Starting November 26, 2024, the read-only instances of ApsaraDB RDS for PostgreSQL standard instances support dedicated instance types with higher CPU, memory, IOPS, and I/O bandwidth limits.
Effective date
November 26, 2024
New instance types
Dedicated instance types allocate physical resources exclusively to a single instance, making them suitable for read-heavy workloads that require predictable, high-throughput performance. The following dedicated instance types are now available for read-only instances of RDS for PostgreSQL standard instances.
In the type codes, x2, x4, and x8 indicate the memory-to-CPU ratio (2 GB, 4 GB, and 8 GB per core, respectively), and 12xlarge, 16xlarge, and 24xlarge indicate the CPU scale tier.
| Instance type family | Instance type | CPU cores and memory | Maximum connections | Maximum IOPS | Maximum I/O bandwidth |
|---|---|---|---|---|---|
| Dedicated | pgro.x2.12xlarge.1c | 96 cores, 192 GB | 19,200 | 240,000 | 2,048 MB/s |
| pgro.x4.12xlarge.1c | 96 cores, 384 GB | 38,400 | 240,000 | 2,048 MB/s | |
| pgro.x8.12xlarge.1c | 96 cores, 768 GB | 76,800 | 240,000 | 2,048 MB/s | |
| pgro.x2.16xlarge.1c | 128 cores, 256 GB | 25,600 | 320,000 | 2,560 MB/s | |
| pgro.x4.16xlarge.1c | 128 cores, 512 GB | 51,200 | 320,000 | 2,560 MB/s | |
| pgro.x8.16xlarge.1c | 128 cores, 1,024 GB | 102,400 | 320,000 | 2,560 MB/s | |
| pgro.x2.24xlarge.1c | 192 cores, 384 GB | 38,400 | 500,000 | 4,096 MB/s | |
| pgro.x4.24xlarge.1c | 192 cores, 768 GB | 76,800 | 500,000 | 4,096 MB/s | |
| pgro.x8.24xlarge.1c | 192 cores, 1,536 GB | 153,600 | 500,000 | 4,096 MB/s |
These instance types are available for read-only instances only.
Billing
Pricing is based on the instance type and the region where your RDS instance is located. For prices, visit the buy page of ApsaraDB RDS for PostgreSQL.
What's next
To create a read-only instance using one of these instance types, see Create a read-only ApsaraDB RDS for PostgreSQL instance.