**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*.