Q

Cold backups after SHUTDOWN ABORT

An Oracle user asks if a cold backup can be performed after closing the database with SHUTDOWN ABORT.

Is a cold backup consistent if you close your database with SHUTDOWN ABORT?
It is good practice to perform an orderly shutdown (NORMAL, TRANSACTIONAL, or IMMEDIATE) before performing the cold backup. However, you will still obtain a consistent cold backup if you perform a SHUTDOWN ABORT. And I have had no issues restoring from such a backup in the past. But just to be safe, I always recommend an orderly shutdown.

I have had some instances that take a very long time for an orderly shutdown. For those cases, I perform a SHUTDOWN

ABORT, STARTUP RESTRICT and then a SHUTDOWN IMMEDIATE. This way, I can ensure an orderly shutdown has been performed, and the instance terminates much more quickly than if I did not do the SHUTDOWN ABORT.

This was first published in July 2008

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