**To modify cache clusters** The following ``modify-cache-cluster`` example modifies the settings for the specified cluster. :: aws elasticache modify-cache-cluster \ --cache-cluster-id "my-cluster" \ --num-cache-nodes 1 Output:: { "CacheCluster": { "CacheClusterId": "my-cluster", "ClientDownloadLandingPage": "https://console.aws.amazon.com/elasticache/home#client-download:", "CacheNodeType": "cache.m5.large", "Engine": "redis", "EngineVersion": "5.0.5", "CacheClusterStatus": "available", "NumCacheNodes": 1, "PreferredAvailabilityZone": "us-west-2c", "CacheClusterCreateTime": "2019-12-04T18:24:56.652Z", "PreferredMaintenanceWindow": "sat:10:00-sat:11:00", "PendingModifiedValues": {}, "CacheSecurityGroups": [], "CacheParameterGroup": { "CacheParameterGroupName": "default.redis5.0", "ParameterApplyStatus": "in-sync", "CacheNodeIdsToReboot": [] }, "CacheSubnetGroupName": "default", "AutoMinorVersionUpgrade": true, "SnapshotRetentionLimit": 0, "SnapshotWindow": "07:00-08:00", "TransitEncryptionEnabled": false, "AtRestEncryptionEnabled": false } } For more information, see `Modifying an ElastiCache Cluster <https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/Clusters.Modify.html>`__ in the *Elasticache User Guide*.