
The layer-two application servers are talking to the third layer, the database servers. These back-end servers, following the www.dell.com example, hold SKU pricing, configuration parameters, transaction processing information, ERP integration, etc., which in turn allow customers to successfully purchase a Dell solution.
In addition to PowerEdgeTM servers and PowerVaultTM fibre channel and SCSI storage, Dell offers Network Attached Storage (NAS) and Storage Area Network (SAN) solutions, high-speed server interconnects, and clustering technology to provide solutions from end-to-end in your Internet/Intranet infrastructure.