As mike said .. when we  deploy a vm ,root disk will be created with instance 
id(root-3) id and this  the number is  increases sequentially when we deploy 
more instances .

Like first system vm s get  instance id as 1,2 for cpvm and ssvm  with root 
disks tagged with instanced id like root-1 for cpvm,root-2 for ssvm and later  
router and guest vms gets next incremental ids .

Data disks will be created with the whatever name we provided.

Regards
Sadhu







-----Original Message-----
From: Mike Tutkowski [mailto:mike.tutkow...@solidfire.com] 
Sent: 20 June 2014 23:08
To: dev@cloudstack.apache.org
Subject: Re: Volume Instance IDs

When you deploy a VM, a root disk will be created for it automatically. I 
imagine the instance ID of this root volume will be that of the VM.


On Fri, Jun 20, 2014 at 11:36 AM, Mike Tutkowski < 
mike.tutkow...@solidfire.com> wrote:

> When you create a volume in the GUI, as well, it will not have an 
> instance ID.
>
> Once you attach the volume to a VM, this is when the volume gets an 
> instance ID (the association between the volume and the VM that "owns" 
> it at the time being).
>
> Now, I'm not sure I understand what one would do if one wanted to 
> apply a clustered file system to such a volume and have it accessible 
> to multiple VMs (who are hopefully coordinating access to the data on 
> the volume). I'm guessing CloudStack doesn't support this?
>
>
> On Fri, Jun 20, 2014 at 7:30 AM, Matt Spurlin 
> <matt.spur...@appcore.com>
> wrote:
>
>> I have been poking around at the code for deploying VMs and noticed 
>> that it appears volumes need an instance ID in order to be chosen as 
>> a suitable volume for the VM. When I create a volume through the API 
>> it does not have an instance ID. How do volumes get this instance ID?
>> Thanks,
>> Matt
>>
>
>
>
> --
> *Mike Tutkowski*
> *Senior CloudStack Developer, SolidFire Inc.*
> e: mike.tutkow...@solidfire.com
> o: 303.746.7302
> Advancing the way the world uses the cloud
> <http://solidfire.com/solution/overview/?video=play>*™*
>



--
*Mike Tutkowski*
*Senior CloudStack Developer, SolidFire Inc.*
e: mike.tutkow...@solidfire.com
o: 303.746.7302
Advancing the way the world uses the cloud
<http://solidfire.com/solution/overview/?video=play>*™*

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