This topic describes the specifications that are available for hosts in ApsaraDB for MyBase.

Hosts in MyBase for MySQL dedicated clusters that use local SSDs

Host instance type Instance family Number of CPU cores Memory (GB) Internal bandwidth (Gbit/s) CPU model
rds.i2g.16xlarge i2g, instance family with local SSDs 64 256 10 Intel Xeon (Skylake) Platinum 8163
rds.i2g.8xlarge i2g, instance family with local SSDs 32 128 6 Intel Xeon (Skylake) Platinum 8163
rds.i2g.4xlarge i2g, instance family with local SSDs 16 64 3 Intel Xeon (Skylake) Platinum 8163
rds.i2g.2xlarge i2g, instance family with local SSDs 8 32 2 Intel Xeon (Skylake) Platinum 8163
rds.i2.16xlarge i2, instance family with local SSDs 64 512 10 Intel Xeon (Skylake) Platinum 8163
rds.i2.8xlarge i2, instance family with local SSDs 32 256 6 Intel Xeon (Skylake) Platinum 8163
rds.i2.4xlarge i2, instance family with local SSDs 16 128 3 Intel Xeon (Skylake) Platinum 8163
rds.i2.2xlarge i2, instance family with local SSDs 8 64 2 Intel Xeon (Skylake) Platinum 8163
rds.i2.xlarge i2, instance family with local SSDs 4 32 1 Intel Xeon (Skylake) Platinum 8163

The following table describes the performance metrics of local SSDs.

Metric rds.i2.xlarge and rds.i2g.2xlarge Other i2 and i2g instance types Instances of the highest specifications
Maximum capacity 894 GiB 1,788 GiB 8 × 1,788 GiB
Maximum read IOPS 150,000 300,000 1,500,000
Maximum read throughput 1 GB/s 2 GB/s 16 GB/s
Maximum write throughput 0.5 GB/s 1 GB/s 8 GB/s
Access latency Within microseconds

The values in the Instances of the highest specifications column represent the performance of rds.i2.16xlarge instances. These values represent the performance of local SSDs of the highest specifications in the i2 instance family.

Hosts in MyBase for MySQL or MyBase for PostgreSQL dedicated clusters that use enhanced SSDs (ESSDs)

Host instance type Instance family Number of CPU cores Memory (GB) Internal bandwidth (Gbit/s) Storage IOPS (ten thousand) Disk bandwidth (Gbit/s) CPU model
rds.ebmr6.26xlarge ebmr6, memory-optimized ECS Bare Metal Instance family 104 768 32 21 16 Intel Xeon (Cascade Lake) Platinum 8269CY
rds.ebmg6.26xlarge ebmg6, general-purpose ECS Bare Metal Instance family 104 384 32 21 16 Intel Xeon (Cascade Lake) Platinum 8269CY
rds.ebmc6.26xlarge ebmc6, compute-optimized ECS Bare Metal Instance family 104 192 32 21 16 Intel Xeon (Cascade Lake) Platinum 8269CY
rds.ebmr5s.24xlarge ebmr5s, memory-optimized ECS Bare Metal Instance family with enhanced network performance 96 768 30 21 16 Intel Xeon (Skylake) Platinum 8163
rds.ebmg5s.24xlarge ebmg5s, general-purpose ECS Bare Metal Instance family with enhanced network performance 96 384 30 21 16 Intel Xeon (Skylake) Platinum 8163
rds.ebmc5s.24xlarge ebmc5s, compute-optimized ECS Bare Metal Instance family with enhanced network performance 96 192 30 21 16 Intel Xeon (Skylake) Platinum 8163
rds.ebmhfr6.20xlarge ebmhfr6, memory-optimized ECS Bare Metal Instance family with high clock speeds 80 768 32 21 16 Intel Xeon (Cascade Lake) Platinum 8269CY
rds.ebmhfg6.20xlarge ebmhfg6, general-purpose ECS Bare Metal Instance family with high clock speeds 80 384 32 21 16 Intel Xeon (Cascade Lake) Platinum 8269CY
rds.ebmhfc6.20xlarge ebmhfc6, compute-optimized ECS Bare Metal Instance family with high clock speeds 80 192 32 21 16 Intel Xeon (Cascade Lake) Platinum 8269CY
rds.r5.16xlarge r5, memory-optimized instance family 64 512 20 N/A N/A Intel Xeon (Skylake) Platinum 8163 or Intel Xeon (Cascade Lake) Platinum 8269CY
rds.g5.16xlarge g5, general-purpose instance family 64 256 20 N/A N/A Intel Xeon (Skylake) Platinum 8163 or Intel Xeon (Cascade Lake) Platinum 8269CY
rds.c5.16xlarge c5, compute-optimized instance family 64 128 20 N/A N/A Intel Xeon (Skylake) Platinum 8163 or Intel Xeon (Cascade Lake) Platinum 8269CY
rds.r6.13xlarge r6, memory-optimized instance family 52 384 12.5 10 8 Intel Xeon (Cascade Lake) Platinum 8269CY
rds.g6.13xlarge g6, general-purpose instance family 52 192 12.5 10 8 Intel Xeon (Cascade Lake) Platinum 8269CY
rds.c6.13xlarge c6, compute-optimized instance family 52 96 12.5 10 8 Intel Xeon (Cascade Lake) Platinum 8269CY
rds.r6.8xlarge r6, memory-optimized instance family 32 256 10 6 5 Intel Xeon (Cascade Lake) Platinum 8269CY
rds.g6.8xlarge g6, general-purpose instance family 32 128 10 6 5 Intel Xeon (Cascade Lake) Platinum 8269CY
rds.c6.8xlarge c6, compute-optimized instance family 32 64 10 6 5 Intel Xeon (Cascade Lake) Platinum 8269CY
rds.r6.6xlarge r6, memory-optimized instance family 24 192 10 5 4 Intel Xeon (Cascade Lake) Platinum 8269CY
rds.g6.6xlarge g6, general-purpose instance family 24 96 10 5 4 Intel Xeon (Cascade Lake) Platinum 8269CY
rds.c6.6xlarge c6, compute-optimized instance family 24 48 10 5 4 Intel Xeon (Cascade Lake) Platinum 8269CY
rds.r6.4xlarge r6, memory-optimized instance family 16 128 10 4 3 Intel Xeon (Cascade Lake) Platinum 8269CY
rds.g6.4xlarge g6, general-purpose instance family 16 64 10 4 3 Intel Xeon (Cascade Lake) Platinum 8269CY
rds.c6.4xlarge c6, compute-optimized instance family 16 32 10 4 3 Intel Xeon (Cascade Lake) Platinum 8269CY
rds.r6.2xlarge r6, memory-optimized instance family 8 64 8 2.5 2 Intel Xeon (Cascade Lake) Platinum 8269CY
rds.g6.2xlarge g6, general-purpose instance family 8 32 8 2.5 2 Intel Xeon (Cascade Lake) Platinum 8269CY
rds.c6.2xlarge c6, compute-optimized instance family 8 16 8 2.5 2 Intel Xeon (Cascade Lake) Platinum 8269CY

Hosts in MyBase for SQL Server dedicated clusters that use ESSDs

Host instance type Instance family Number of CPU cores Memory (GB) Internal bandwidth (Gbit/s) Storage IOPS (ten thousand) Disk bandwidth (Gbit/s) CPU model
mssql.cluster.host.c4xlarge c6, compute-optimized instance family 16 32 10 4 3 Intel Xeon (Cascade Lake) Platinum 8269CY
mssql.cluster.host.g4xlarge g6, general-purpose instance family 16 64 10 4 3 Intel Xeon (Cascade Lake) Platinum 8269CY
mssql.cluster.host.r4xlarge r6, memory-optimized instance family 16 128 10 4 3 Intel Xeon (Cascade Lake) Platinum 8269CY
mssql.cluster.host.g6xlarge g6, general-purpose instance family 24 96 10 5 4 Intel Xeon (Cascade Lake) Platinum 8269CY
mssql.cluster.host.r6xlarge r6, memory-optimized instance family 24 192 10 5 4 Intel Xeon (Cascade Lake) Platinum 8269CY
mssql.cluster.host.c8xlarge c6, compute-optimized instance family 32 64 10 6 5 Intel Xeon (Cascade Lake) Platinum 8269CY
mssql.cluster.host.g8xlarge g6, general-purpose instance family 32 128 10 6 5 Intel Xeon (Cascade Lake) Platinum 8269CY
mssql.cluster.host.r8xlarge r6, memory-optimized instance family 32 256 10 6 5 Intel Xeon (Cascade Lake) Platinum 8269CY
mssql.cluster.host.g16xlarge g5, general-purpose instance family 64 256 20 N/A N/A Intel Xeon (Skylake) Platinum 8163 or Intel Xeon (Cascade Lake) Platinum 8269CY
mssql.cluster.host.r16xlarge r5, memory-optimized instance family 64 512 20 N/A N/A Intel Xeon (Skylake) Platinum 8163 or Intel Xeon (Cascade Lake) Platinum 8269CY
mssql.host.c2xlarge c6, compute-optimized instance family 8 16 8 2.5 2 Intel Xeon (Cascade Lake) Platinum 8269CY
mssql.host.g2xlarge g6, general-purpose instance family 8 32 8 2.5 2 Intel Xeon (Cascade Lake) Platinum 8269CY
mssql.host.r2xlarge r6, memory-optimized instance family 8 64 8 2.5 2 Intel Xeon (Cascade Lake) Platinum 8269CY
mssql.host.g4xlarge g6, general-purpose instance family 16 64 10 4 3 Intel Xeon (Cascade Lake) Platinum 8269CY
mssql.host.r4xlarge r6, memory-optimized instance family 16 128 10 4 3 Intel Xeon (Cascade Lake) Platinum 8269CY
mssql.host.r6xlarge r6, memory-optimized instance family 24 192 10 5 4 Intel Xeon (Cascade Lake) Platinum 8269CY
mssql.host.r8xlarge r6, memory-optimized instance family 32 256 10 6 5 Intel Xeon (Cascade Lake) Platinum 8269CY
mssql.host.r16xlarge r5, memory-optimized instance family 64 512 20 N/A N/A Intel Xeon (Skylake) Platinum 8163 or Intel Xeon (Cascade Lake) Platinum 8269CY
mssql.cluster.host.eg20xlarge ebmhfg6, general-purpose ECS Bare Metal Instance family with high clock speeds 80 384 32 21 16 Intel Xeon (Cascade Lake) Platinum 8269CY
mssql.cluster.host.er20xlarge ebmhfr6, memory-optimized ECS Bare Metal Instance family with high clock speeds 80 768 32 21 16 Intel Xeon (Cascade Lake) Platinum 8269CY