
Our hosting services are provided through Principal's advanced network operations center, located in the U.S. It is connected to the world by three high speed DS-3 Internet connections through three separate providers: Sprint, MCI, and UUnet. This high speed connectivity combined with exceptionally fast and reliable servers ensures your Web site will be fast and responsive, 24 hours a day, every day.
The advanced technology features the following:
Unix Web Servers
| Silicon Graphics Origin 200 and Challenge S Servers | |
| 256 to 512 MB of RAM | |
| 4 GB System Disk | |
| 18 GB Striped Data Storage | |
| Dual 180 MHZ RISC CPUs | |
| Operating System - IRIX V6.4 | |
| Web Server Software - Apache V1.2 |
Cisco 7505 Routers
| Internet backbone level routing |
Internal Backbone
| 1.2 GB/s Cisco Catalyst 5000 switches as backbone | |
| Each server has dedicated 10 MB ports | |
| Speed to router is 100 mb/s |
Connectivity
| Three (3) full fiber optic T3's to multiple redundant and diverse backbones (UUnet, MCI, and Sprint), with additional redundancy / diversity from dual building entry points and multi-homed central office provisioning. Systems monitor backbone performance and automatically send IP traffic down the shortest path using the Cisco BGP4 protocol. |
Backup Power
| All servers and communications equipment receive uninterrupted power via Deltec battery backup (UPS). | |
| Backup generator can power the entire complex and all critical equipment. |
Backup Storage
| All sites are backed-up daily to a 40 TB (terabyte) robotic tape backup system by Storage Technologies which employs the latest DLT4 technology. |