**To start a migration**
The following ``start-migration`` migrates your data from self-hosted Redis on Amazon EC2 to Amazon ElastiCache, using the Redis engine. ::
aws elasticache start-migration \
--replication-group-id test \
--customer-node-endpoint-list "Address='test.g2xbih.ng.0001.usw2.cache.amazonaws.com',Port=6379"
Output ::
{
"ReplicationGroup": {
"ReplicationGroupId": "test",
"Description": "test",
"GlobalReplicationGroupInfo": {},
"Status": "modifying",
"PendingModifiedValues": {},
"MemberClusters": [
"test-001",
"test-002",
"test-003"
],
"NodeGroups": [
{
"NodeGroupId": "0001",
"Status": "available",
"PrimaryEndpoint": {
"Address": "test.g2xbih.ng.0001.usw2.cache.amazonaws.com",
"Port": 6379
},
"ReaderEndpoint": {
"Address": "test-ro.g2xbih.ng.0001.usw2.cache.amazonaws.com",
"Port": 6379
},
"NodeGroupMembers": [
{
"CacheClusterId": "test-001",
"CacheNodeId": "0001",
"ReadEndpoint": {
"Address": "test-001.g2xbih.0001.usw2.cache.amazonaws.com",
"Port": 6379
},
"PreferredAvailabilityZone": "us-west-2a",
"CurrentRole": "primary"
},
{
"CacheClusterId": "test-002",
"CacheNodeId": "0001",
"ReadEndpoint": {
"Address": "test-002.g2xbih.0001.usw2.cache.amazonaws.com",
"Port": 6379
},
"PreferredAvailabilityZone": "us-west-2c",
"CurrentRole": "replica"
},
{
"CacheClusterId": "test-003",
"CacheNodeId": "0001",
"ReadEndpoint": {
"Address": "test-003.g2xbih.0001.usw2.cache.amazonaws.com",
"Port": 6379
},
"PreferredAvailabilityZone": "us-west-2b",
"CurrentRole": "replica"
}
]
}
],
"SnapshottingClusterId": "test-002",
"AutomaticFailover": "enabled",
"MultiAZ": "enabled",
"SnapshotRetentionLimit": 1,
"SnapshotWindow": "07:30-08:30",
"ClusterEnabled": false,
"CacheNodeType": "cache.r5.large",
"TransitEncryptionEnabled": false,
"AtRestEncryptionEnabled": false
}
}
For more information, see `Online Migration to ElastiCache <https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/OnlineMigration.html>`__ in the *Elasticache User Guide*.