storage Controller, Volumes
> Affects Versions: 4.2.0
> Reporter: Wido den Hollander
> Assignee: Wido den Hollander
> Labels: ceph, kvm, libvirt, rbd
> Fix For: 4.2.0
>
>
> The current RBD implementation lacks these features.
> The new storage subsystem will allow us to implement these features as
> described on the wiki:
> https://cwiki.apache.org/confluence/display/CLOUDSTACK/RBD+improvements+based+on+new+Storage+subsystem
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