AWS AmazonRDS documentation change
Summary
Added pre-upgrade checklist section and snapshot recovery instructions
Security assessment
Checklist includes security-adjacent best practices (backup verification) and restore instructions improve disaster recovery documentation. No specific vulnerability addressed.
Diff
diff --git a/AmazonRDS/latest/UserGuide/USER_UpgradeDBInstance.Oracle.Overview.md b/AmazonRDS/latest/UserGuide/USER_UpgradeDBInstance.Oracle.Overview.md index 54a864fc5..4c8ae6e29 100644 --- a//AmazonRDS/latest/UserGuide/USER_UpgradeDBInstance.Oracle.Overview.md +++ b//AmazonRDS/latest/UserGuide/USER_UpgradeDBInstance.Oracle.Overview.md @@ -7 +7 @@ -Major and minor version upgradesSupport dates and mandatory upgradesEngine version managementAutomatic snapshots during upgradesOracle upgrades in a Multi-AZ deploymentOracle upgrades of read replicas +Major and minor version upgradesSupport dates and mandatory upgradesEngine version managementPre-upgrade checklistAutomatic snapshots during upgradesOracle upgrades in a Multi-AZ deploymentOracle upgrades of read replicas @@ -20,0 +21,2 @@ Before upgrading your RDS for Oracle DB instance, familiarize yourself with the + * Pre-upgrade checklist + @@ -113,0 +116,19 @@ Amazon RDS periodically aggregates official Oracle database patches using an Ama +## Pre-upgrade checklist + +Before you perform a major version upgrade of your RDS for Oracle DB instance, complete the following preparation steps: + + * Verify that your applications are compatible with the target Oracle Database version. Test your application code, queries, and stored procedures against the target version. + + * Check for deprecated initialization parameters in the target version. Remove or replace any parameters that are no longer supported. + + * Verify that your option group is compatible with the target version. Some options require updates or have different settings for different major versions. + + * Verify that your parameter group is compatible with the target version. Some parameters have different valid ranges or default values in newer versions. + + * Confirm that the backup retention period for your DB instance is greater than 0. This ensures that Amazon RDS takes an automatic pre-upgrade snapshot that you can use for recovery. + + * Plan for read replica upgrades. Amazon RDS upgrades read replicas automatically after the source DB instance upgrade completes. Factor the additional downtime for replicas into your maintenance window planning. + + + + @@ -130,0 +152,2 @@ After an upgrade, you can't revert to the previous engine version. However, you +To recover from a failed or problematic upgrade, restore the automatic pre-upgrade snapshot using the [restore-db-instance-from-db-snapshot](https://docs.aws.amazon.com/cli/latest/reference/rds/restore-db-instance-from-db-snapshot.html) AWS CLI command. Note that the restored DB instance has a new endpoint. Update your application connection strings to point to the new DB instance endpoint after the restore completes. +