[Engine-devel] move disk command

[Livnat Peer]

On 17/01/12 23:00, Miki Kenneth wrote:
> 
> 
> ----- Original Message -----
>> From: "Omer Frenkel" <ofrenkel at redhat.com>
>> To: "Jon Choate" <jchoate at redhat.com>
>> Cc: engine-devel at ovirt.org
>> Sent: Tuesday, January 17, 2012 10:41:43 AM
>> Subject: Re: [Engine-devel] move disk command
>>
>>
>>
>> ----- Original Message -----
>>> From: "Jon Choate" <jchoate at redhat.com>
>>> To: "Ayal Baron" <abaron at redhat.com>
>>> Cc: engine-devel at ovirt.org
>>> Sent: Monday, January 16, 2012 9:39:55 PM
>>> Subject: Re: [Engine-devel] move disk command
>>>
>>> On 01/16/2012 02:26 PM, Ayal Baron wrote:
>>>>
>>>> ----- Original Message -----
>>>>> On 01/16/2012 05:26 PM, Jon Choate wrote:
>>>>>> As part of the multiple storage domains feature there will be
>>>>>> new
>>>>>> functionality added to allow users to move individual disks.
>>>>>>
>>>>>> What are the prerequisites for moving a disk?
>>>>>>
>>>>>> 1) the disk must exist
>>>>>> 2) the associated VM must be down
>>>>> this can't just be a CanDoAction check - the lock has to be real
>>>>> to
>>>>> prevent a race from starting the VM after the validation.
>>>>>
>>>> Either down or disk is unplugged.
>>>>
>>>>>> 3) the associated VM must not be locked
>>>>>> 4) the source storage domain must exist
>>>>>> 5) the source storage domain must be available
>>>>>> 6) the target domain must exist
>>>>>> 7) the target domain must be available
>>>>>> 8) the target domain must have adequate disk space
>>>>>> 9) the target domain cannot be an ISO or export domain
>>>>>> 10) the source domain cannot be an ISO or export domain
>>>> This may be unrelated, but user would be allowed to export and
>>>> import a floating disk, right?
>>>> I would like the ability to import *any* disk in the export
>>>> domain
>>>> as a floating disk, but in the least, export and import disks not
>>>> associated with a VM.
>>
>> you are right, it is unrelated, this thread is about move disk of a
>> vm between SDs,
>> export and import is copy, and floating disks is part of the shared
>> disk feature,
>> this indeed need to be discussed in that scope.
> So what is the behavior of a move of a floating disk? can I move any type of disk?
> (shared?) between SDs? 

You can move around all disks, except:
- Template disk - which has VMs based on this disk in this SD.
- VM disk - which is based on a template disk that does not exist on the
destination domain.