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From "Animesh Chaturvedi (JIRA)" <>
Subject [jira] [Updated] (CLOUDSTACK-4527) Extend support of CloudStack-managed storage to KVM
Date Mon, 21 Oct 2013 21:46:56 GMT


Animesh Chaturvedi updated CLOUDSTACK-4527:

ACS 4.3 feature freeze date is November 8th. Please provide update on your items as a comment.

> Extend support of CloudStack-managed storage to KVM
> ---------------------------------------------------
>                 Key: CLOUDSTACK-4527
>                 URL:
>             Project: CloudStack
>          Issue Type: New Feature
>      Security Level: Public(Anyone can view this level - this is the default.) 
>          Components: KVM
>    Affects Versions: 4.3.0
>            Reporter: Mike Tutkowski
>            Assignee: Mike Tutkowski
>             Fix For: 4.3.0
> From Review Request 13865:
> This patch is part two of the SolidFire plug-in. Part one is described in Review Request
11479 and was implemented in CS 4.2.
> The focus of this patch is to support a one-to-one mapping between a CloudStack volume
and a SolidFire volume when using KVM.
> The hypervisor plug-ins were initially developed to expect storage was preallocated from
a storage device. In 4.2, with the storage plug-in framework, this model has changed to additionally
support Primary Storage representing a storage device itself (ex. a SAN) as opposed to it
having to represent preallocated storage (ex. a volume from a SAN).
> In the new model, Primary Storage can represent a SAN like SolidFire's. When a CloudStack
volume is attached to a VM for the first time, the storage framework asks the storage plug-in
to execute some logic. In the SolidFire case, this is where a volume is created on the SolidFire
> In CS 4.2, I created the SolidFire plug-in and modified necessary parts of the storage
framework as well as XenServer and VMware plug-in logic to enable a one-to-one mapping between
a CS volume and a SolidFire volume when using XenServer and ESX(i).
> This patch aims to extend this support to KVM.
> Support is offered in the form of Disk Offerings (not Compute Offerings).

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