[ovirt-users] Can't move/copy VM disks between Data Centers
Andrei V
andreil1 at starlett.lv
Sun Mar 4 11:27:50 UTC 2018
Hi,
On 02/27/2018 04:29 PM, Fred Rolland wrote:
> Hi,
>
> Just to make clear what you want to achieve:
> - DC1 - local storage - host1 - VMs
> - DC2 - local storage - host2
>
> You want to move the VMs from DC1 to DC2.
Yes, thanks, this is exactly what I want to accomplish.
BTW, are export domains from different data centers visible to each other?
If not, wouldn't be simpler to export VM#1 in DC #1 to Export domain #1,
copy over ssh to DC #2 Export domain, and finally import it into DC #2.
PS. I can't test right now myself, sitting home on sick leave..
>
> What you can do:
> - Add a shared storage domain to the DC#1
> - Move VM disk from local SD to shared storage domain
> - Put shared storage domain to maintenance
> - Detach shared storage from DC1
> - Attach shared storage to DC2
> - Activate shared storage
> - You should be able to register the VM from the shared storage into
> the DC2
> - If you want/need move disks from shared storage to local storage in DC2
>
> Please test this flow with a dummy VM before doing on important VMs.
>
> Regards,
>
> Freddy
>
> On Mon, Feb 26, 2018 at 1:46 PM, Andrei Verovski <andreil1 at starlett.lv
> <mailto:andreil1 at starlett.lv>> wrote:
>
> Hi,
>
> Thanks for clarification. I’m using 4.2.
> Anyway, I have to define another data center with shared storage
> domain (since data center with local storage domain can have only
> 1 host), and the do what you have described.
>
> Is it possible to copy VM disks from 1 data center #1 local
> storage domain to another data center #2 NFS storage domain, or
> need to use export storage domain ?
>
>
>
>> On 26 Feb 2018, at 13:30, Fred Rolland <frolland at redhat.com
>> <mailto:frolland at redhat.com>> wrote:
>>
>> Hi,
>> Which version are you using?
>>
>> in 4.1 , the support of adding shared storage to local DC was
>> added [1].
>> You can copy/move disks to the shared storage domain, then detach
>> the SD and attach to another DC.
>>
>> In any case, you wont be able to live migrate VMs from the local
>> DC, it is not supported.
>>
>> Regards,
>> Fred
>>
>> [1]
>> https://ovirt.org/develop/release-management/features/storage/sharedStorageDomainsAttachedToLocalDC/
>> <https://ovirt.org/develop/release-management/features/storage/sharedStorageDomainsAttachedToLocalDC/>
>>
>> On Fri, Feb 23, 2018 at 1:35 PM, Andrei V <andreil1 at starlett.lv
>> <mailto:andreil1 at starlett.lv>> wrote:
>>
>> Hi,
>>
>> I have oVirt setup, separate PC host engine + 2 nodes (#10 +
>> #11) with local storage domains (internal RAIDs).
>> 1st node #10 is currently active and can’t be turned off.
>>
>> Since oVirt doesn’t support more then 1 host in data center
>> with local storage domain as described here:
>> http://lists.ovirt.org/pipermail/users/2018-January/086118.html
>> <http://lists.ovirt.org/pipermail/users/2018-January/086118.html>
>> defined another data center with 1 node #11.
>>
>> Problem:
>> 1) can’t copy or move VM disks from node #10 (even of
>> inactive VMs) to node #11, this node is NOT being shown as
>> possible destination.
>> 2) can’t migrate active VMs to node #11.
>> 3) Added NFS shares to data center #1 -> node #10, but can’t
>> change data center #1 -> storage type to Shared, because this
>> operation requires detachment of local storage domains, which
>> is not possible, several VMs are active and can’t be stopped.
>>
>> VM disks placed on local storage domains because of
>> performance limitations of our 1Gbit network.
>> 2 VMs running our accounting/inventory control system, and
>> are critical to NFS storage performance limits.
>>
>> How to solve this problem ?
>> Thanks in advance.
>>
>> Andrei
>>
>>
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>
>
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