ElasticCache Redis Cluster Mode

For ElasticCache

• Cluster Mode enabled
  • Good to scale write. Data is partitioned across shrads
  • Each sharad has 1 primary and up to 5 replicate node
  • Mutli AZ capability
  • 
  • Up to 500 nodes per cluster
    • 500 with 1 master
    • 250 with 1 master 1 replica
    • 83 shards with one master 5 replicas etc...
• Cluster Mode Disabled
  • 1 node up to 5 replicas
  • Everything in 1 shard
  • Primary node for read/write
  • Replica node for read Only
  • Multi-AZ enabled by default for failover
  •