How do I identify the causes of downtime when I modify an Amazon RDS or Amazon Aurora instance?

Resolution

When you modify your Amazon RDS or Amazon Aurora instance or cluster, you might experience downtime when the modification is applied. Modifications that might cause downtime are engine version upgrades, storage type changes, scaling your instance, or option group modifications.

For an updated list of modification options for Amazon RDS for MySQL, see Settings for DB instances. Check the Downtime Notes column to determine if downtime occurs when you perform a modification.

For an updated list of modification options for Amazon Aurora for MySQL, see Modifying an Amazon Aurora DB cluster. Check the Downtime Notes column to determine if downtime occurs when you perform a modification.