Well this can be very time consuming but first thing first 1) how is your installation done? 2) is this an HA env? 3) chaining from 6.x to 7 is good but may not play well 4) database schema changed from Icehouse to Juno so keep that in mind.
Then you can start thinking on the upgrades. I know some of my coworker had hard time to upgrade. Recommended is rebuild / migrate. Ciao Remo > On Aug 17, 2015, at 12:53, Chris <cont...@progbau.de> wrote: > > Hello, > > We currently plan to upgrade our Openstack setup from Icehouse to Juno or > even Kilo. This also includes a version upgrade on the host based OS from > Centos 6.6 to 7.x > I have some questions regarding the upgrade an hope to learn from your > experience. > > First question is, is there a Openstack version compatibility guaranteed > within the different releases? The idea behind it to upgrade the different > services (compute nodes / management nodes) in separate phases. > Second, is the live-migration with block-migrate feature compatible between > versions. One upgrade solution we currently playing with is to move existing > VMs with live-migration & block-migrate (no shared storage) to fresh > installed Centos 7 Kilo compute nodes. > > Any best practice tips highly appreciated! > > Cheers, > Chris > > > > > !DSPAM:1,55d1bf33255572126019201! > _______________________________________________ > Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > <http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack> > Post to : openstack@lists.openstack.org > <mailto:openstack@lists.openstack.org> > Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > <http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack> > > > !DSPAM:1,55d1bf33255572126019201!
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