RDSは、起動時および停止中にストレージサイズを変更可能。 ストレージの空き状況も、CloudWatchのFreeStorageSpaceで確認可能。 では、Storageには何がはいっているのか？ https://forums.aws.amazon.com/thread.jspa?threadID=75508 The storage space used by your instance does not include the MySQL or Oracle binaries, but does include the databases, innodb log files, binlogs, and the InnoDB tablespace (ibdata1, which grows automatically) and log files which are usually sm