It combines their processing, and, if one fails, the processing load shifts to the other. Duplicate files or data are written into a separate hard disk partition, or even onto a computer in another location. A mirror is essentially a backup that's instantly ready in case the original goes down. Some small organizations don't have the time, money, or computer resources to run their own server connected to the Internet, so they rent space on an Internet service provider's server. Many European state and local government agencies are using ISPs in this way.
Dynamic contents place an enormous load on a server's processor, much heavier than static pages do.
To deal with the heavier workload, many users add more processing power to their server. As dynamic content becomes more common, a growing percentage of Web sites will run into their current server's processing limits. It incorporates Dual Independent Bus Architecture, Dynamic Execution and the P6 100MHz system bus. The chip implements Intel's Extended Server Memory Architecture and 36-bit addressing. Windows NT 4.0 allows addressing of as much as 4GB, but Intel is providing a patch that will allow up to 8GB with 450NX and 64GB with future chip sets.