I recently upgraded my database engine on RDS from Maria 10.2 to 10.6. Since I've done that, I've noticed that the available free storage is dropping extremely quickly... way more quickly than what data writes account for.
I've checked user database info, logs, and all other metrics on RDS look normal. The site itself is a bit peppier than it was before the upgrade, so I checked the caching variables, and all seems to be normal there. Nothing I see accounts for a 10GB drop in free storage over the past 36 hours.
Any ideas?
Image of Free Storage metric. The drop in the middle occurred during the upgrade.
