Types of Sandboxes ?

1. Developer Sandbox
2. Developer pro sandbox
3. Partial data sandbox
4. Full copy sandbox

Developer Sandbox:

•  It copy only configuration changes from the production
• It won’t copy real time data
• We can test the configuration changes with sample data
• Sample data limit is 200mb
• Refresh time interval is one day
• If we refresh all the sandbox contents will be replaced with production contents.

Developer Pro Sandbox:

• Copy configuration changes
• No real time data
• Sample data limit is 1GB
• Refresh time interval one day

Partial data sandbox:

• Copy configuration changes
• Copy certain amount of real time data
• Real time data limit is 5GB
• For each table it can copy maximum of 10k records
• Refresh interval 5 days

Full copy sandbox:

• It is exact replica of the production
• Copy both configuration and entire real time data from the production
• Refresh time interval 29 days 

How to create a sandbox in salesforce ?

To create the sandbox, in production we can find one link called sandboxes. by clicking on that link we can create the sandbox by choosing type of the sandbox.

•  Go to Setup --> Administration Setup --> Data Management --> Sandboxes.

 

•  Click "New Sandbox" button.

 

• Enter a name and click "Next" Button.

•  Click "Create" button.