On 10/02/2013 12:40 AM, Christian Kolquist wrote:just wondering - any reason you prefer fedora to .el6 (centos/rhel)?
I am planning on testing the modify existing to become an export domain.
That will only require me to copy within the isilon cluster a copy of
the data which only will take about 1 hour. The plan is to do the
following:
1. Load Fedora 19 on new engine server and install the engine, add new
storage domain shares and get fully up and running without adding any nodes
sounds good to me
2. shutdown all VM's and then remove the nodes
3. shutdown engine on current server
4. copy the existing storage domain to another location on the NAS and
share it out over NFS.
5. Add nodes to new engine
6. Modify the copy of the storage domain to be an export domain
(http://humblec.com/convert-master-data-domain-to-export-domain-in-a-crashed-rhevmovirt-setup/)
7. Add it in as an existing export domain on the new engine server and
start import of VM's (will take probably 4-6 hours or maybe longer,
total storage is ~1TB of data)
Are there any further suggestions to this? If this plan fails then I
will be able to revert back to the original engine server and domain.
<mailto:iheim@redhat.com>> wrote:
On 10/01/2013 06:39 PM, Christian Kolquist wrote:
We have a NFS storage cluster (Isilon) for the domain.
The main question: is there a way to bring in an existing
storage domain
to a new engine without exporting it then importing it? This
would be
good for not just upgrades but also disaster recovery as well.
yes, importing an existing data domain is a high priority for us for
next version as the issue was raised several times by community users.
for 3.3, there a few options (the first one is the cleanest)
1. "save the export part"
- stop using the domain in 3.1
- change its meta data to that of an export domain
- import it as an existing export domain to 3.3
- import the VMs
2. "re-create the VMs / import disks"
- stop using the domain in 3.1
- create a new (empty) domain in 3.3
- move all disks to the new domain (assuming you create the new nfs
export in a way allowing you to move, not copy, from the old export)
- use the register disk api to add all disks
- create VMs and associate the disks to them
yes, this one requires to document first which disk is for which VM.
i think someone scripted something around this option.
if your disks have snapshots, this may become too complex.
3. re-create the VMs and override their disks.
this was suggested several times in the past, but if you have
snapshots, not relevant.
On Tue, Oct 1, 2013 at 8:24 AM, Itamar Heim <iheim@redhat.com
<mailto:iheim@redhat.com>------------------------------____----------------------------__--__---<mailto:iheim@redhat.com <mailto:iheim@redhat.com>>> wrote:
On 09/30/2013 04:55 PM, Christian Kolquist wrote:
So, after many frustrating weekends of trying to
upgrade ovirt
from 3.1,
I have come to the conclustion that it would just be
best to
export all
of our VM's and Import them once I have redone the entire
installation
with FC19 and ovirt 3.3. Is there a way to export the
entire domain
easily? Or to bring the entire domain into a new
install of the
engine?
Exporting a single VM takes a very long while. It
would take a
couple
of days to export all of our VM's (33 total vm's using
1.017 TB
of data)
and then reimport them using the normal means of
exporting the
machines
off then on to the export domain, load the new engine
server
then import
them all back in.
Any tips or tricks would be welcome.
do you have a single data domain in the DC?
is it nfs or something else?
Christian
FYI, I ran into just about every single bug that people
had when
upgrading from 3.1 to 3.2 and a few more. I can't
spend any
more time
troubleshooting the upgrade process. If we can't do the
export->import
easily or migrate the current storage domain we will
probably
have to
get rid of ovirt and move to another solution.
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