Recently, we have developed a remote sensing imaging publishing system, here will summarize the idea of investigations, techniques, design, etc.. First, guaranteed enough response speed to use multiple web servers, increase throughput; reasonably configure the web server to make it maximum; to allocate large caches to database servers, such as 2G RAM can take 1.8G cache; improve hardware configuration For the use of multi-CPU, increase memory (10G RAM), use the disk array (SCSI port) and use RAID; to the high bandwidth exit of the Internet; a good data organization, such as the resampled pyramid type; Select fast, efficient development technology, such as VB Script ASP ADO; an ASP implements a sub function; database access uses stored procedures; Second, minimize single point failure; use multiple web servers, add availability; use tape drive And backup software back up the entire massive data; UPS power supply three, security issues, protecting databases from hacker attacks Web server and database servers are located on different machines; web servers and database servers use separate intranets, with Internet Using HTTP FireWall before the web server, use Packet Filter FireWall 4, scalability between the web server and the database server, can increase the Webserver to improve throughput;
