Last updated on JANUARY 21, 2016
Applies to:Oracle VM - Version 3.2.1 to 3.3.1 [Release OVM32 to OVM33]
While upgrade Oracle VM 3.2.x to Oracle VM 3.3.x, VM Manager had already been upgraded, but only part of VM Server nodes (dom0) upgraded.
Under some situation, some VM Server failed join to the pool.
Restart ovmm service could not help.
The VM Server may being showed as "Unknown" server, clean up the server by removing agent db and OCFS2 cluster configuration (The operation is not encouraged hence details will not be elaborated here.) then discover server again, it also could not help.
Attempt any activity on VM Manager and below error message is displayed:
During upgrade, while not all VM Servers been upgraded, added new VM Server into pool, or shutdown/remove existing VM Servers from pool.
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