This topic introduces the rules of weight distribution by the system.

When the read weights are automatically set for instances by the system, the values of these weights are fixed, as shown in the following table.

Table 1. Weights for SQL Server read-only instances
Specification code Specification type Memory CPU Weight
rds.mssql.s2.large General-purpose instance 4 GB 2 400
rds.mssql.s3.large General-purpose instance 8 GB 4 800
rds.mssql.c1.large General-purpose instance 16 GB 8 1600
rds.mssql.s2.xlarge General-purpose instance 8 GB 2 800
rds.mssql.m1.medium General-purpose instance 16 GB 4 1600
rds.mssql.c1.xlarge General-purpose instance 32 GB 8 3200
rds.mssql.c2.xlarge General-purpose instance 64 GB 16 6400