From kripper at imatronix.cl Wed Oct 14 07:53:51 2015 Content-Type: multipart/mixed; boundary="===============1480910050458667275==" MIME-Version: 1.0 From: Christopher Pereira To: devel at ovirt.org Subject: Re: [ovirt-devel] OVF_STORE volumes are not updated Date: Wed, 14 Oct 2015 08:53:49 -0300 Message-ID: <561E424D.2090801@imatronix.cl> In-Reply-To: CADgXf3xsnrydQDK+QM4uaJ2gKKjHmFdctKYCSPdP5jLJ0=Y4uQ@mail.gmail.com --===============1480910050458667275== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable This is a multi-part message in MIME format. --------------020106050903080905010807 Content-Type: text/plain; charset=3Dutf-8; format=3Dflowed Content-Transfer-Encoding: 7bit Yes. On 14-10-2015 8:48, Allon Mureinik wrote: > This is what we discussed on BZ#1268842, right? > > On Mon, Oct 5, 2015 at 11:35 AM, Christopher Pereira = > > wrote: > > Hi, > > I noticed that OVF_STORE volumes are not generated periodically as > expected [1]. > It seems like the OVF_STORE volumes are only generated when the > Storage Domain is detached from Engine, which is not feasible if > we want to keep the VMs running. > > 1) Is there any way to force the OVF_STORE volume creation without > detaching the Storage Domain? > > This would be very usefull for disaster recovery, since Storage > Domains can be backed up and VM can be reimported. > But if the OVF_STORE volumes are not updated, critical information > like the ID of the VM active snapshot will get lost. > If the VM is restored with a previous snapshot (not the last one), > all information written after the last snapshot known by the > OVF_STORE will get lost. > > 2) On the other hand, the only way I know to re-read the OVF_STORE > content with the VM information contained in a Storage Domain, is > by detaching and re-attaching it. > I wonder if there is also any way to re-read the OVF_STORE? > > [1] : This can be verified very easily by changing a running VM > properties (change its name or create a snapshot), copying the > whole storage domain and importing it into another Engine > (POOL_UID and CHECKSUM must be removed from metadata in order to > be able to attach to another Datacenter). > > PS: I'm on 3.6 RC. 1. > _______________________________________________ > Devel mailing list > Devel(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/devel > > > --------------020106050903080905010807 Content-Type: text/html; charset=3Dutf-8 Content-Transfer-Encoding: 7bit Yes.

On 14-10-2015 8:48, Allon Mureinik wrote:

This is what we discussed on BZ#1268842, right?

On Mon, Oct 5, 2015 at 11:35 AM, Christopher Pereira <kripper(a)imatronix.cl> wrote:

Hi,

I noticed that OVF_STORE volumes are not generated periodically as expected [1].
It seems like the OVF_STORE volumes are only generated when the Storage Domain is detached from Engine, which is not feasible if we want to keep the VMs running.

1) Is there any way to force the OVF_STORE volume creation without detaching the Storage Domain?

This would be very usefull for disaster recovery, since Storage Domains can be backed up and VM can be reimported.
But if the OVF_STORE volumes are not updated, critical information like the ID of the VM active snapshot will get lost.
If the VM is restored with a previous snapshot (not the last one), all information written after the last snapshot known by the OVF_STORE will get lost.

2) On the other hand, the only way I know to re-read the OVF_STORE content with the VM information contained in a Storage Domain, is by detaching and re-attaching it.
I wonder if there is also any way to re-read the OVF_STORE?

[1] : This can be verified very easily by changing a running VM properties (change its name or create a snapshot), copying the whole storage domain and importing it into another Engine (POOL_UID and CHECKSUM must be removed from metadata in order to be able to attach to another Datacenter).

PS: I'm on 3.6 RC. 1.
_______________________________________________
Devel mailing list
Devel(a)ovirt.org
http://lists.ovirt.org/m= ailman/listinfo/devel

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