Monday, September 1, 2014

12.2.4 Online Patching Downtime Mode

Online Patching Downtime Mode


There is new, not advertised, "hidden" feature in the new 12.2.4 AD pack, what is an admission that current online patching mode is not the best not the fastest way to apply patches on a system.
This new feature is the "downtime mode" feature for patching the run(!) edition directly, just like before 12.2 system. The only requirement is that you should shutdown the whole application tier.

Citing from the document:
"Online Patching Downtime Mode New Feature in R12.AD.C.Delta.5 and R12.TXK.C.Delta.5
This new feature helps optimizing the process of upgrading to Oracle E-Business Suite 12.2. When applying Oracle E-Business Suite patches in this mode, adop will first confirm that the application tier services are down, and will then proceed to apply the patch to the run edition of the Oracle E-Business Suite database and file system.

Downtime mode patching does not use an online patching cycle. The process of applying a patch in downtime mode completes more quickly than in online mode, but at the cost of increased system downtime."

Enough interesting, isn't it?

Search for "downtime mode" phrase here:
http://docs.oracle.com/cd/E26401_01/doc.122/e22954/T202991T531062.htm