1. Disk Storage Space Evaluation
The storage space requirements for a GBase cluster are calculated based on the data volume of the business system, the choice of compression algorithm, and the number of cluster replicas. The data volume of a business system usually includes the following aspects:
- Historical data volume
- Incremental data volume and the size of each increment
- Data storage period and total data volume for the entire period
- Data growth rate and reserved storage space
Example
Considering the above aspects, assume that the total data volume for the entire period of a certain business system is 30TB. The calculation method for the physical disk capacity of the GBase cluster is as follows: