HybridDB for PostgreSQL instances are categorized into the following type families:
High-performance: The name of this type family starts with “gpdb.group.segsdx“. This type family features a better I/O capability that secures higher performance.
High-capacity: The name of this type family starts with “gpdb.group.seghdx“. This type family features a larger and more affordable space to meet higher storage demands.
When selecting a type family, you only need to take the storage space and computing capability into consideration.
Besides, HybridDB for PostgreSQL supports OSS-based external table extensions and data compression in external storage through gzip. You can store data that is not required for real-time computation in an external storage to further reduce storage costs.
Instance types
The high-performance instances offer the following types:
| Instance type | CPU | Memory | Disk |
|---|---|---|---|
| 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 high-capacity instances offer the following types:
| Instance type | CPU | Memory | Disk |
|---|---|---|---|
| gpdb.group.seghdx4 | 4 Cores | 32 GB | 2 TB HDD |
| gpdb.group.seghdx36 | 36 Cores | 288 GB | 18 TB HDD |