The in-cluster upgrade feature will allow users to upgrade RHEL 6 hosts in a RHEL 6 cluster to RHEL 7, without the need for the workaround described in https://access.redhat.com/articles/1390733 See http://www.ovirt.org/Features/InClusterUpgrade#InClusterUpgrade for more information on the implementation of this feature.
Retargeted to match the engineering bug's target milestone.
Affected content: * The standard upgrade procedure in the Upgrade Guide[1] * The self-hosted engine upgrade procedure in the SHE Guide[2] [1] https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Virtualization/3.6/html/Upgrade_Guide/Upgrading_a_Red_Hat_Enterprise_Linux_6_Cluster_to_Red_Hat_Enterprise_Linux_7.html [2] https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Virtualization/3.6/html/Self-Hosted_Engine_Guide/Upgrading_the_Self-Hosted_Engine_from_6_to_7.html
Assigning to Byron for review.
Some corrections: 1) http://file.bne.redhat.com/~bgraveno/1301447/doc-Upgrade_Guide/Upgrading_a_Red_Hat_Enterprise_Linux_6_Cluster_to_Red_Hat_Enterprise_Linux_7.html * No virtual machines with the migration option "Do not allow migrations" or "Allow manual migration only" selected. * Also you do not allow to create or update VM with above migration options when InClusterUpgrade policy enabled. * After you finish install of RHEL7 on host, you need to fetch new SSH fingerprint(Host->Edit->General->Advanced Parameters->fetch) and reinstall host via engine(Host->Reinstall) * RHEV-H upgrade for major versions not supported via engine, so you need to install RHEV-H7 on the host or via PXE or via USB-key and after installation finish, you must do the same steps as for RHEL (fingerprint and reinstall) 2) http://file.bne.redhat.com/~bgraveno/1301447/doc-Self_Hosted_Engine_Guide/Upgrading_the_Self-Hosted_Engine_from_6_to_7.html * No virtual machines with the migration option "Do not allow migrations" or "Allow manual migration only" selected. * I believe we have some problem in flow: 1) Upgrade engine VM to 3.6(global maintenance, correct repos, yum update, engine-setup) and do not update hosts (because hosts still RHEL6) 2) Enable InClusterUpgrade policy 3) Start upgrade of hosts(like you described under Upgrading Red Hat Enterprise Linux 6 Hosts to 7 Hosts in the Red Hat Enterprise Virtualization 3.6 Environment)