Hello Sandro,

Thanks so much for your reply to my query on the ovirt-users list and I'm actually unable to upgrade from 3.4 to 3.5.
In the GUI I see it chage from 3.5 back to 3.4. I just tried again now. But it still the same sort of error:

May 18, 2018 7:12:26 PM Data Center ny2 was updated by admin@internal
May 18, 2018 7:12:26 PM Data Center ny2 has encountered problems during upgrade process.
May 18, 2018 7:12:26 PM VDSM command failed: Upgrading a pool while an upgrade is in process is unsupported (pool: `9667c5e8-97b1-4e09-be44-2696a69f8959`): ''

The reason I'm trying to upgrade the compatibility of the DC is this is to speed up the export of VMs from our 3.6.x to the 4.2.x environments. In other words minimize VM downtime. 

Thanks,
Joe,


From: Sandro Bonazzola <sbonazzo@redhat.com>
Sent: Tuesday, May 8, 2018 5:54 PM
To: Joseph Kelly; Tal Nisan; Martin Perina
Cc: users@ovirt.org
Subject: [External] Re: [ovirt-users] Data Center Upgrade to 3.6 fails with "Upgrading a pool while an upgrade is in process is unsupported" - any fix for this ?
 


2018-05-07 9:04 GMT+02:00 Joseph Kelly <Joseph.Kelly@tradingscreen.com>:

Hello All - I'm trying to upgrade a Data Center in ovirt 3.6.4 from 3.4 to 3.6 but I'm getting this error when I tried:

Hi,
please be sure to upgrade the engine from 3.4 to 3.5 and then from 3.5 to 3.6: direct upgrade from 3.4 to 3.6 has never been tested and has never been officially supported.
I would suggest to keep the system updated to latest supported version in order to have quick fixes and less trouble during updates.
Adding some people who may help on this.
 

May 7, 2018 3:07:55 PM VDSM command failed: Upgrading a pool while an upgrade is in process is unsupported 
(pool: `9667c5e8-97b1-4e09-be44-2696a69f8959`)

Please note that all clusters are already at 3.6 compatability and the final step is to upgrade the Data Center to 3.6.
So I've tried these steps as a workaorund from the RHEV tech-doc below but it hasn't worked for me: 

    Deactivate the Export and ISO domains.
    Switch SPM to another host.
    Try the upgrade again
    Activate Export and ISO domains as required.


And I also tried to search mail-archive.com for past Email but didn't find anything matching this particular issue.


So has anyone found another way to fix this problem e.g. does the ovirt DB need to be directly updated ? 

Thanks,
Joe.


--
J. Kelly
Infrastructure Engineer
TradingScreen
www.tradingscreen.com
email: joseph.kelly@tradingscreen.com
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--

SANDRO BONAZZOLA

ASSOCIATE MANAGER, SOFTWARE ENGINEERING, EMEA ENG VIRTUALIZATION R&D

Red Hat EMEA

sbonazzo@redhat.com