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From "Mike Tutkowski (JIRA)" <>
Subject [jira] [Updated] (CLOUDSTACK-8341) GSoC 2015
Date Mon, 23 Mar 2015 17:15:11 GMT


Mike Tutkowski updated CLOUDSTACK-8341:
    Assignee: Seif Eddine Jemli

> GSoC 2015
> ---------
>                 Key: CLOUDSTACK-8341
>                 URL:
>             Project: CloudStack
>          Issue Type: Improvement
>      Security Level: Public(Anyone can view this level - this is the default.) 
>          Components: Management Server, VMware
>    Affects Versions: Future, 4.6.0
>         Environment: All OSes the CloudStack Management Server is expected to run on.
>            Reporter: Mike Tutkowski
>            Assignee: Seif Eddine Jemli
>             Fix For: Future, 4.6.0
> ACS users could benefit from the ability to take snapshots (for managed storage) that
reside on primary storage (instead of backups that reside on secondary storage).
> Benefits could include the following:
> * Fast snapshots instead of slower backups
> * Make use of compression, de-duplication, and thin provisioning that may be supported
on the primary storage
> Some work has already been done with regards to this topic using the XenServer hypervisor.
However, that hypervisor currently has restrictions around immutable UUIDs on its SRs and
VDIs that effectively limit the value proposition of backend snapshots.
> Let's target VMware for this feature as it has the ability to resignature its datastores
and thus make effective use of backend snapshots of datastores.
> Related:
> This work may entail modifying components in the management server that expect snapshots
to only reside on secondary storage.
> In addition, the VMware agent code will need to be updated.
> Also, a custom snapshot strategy and a custom data motion strategy will either need to
be created (or the code will have to be placed inside of an existing snapshot strategy and
data motion strategy).
> Once the snapshots can be created on primary storage, we need to make sure we can create
volumes and templates from them.

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