Our systems are designed to be very resilient - all domain records are stored across 3 DNS servers and mail is handled across 3 mail exchanges for added performance and resilience.
In addition servers are spread across seperate links / sites for superior resilience.
Our main servers are SMP (symmetric-multi-processor) for added performance and have
RAID disk arrays with both hot (and cold) spare drives to protect against drive failure. This makes them very reliable - in fact some of our servers have been "up" for over 600 days (last
taken down nearly 2 years ago to repace the battery backup units). Where possible we only take servers "down" for planned maintenance or upgrades!
APC Smart UPS battery backup systems are used to protect against power fluctuations or
outages on all servers and network equipment and we have installed an advanced, monitoring intruder detection system supported by ADT / BT RedCare.
You may also find the pages "About Our Network" of interest - click