[Engine-devel] Shared Raw Disk - Design change

[Itamar Heim]

On 03/13/2012 08:36 PM, Maor Lipchuk wrote:
...

>> 1. affected components - isn't vdsm aware of this as well wrt disk lock
>> protection (appears in both urls)
> You right, Backend sends VDSM an indication when ever we create a VM
> whether the disk is shared or not.
> I Added the OVirt Node, as a related component in the dependencies tab
> at the wiki.

ovirt node isn't the affected component. vdsm is.
ovirt node has vdsm in it, but so does any host running vdsm (i.e., full 
blown fedora host).

>>
>> 2. Remove Shared Disk
>> maybe make it clear this is about delete, not detach from this vm?
>> my view - UI should have a clear warning (with checkbox approval) making
>> it clear delete will remove the shared disk from all VMs sharing it.
> I tried to stay consistent with the semantic here, by not mentioning
> delete and remove in the same sentence.
> I changed it to be as follow:
>
> User can remove the shared raw disk entirely from the setup, whether the
> disk is inactive in all the VMs which are attached to it, or all the VMs
> which the disk is attached to, are in status down (or any combination of
> the two).
> When disk will be removed a warning message should display the user the
> following message :
>
> "Removing the shared disk will remove it from all the VMs which are
> associated with it."

consult einav on phrasing, or assume it will be looked at later on again 
i guess.

>
>>
>> 3. Copy Shared Disk
>> this is "clone disk"? do we have it for non shared disks?
> I'm not sure I understood completely.
> Move disk for shared disk, will need to have the same functionality as
> regular disk, the only difference is that fir shared disk I check all
> the VMs which the disk is attached to, whether the disk is inactive in
> the running VMs or attached to non active VMs.>

your reply started with "move disk for...". I'm asking on "Copy Shared 
Disk".
do we have a copy disk action?

Thanks,
    Itamar