This page describes the differences between the available Redis tiers.
Memorystore for Redis supports Basic and Standard Tiers. The Basic Tier is best suited for applications that use Redis as a cache and can withstand a cold restart and full data flush. Standard Tier instances provide High Availability using replication and automatic failover. Choose the Standard Tier to prevent data loss during an instance restart, scaling, or maintenance.
|Specifications||Basic Tier||Standard Tier|
|Description||Provides a cache with no replication||Provides redundancy and availability using replication|
|Max instance size||300 GB||300 GB|
|Max network bandwidth||12 Gbps||12 Gbps|
¹ Basic Tier instances experience a downtime and a full cache flush during scaling up or down. Standard Tier instances experience minimal downtime and loss of some unreplicated data during the scaling operation. For more information, see Scaling Behavior.