Key points to reduce the SharePoint disk space in development servers..

Below are the key areas where we can reduce the disk space on the development servers

• Turn off IIS logging
  • IIS Manager >> sites >> sharepoint >> logging >> do not create log files
  • Saves space around 10GB

• Turn off Usage Health Data 
• Sharepoint Central admin >> monitoring >> configure usage health data 
• Saves space around 4GB

• Shrink the main database 
• SQL server manager >> databases >> SharePoint >> tasks >> shrink
• Saves space around 1GB

•   Shrink the web analytics database 
• SQL server manager >> databases >> WebAnalyticsServiceApplication_ReportingDB >> tasks >> shrink
• Saves space around 1GB