Wednesday, January 22, 2014

Ops Center - Orphaned LDom after live migration

UPDATE: We recently upgraded to 12.2 and I can confirm this issue is still present in 12.2. The work-around listed below still works thankfully...

Recently I was charged with upgrading the system firmware across our T4-4 fleet. One of the provisos was that no LDom could be shutdown during the upgrade. This of course meant I needed to lean heavily on Oracle Enterprise Ops Center's "live migration" feature. Which at best, is more of a warm migration.

We are still running 12c Update 2 (not for long hopefully), so there were many issues encountered. One of the more annoying issues was after each migration, the LDom appeared to not be associated with a CDom anymore. It was still associated, and nothing actually was broken, just the view from the BUI showed it sitting at the top of the All Assets tree. And given it's aparent location, I was unable to migrate it again, until the hierarchy display was resolved.

An easy fix I discovered was restarting the proxy service on our colocated EC/Proxy server.

# /opt/SUNWxvmoc/bin/proxyadm stop -vw
# /opt/SUNWxvmoc/bin/proxyadm start -vw

Refresh the browser, and it's fixed. I logged an SR about this, and aparently it is resolved in Update 4 and/or the upcoming "Diamond" release. The engineer I spoke to did mention that a proxyadm restart fixed a lot of various BUI display issues...


  1. Do you have idea when "Diamond" release will be available? or what's expected out of this release?

  2. From what I've heard, Diamond release (or 12c Release 2) has been pushed back due to further testing required. There's a lot of hype around this release, primarily due to it's ability to do away with the greenfield/brownfield concept. Essentially you will be able to make ldm change from the CDom layer, and Ops Center will be smart enough to know, and reflect these changes in the BUI. There's a lot of other features, eg The capability to handle the new M series hardware.

    1. Just a small update to my last commen...12.2 (diamond) makes life a lot easier with Ops Center being able to pull in configuration changes made with ldm on the CLI.