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From Nitin Mehta <Nitin.Me...@citrix.com>
Subject Re: [DISCUSS] Enabling storage xenmotion on xenserver 6.1
Date Wed, 19 Dec 2012 15:36:37 GMT
+1

Would this be available for system vms (ssvm, cpvm and rvm ) as well ? 

Thanks,
-Nitin

On 19-Dec-2012, at 2:33 PM, Devdeep Singh wrote:

> Hi Alex,
> 
> I was planning to cover the following scenarios:
> 1. Live migrate a VM with disks from Host A to Host B within the same cluster. This currently
works with shared storage. I was thinking of extending it to support local storage too.
> 2. Live migrate a VM from Host A to Host B across cluster. VM's disks also move from
one storage repository to another.
> 3. Live migrate a VM's disks from one storage repository to another, but VM stays in
the same host. I didn't make it clear in my earlier mail, sorry about that. Should it be a
separate jira ticket?
> 
> For each of them the disk offerings for each disk should be honored. That is, if a disk
is using shared storage it should be moved to a shared SR. Same applies to disks using local
storage too.
> 
> Regards,
> Devdeep
> 
>> -----Original Message-----
>> From: Alex Huang [mailto:Alex.Huang@citrix.com]
>> Sent: Wednesday, December 19, 2012 4:56 AM
>> To: cloudstack-dev@incubator.apache.org
>> Subject: RE: [DISCUSS] Enabling storage xenmotion on xenserver 6.1
>> 
>> Devdeep,
>> 
>> It sounds like from this that all you're doing is the ability to live migrate vms
>> from one cluster to another cluster.
>> 
>> Is there anything on storage migration itself?
>> 
>> --Alex
>> 
>>> -----Original Message-----
>>> From: Devdeep Singh [mailto:devdeep.singh@citrix.com]
>>> Sent: Tuesday, December 18, 2012 12:40 AM
>>> To: cloudstack-dev@incubator.apache.org
>>> Subject: [DISCUSS] Enabling storage xenmotion on xenserver 6.1
>>> 
>>> Hi,
>>> 
>>> XenServer introduced support for Storage XenMotion in the latest
>>> version (6.1). Storage XenMotion allows VMs to be moved from one host
>>> to another, where the VMs are not located on storage shared between
>>> the two hosts. It provides the option to live migrate a VM's disks
>>> along with the VM itself. It is now possible to migrate a VM from one
>>> resource pool to another, or to migrate a VM whose disks are on local
>>> storage, or even to migrate a VM's disks from one storage repository to
>> another, all while the VM is running.
>>> More information on Storage XenMotion can be found at [1].
>>> 
>>> I have filed a jira request [2] to track this feature. I plan to
>>> extend the migrate vm cloudstack api call to allow migration of
>>> instances across clusters. Do let me know your comments.
>>> 
>>> [1] http://blogs.citrix.com/2012/08/24/storage_xenmotion/
>>> [2] https://issues.apache.org/jira/browse/CLOUDSTACK-659
>>> 
>>> Regards,
>>> Devdeep


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