Currently, AnalyticDB for PostgreSQL provides two instance type families.

  • High-performance: The type names start with gpdb.group.segsdx. This instance type family offers better I/O performance.

  • High-capacity: The type names start with gpdb.group.seghdx. This instance type family offers larger and more cost-effective storage space.

We recommend that you choose the appropriate instance type based on the storage space and compute capacity as required.

AnalyticDB for PostgreSQL supports OSS-based external tables and data compression in external storage through gzip. You can store the data that are not involved in real-time computing to external storage to save costs.

Type specification

The specification for high-performance instances is shown in the table as follows.

High-performance type family CPU Memory Storage space
gpdb.group.segsdx1 1 Core 8 GB 80 GB SSD
gpdb.group.segsdx2 2 cores 16 GB 160 GB SSD
gpdb.group.segsdx16 16 Cores 128 GB 1.28 TB SSD

The specification for high-capacity instances is shown in the following table.

High-capacity type family CPU Memory Storage space
gpdb.group.seghdx4 4 Cores 32 GB 2 TB HDD
gpdb.group.seghdx36 36 Cores 288 GB 18 TB HDD