Limited Rolling Upgrade with OPATCH
Prior to Oracle 9i Release 2, whenever you were required to apply a patch to your RAC environment, you had to shut down all instances on each node under the specific ORACLE_HOME to be patched. As you can imagine, this did not sit well with programs that have high availability requirements. Starting with 9.2.0.2, and further enhanced in Oracle 10g, the server now supports the application of patches to nodes of a RAC cluster in a rolling manner with zero down time. Eligible patches can be applied using the opatch utility one node at a time, while the other active nodes in the cluster remain up and operational. Currently, only individual patches—that is, one-off patches, not complete patch sets—may be classified ...
Get Oracle® Database 10g Insider Solutions now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
