Use ModifyReservedInstances with a CLI

Example 1: To modify Reserved Instances

The following modify-reserved-instances example moves a Reserved Instance to another Availability Zone in the same region.

aws ec2 modify-reserved-instances \
    --reserved-instances-ids a1b2c3d4-5678-90ab-cdef-EXAMPLE11111 \
    --target-configurations AvailabilityZone=us-west-2c,Platform=EC2-Classic,InstanceCount=10

Output:

{
    "ReservedInstancesModificationId": "rimod-d3ed4335-b1d3-4de6-ab31-0f13aaf46687"
}

For more information, see Modify Reserved Instances in the Amazon EC2 User Guide.

Example 2: To modify the network platform of Reserved Instances

The following modify-reserved-instances example converts EC2-Classic Reserved Instances to EC2-VPC.

aws ec2 modify-reserved-instances \
    --reserved-instances-ids a1b2c3d4-5678-90ab-cdef-EXAMPLE22222 \
    --target-configurations AvailabilityZone=us-west-2c,Platform=EC2-VPC,InstanceCount=5

Output:

{
    "ReservedInstancesModificationId": "rimod-82fa9020-668f-4fb6-945d-61537009d291"
}

For more information, see Modify Reserved Instances in the Amazon EC2 User Guide.

Example 3: To modify the instance size of Reserved Instances

The following modify-reserved-instances example modifies a Reserved Instance that has 10 m1.small Linux/UNIX instances in us-west-2c so that 8 m1.small instances become 2 m1.large instances, and the remaining 2 m1.small become 1 m1.medium instance in the same Availability Zone.

aws ec2 modify-reserved-instances \
    --reserved-instances-ids a1b2c3d4-5678-90ab-cdef-EXAMPLE33333 \
    --target-configurations AvailabilityZone=us-west-2c,Platform=EC2-Classic,InstanceCount=2,InstanceType=m1.large AvailabilityZone=us-west-2c,Platform=EC2-Classic,InstanceCount=1,InstanceType=m1.medium

Output:

{
    "ReservedInstancesModificationId": "rimod-acc5f240-080d-4717-b3e3-1c6b11fa00b6"
}

For more information, see Modify Reserved Instances in the Amazon EC2 User Guide.

Example 1: This example modifies the Availability Zone, instance count, and platform for the specified Reserved instances.

$config = New-Object Amazon.EC2.Model.ReservedInstancesConfiguration
$config.AvailabilityZone = "us-west-2a"
$config.InstanceCount = 1
$config.Platform = "EC2-VPC"

Edit-EC2ReservedInstance `
-ReservedInstancesId @("FE32132D-70D5-4795-B400-AE435EXAMPLE", "0CC556F3-7AB8-4C00-B0E5-98666EXAMPLE") `
-TargetConfiguration $config

Example 1: This example modifies the Availability Zone, instance count, and platform for the specified Reserved instances.

$config = New-Object Amazon.EC2.Model.ReservedInstancesConfiguration
$config.AvailabilityZone = "us-west-2a"
$config.InstanceCount = 1
$config.Platform = "EC2-VPC"

Edit-EC2ReservedInstance `
-ReservedInstancesId @("FE32132D-70D5-4795-B400-AE435EXAMPLE", "0CC556F3-7AB8-4C00-B0E5-98666EXAMPLE") `
-TargetConfiguration $config