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Upgrade EBS or DB first ?

Akhash RamnathMar 2 2023


I have this doubt. When we are planning to perform a EBS(R12.1.x to R12.2.x) & DB (11g/12c to 19c) upgrade.

i.e planning and performing both the upgrades in a single downtime window, which is the best practice to follow ?

Upgrade database first and then proceed with EBS or perform the EBS upgrade first and then proceed with DB upgrade.

Is it possible to layout the R12.2 file system prior to DB Upgrade without an active database upgraded 19c database running, so that we shall reduce some time during the cutover ?

Please advise.

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Added on Mar 2 2023