Help Center/ Distributed Cache Service/ FAQs/ Instance Scaling and Upgrade/ How Do I Reduce the Capacity of a DCS Instance?
Updated on 2026-08-04 GMT+08:00

How Do I Reduce the Capacity of a DCS Instance?

Table 1 lists scaling options supported by different DCS instances.

Table 1 Instance specifications change details

Cache Engine

Single-Node

Master/Standby

Redis Cluster

Proxy Cluster

Read/Write Splitting

Redis 3.0

Scale-up and scale-down

Scale-up and scale-down

-

Scale-up

-

Redis 4.0

Scale-up and scale-down

Scale-up, scale-down, and replica quantity change

Scale-up, scale-down, and replica quantity change

Scale-up and scale-down

Scale-up, scale-down, and replica quantity change

Redis 5.0

Scale-up and scale-down

Scale-up, scale-down, and replica quantity change

Scale-up, scale-down, and replica quantity change

Scale-up and scale-down

Scale-up, scale-down, and replica quantity change

Redis 6.0 Basic Edition

Scale-up and scale-down

Scale-up, scale-down, and replica quantity change

Scale-up, scale-down, and replica quantity change

Scale-up and scale-down

Scale-up, scale-down, and replica quantity change

Redis 6.0 Enterprise Edition

-

Scale-up and scale-down

-

-

-

Redis 7.0

Scale-up and scale-down

Scale-up, scale-down, and replica quantity change

Scale-up, scale-down, and replica quantity change

-

-

Memcached

Scale-up and scale-down

Scale-up and scale-down

-

-

-

For details about how to change the capacity, see Modifying Specifications.

If you want to use a smaller Proxy Cluster DCS Redis 3.0 instance, back up the data of the existing instance, and create a new Proxy Cluster instance with the desired capacity. Then, import the backup data to the new instance. After the data migration is complete, delete the old instance. For details about data migration operations, see Importing Backup Files.