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Scaling CPU and Memory for a DB Instance
The DB Instance class specifies the CPU and memory capacity of a DB Instance. You can scale the CPU and memory capacity of a DB Instance up or down by specifying a new DB Instance class.
In this example, you change the DB Instance class of an existing DB Instance called mydbinstance to Extra Large.
AWS Management Console
To modify the CPU class for an Amazon RDS instance
Sign in to the AWS Management Console and open the Amazon RDS console at https://console.aws.amazon.com/rds/.
In the My DB Instances list, select the check box next to the DB Instance you wish to delete.
Click the Modify button or right-click the DB Instance and select Modify from the context menu.
The Modify DB Instance window appears.
Select the new DB Instance class from the DB Instance Class drop-down list box.
Click the OK button.
CLI
To modify the CPU class for an Amazon RDS instance
Use the command
rds-modify-db-instancewith the following parameters:PROMPT>rds-modify-db-instance mydbinstance --db-instance-class db.m1.large
This command produces output similar to the following:
DBINSTANCE mydbinstance 2009-10-21T18:32:37.080Z db.m1.small MySQL 50 sa available mydbinstance.clouwupjnvmq.us-east-1.rds.amazonaws.com 3306 us-east-1a 3 db.m1.large n 5.1.57 general-public-license SECGROUP default active PARAMGRP default.MySQL5.1 in-sync
API
To modify the CPU class for an DB Instance
Call
ModifyDBInstancewith the following parameters:DBInstanceIdentifier=myinstancenameDBInstanceClass=db.m1.large
Example
https://rds.amazonaws.com/ ?Action=ModifyDBInstance &DBInstanceIdentifier=mydbinstance &DBInstanceClass=db.m1.large &SignatureVersion=2 &SignatureMethod=HmacSHA256 &Timestamp=2009-10-14T17%3A48%3A21.746Z &AWSAccessKeyId=<AWS Access Key ID> &Signature=<Signature>
